<!-- Title: 10:30:57  Tue Aug 28 2001 -->
<!-- Crewchief: Michele -->
<!-- Op1: Koji -->
<!-- Op2: Mary -->
<!-- Op3: Konstantin -->
<!-- Op4: &nbsp; -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
<pre>Write everything!!</pre>


<!-- Date: Tue Aug 28 10:41:27 2001 -->
<pre>Late Entry: 
Several tripps have occurred on HV for the BSC. 
 
At 2:25am on 8/23 : Run 124479(0x01e63f) 
---------------------------------------- 
  Flying wire caused tripps. 
  HV channel 6 (BSC1-3E)  
             9 (BSC2-2W)  ==&gt; Turned on at 2:25am. 
   
At 9:40pm on 8/23 : Run 124581(0x01e6a5) 
---------------------------------------- 
  Flying wire caused trip. 
  HV channel 6 (BSC1-3E)  ==&gt; Turned on at 9:40pm. 
 
At around 5:30pm on 8/26 : during shot setup  
-------------------------------------------- 
  Extremely high beam losses caused tripps. 
  Don't know what channels tripped. 
  ==&gt; shift crew turned on tripped channels with the phone. 
 
At 2:25am on 8/27 : Run 124766(0x01e75e) 
---------------------------------------- 
  Flying wire caused trip. 
  HV channel 8 (BSC2-1W) 
  HV channel 9 (BSC2-2W)  ==&gt; Turned on by shift crew at 2:40am. 
</pre>
<!-- Author: Koji -->


<!-- Date: Tue Aug 28 10:44:22 2001 -->
<pre>Additional changes on BSC2,3 HV. 
 
File: D:HV_TEST (CLC_Forward_Crate.txt)     
HV Ch.  Counter   OLD    NEW    Diff    
--------------------------------------    
 10     BSC2-E1   1420   1320   -100    
 11     BSC2-E2   1570   1620   +50    
 13     BSC3-W2   1390   1340   -50    
-------------------------------------  </pre>
<!-- Author: Koji -->


<!-- Date: Thu Aug 30 14:58:50 2001 -->
<table border=0><td><tr><td bgcolor=#e0e030><pre>Found a possible swap of signal or HV cable in studies of gain 
matching for BSC-2.  
 
When decreasing the voltage for HV channel 10 which should be 
BSC2-1E and remaining the same for HV channel 11 which should be 
BSC2-2E, pulse height distribution (ADC counts) showed lower 
counts for BSC2-2E (FDAD ch 5) and same for BSC2-1E (FDAD ch 4). 
There could a swap somewhere in connections of signal cable or 
HV cable. Checked the signal cable at the crate but found no 
mistakes (as far as we trust the label). Don't know about HV 
cable connections, so will have to check the cables sometime 
later, during the October shutdown.</pre></td></tr></td></table>
<!-- Author: Koji -->


<!-- Date: Thu Aug 30 16:56:05 2001 -->
<pre>Changed voltages for BSC-2 (East) counters as a temporaly  
solution to a swap of channels. 
 
HV Ch.  Counter     OLD    NEW    Diff     
----------------------------------------     
 10     "BSC2-E2"   1320   1450   +130     
 11     "BSC2-E1"   1620   1420   -200     
----------------------------------------  </pre>
<!-- Author: Koji -->


<!-- Date: Fri Aug 31 14:14:34 2001 -->
<pre>Calibration consumer is now available in run control: 
BSCQIEPED 
 
This accesses the script 
/cdf/people1/cdfdaq/consumers/RunBSCQiePed 
 
The calibration consumer code is in 
/cdf/people1/cdfdaq/consumers/code/QiePed_fwd/pro</pre>
<!-- Author: convery -->
<!-- Comment: Fri Aug 31 14;31;57 comment by...convery -->
<pre>I meant runBSCQiePed (not RunBSCQiePed)

this will create banks FDAP and FDAC

log files will be created in 
/cdf/people1/cdfdaq/consumers/log/runBSCQiePed*</pre>


<!-- Date: Sat Sep 1 17:38:19 2001 -->
<pre>HV channels tripped due to flying wire  
at 4:46pm on 9/1 : Run 125275(0x01e95b)  
----------------------------------------  
  HV channel 6 (BSC1-3E)   
             8 (BSC2-1W)   
 
  ==&gt; Recovered at 5:16pm. 
</pre>
<!-- Author: Koji -->


<!-- Date: Fri Sep 7 15:34:05 2001 -->
<pre>Earlier today, Koji and I took a calibration run 125968 
using the new calibration consumer.  Pedestals, etc, are  
in the database.  Still working on DBANA code for analysis.</pre>
<!-- Author: convery,terashi -->


<!-- Date: Tue Sep 11 16:56:42 2001 -->
<pre>Removed a piece of lead plate from the East BSC-1. Will do on the 
West side tomorrow morning...</pre>
<!-- Author: Koji and Mary -->


<!-- Date: Wed Sep 12 17:04:46 2001 -->
<pre>Removed lead plates from the West BSC-1. Let's wait for next  
collision data. </pre>
<!-- Author: Koji and Mary -->


<!-- Date: Thu Sep 13 10:13:11 2001 -->
<pre>Tested BSC-QIE calibration again. 
Had lots of errors, but this is what we have now. These errors 
seem to be due to wide pedestal distributions. I will contact DAQ 
expert to modify "tolerance" for error flags. 
 
Here is an error log for this calibration run 126466. 
 
Error Handler Log File 
All timestamps are referred to CT 
CT: 9/12/2001, 18:58'25"  
Partition:12 Run number: 126466 (0x1ee02) 
(RC)   18:58:29 Config -&gt; READY 
(RC)   18:58:44 Activate -&gt; CALIBRATING 
(MLE) b0clc00:Messenger:6:59:03 PM-&gt;QIE calibration failed 
(b0clc00) QIE calib: slot 16, qie 14:Warn 11: Sigma(off) high    , val 00.6761, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 14:Warn  2: Raw ped high       , val 318.4950, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 15:Warn 11: Sigma(off) high    , val 00.6443, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 15:Warn  2: Raw ped high       , val 307.4000, cap 0, rng0. 
(MLE) b0clc00:Readout_Calib:6:59:03 PM-&gt;ADMEM=16 QIE=0 Fail 14: Sigma(off) big      (12.184006) (0) (0) 
(b0clc00) QIE calib: slot 16, qie 00:Fail 14: Sigma(off) big     , val 12.1840, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 01:Fail 14: Sigma(off) big     , val 14.2289, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 02:Fail 14: Sigma(off) big     , val 21.4495, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 03:Fail 14: Sigma(off) big     , val 01.0477, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 04:Fail 14: Sigma(off) big     , val 11.5395, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 05:Fail 14: Sigma(off) big     , val 12.3095, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 06:Fail 10: No fitting         , val 00.0000, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 07:Fail 14: Sigma(off) big     , val 01.4894, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 08:Fail 14: Sigma(off) big     , val 01.6516, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 09:Fail 14: Sigma(off) big     , val 16.1376, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 10:Fail 14: Sigma(off) big     , val 02.9421, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 11:Fail 14: Sigma(off) big     , val 11.5610, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 12:Fail 14: Sigma(off) big     , val 01.8332, cap 0, rng0. 
(b0clc00) QIE calib: slot 16, qie 13:Fail 14: Sigma(off) big     , val 14.7302, cap 0, rng0. 
(b0clc00) QIE calib: slot 17, qie 00:Fail  6: Raw ped RMS high   , val 37.3120, cap 0, rng0. 
(b0clc00) QIE calib: slot 17, qie 01:Fail  6: Raw ped RMS high   , val 39.1141, cap 0, rng0. 
(b0clc00) QIE calib: slot 17, qie 04:Fail  6: Raw ped RMS high   , val 28.9035, cap 0, rng0. 
(b0clc00) QIE calib: slot 17, qie 05:Fail  6: Raw ped RMS high   , val 24.2927, cap 0, rng0. 
(b0clc00) QIE calib: slot 17, qie 08:Fail  6: Raw ped RMS high   , val 31.3067, cap 0, rng0. 
(b0clc00) QIE calib: slot 17, qie 09:Fail  6: Raw ped RMS high   , val 29.8236, cap 0, rng0. 
(RC)   18:59:4 Activate -&gt; DONE 
(MLE) b0dap19.fnal.gov:AWT-EventQueue-0:6:59:27 PM-&gt;*** Error: CalibLoad not allowed without LoadQIEFRAM *** 
(MLE) b0dap19.fnal.gov:AWT-EventQueue-0:6:59:27 PM-&gt;FSM.beginState(Mark last calib): State.begin() failed, enteri 
ng local error state, Error state for calib_load sub State Machine. 
(RC)   18:59:28 Activate -&gt; ERROR 
(RC)   19:1:43 Reset -&gt; START 
(MLE) b0dap19.fnal.gov:AWT-EventQueue-0:7:06:51 PM-&gt;Exiting Run Control 
</pre>
<!-- Author: Koji -->


<!-- Date: Fri Sep 14 14:15:10 2001 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-7&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-7  width='300' align='top'></td><td>Beam Losses after removing lead plates from the BSC-1</a></td></tr></table>
<!-- Author: Koji -->


<!-- Date: Mon Sep 24 11:03:02 2001 -->
<pre>HV changed for BSC-1 counters (in study of gain matching after 
lead plates removal) 
 
File: D:HV_TEST (CLC_Forward_Crate.txt)      
HV Ch.  Counter   OLD    NEW    Diff     
--------------------------------------     
  0     BSC1-W1   1540   1590   +50   
  1     BSC1-W2   1250   1240   -10     
  2     BSC1-W3   1380   1410   +30     
  3     BSC1-W4   1300   1290   -10     
  4     BSC1-E1   1420   1460   +40     
  5     BSC1-E2   1520   1515   -5     
  6     BSC1-E3   1600   1625   +25     
  7     BSC1-E4   1230   1245   +15       
-------------------------------------  </pre>
<!-- Author: Koji -->
<!-- Comment: Mon Sep 24 11;03;54 comment by...Koji -->
<pre>This was done at 8:35am on 9/20.</pre>


<!-- Date: Mon Sep 24 11:05:03 2001 -->
<pre>HV channle 6 (BSC1-3E) tripped due to flying wire at 3:50pm on 
9/22. It happened during run 127368.</pre>
<!-- Author: Koji -->


<!-- Date: Mon Oct 8 11:54:31 2001 -->
<pre>HV changed for BSC-1 counters at 11:25am on 10/3 
 
File: D:HV_TEST (CLC_Forward_Crate.txt)       
HV Ch.  Counter   OLD    NEW    Diff      
--------------------------------------      
  0     BSC1-W1   1590   1617   +27   
  1     BSC1-W2   1240   1228   -12     
  2     BSC1-W3   1410   1403   -7      
  3     BSC1-W4   1290   1271   -19      
  4     BSC1-E1   1460   1466   +6      
  5     BSC1-E2   1515   1514   -1     
  6     BSC1-E3   1625   1630   +5      
  7     BSC1-E4   1245   1253   +8        
-------------------------------------  </pre>
<!-- Author: Koji -->


<!-- Date: Mon Oct 8 11:58:49 2001 -->
<pre>Test of trigger table TEST_BSC[1,205]:  
 
Checked the rates and bits for BSC and RP triggers during the  
quiet time (although sometimes there were uncoalesced beams..)  
GAP_EAST (pFred bit 1) and GAP_WEST (bit 2) triggers from the BSC  
showed same rates as MB_XING (bit 23) trigger (because they are  
fired if there is nothing above threshold in the BSCs).   
When there were beams in the machine, we observed that the rates  
for two GAP triggers decreased and MB_BSC (bit 48) and MB_CLC 
(bit 16) triggers fired with certain rates.   
Also, changed the prescale factors several times to see what   
happens. The rates for FRED prescaled triggers were what we  
expected. So, it looks this trigger table is working. Will look  
into the data (128477, 128482). </pre>
<!-- Author: Koji -->


<!-- Date: Mon Oct 8 14:22:38 2001 -->
<pre>Checked HV cables for East BSC-2 under the floor behind the power 
supply crate. I didn't see any mistakes. Next, we will check the 
cables in the tunnel. </pre>
<!-- Author: Koji -->


<!-- Date: Fri Nov 16 18:46:13 2001 -->
<pre>Late entry: 
It turned out that a swap was happening on the HV cables for the 
BSC-2 (East). It was fixed by swapping the HV cables from the 
detectors at the connection to the short cables which go to the 
HV board. According to this, the HV values for these two channels 
were also swapped in the configulation file. 
</pre>
<!-- Author: Koji -->


<!-- Date: Wed Nov 21 09:37:17 2001 -->
<pre>New HV settings for the BSC-1: 
Lowered all the high voltages for the BSC-1 to save PMTs. Below 
is a new set of values; 
 
HVch  Counter   OLD   NEW   Diff 
--------------------------------- 
0     BSC1-W1   1617  1556  -61   
1     BSC1-W2   1228  1157  -71 
2     BSC1-W3   1403  1377  -26   
3     BSC1-W4   1271  1223  -48   
4     BSC1-E1   1466  1421  -45 
5     BSC1-E2   1514  1497  -17 
6     BSC1-E3   1630  1585  -45 
7     BSC1-E4   1253  1219  -31 
   
These new values were determined from estimates of HV dependence 
of PMT gains studied before the shutdown. 
 
Also, the trip parameter (Trip in configulation file) for slot 7 
was changed from 1000 which is mysterious number, to 600 which 
means overcurrent is allowed for 600*0.1=60 seconds. </pre>
<!-- Author: Koji -->


<!-- Date: Sun Nov 25 19:36:25 2001 -->
<pre>Proton beam started circulating in the Tevatron. As expected, the 
initial beam was very dirty. It caused many tripps on many 
detectors including the BSC.  
 
Tripped channels were all East BSC-1 counters and East BSC-3  
counters. Put them back on with lowered voltages by 100 V. </pre>
<!-- Author: Koji -->


<!-- Date: Mon Nov 26 10:14:42 2001 -->
<pre>Found two channels (HV ch5, 6)  for BSC-1 (East) were tripped.  
I don't know when these happened. Put them back on with 50V lower voltages.</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Aug 24 11;05;14 comment by...Koji -->
Those channels with lowered voltages (changed on Nov 25 and 26, 2001) were put back to the original settings. But, the HV of all BSC-2, 3 and 4 counters were turned off to study the current drawn from the BSC-1 PMTs. 
<!-- Comment: Tue Aug 24 11;14;42 comment by...Koji -->
<pre>After we understood the "trip" behaviour of BSC HV system, we 
turned the HV back on for BSC-2, 3 and 4 on Dec 4th, 2001. Below is 
the default HV settings of all BSCs being on since run 134051.

--------------------------
HVch#  Counter    HV 
--------------------------  
 0     BSC1-W1   1556     
 1     BSC1-W2   1157      
 2     BSC1-W3   1377      
 3     BSC1-W4   1223  
 4     BSC1-E1   1421   
 5     BSC1-E2   1497     
 6     BSC1-E3   1585     
 7     BSC1-E4   1219   

 8     BSC2-W1   1550    
 9     BSC2-W2   1550      
10     BSC2-E1   1420      
11     BSC2-E2   1450     

12     BSC3-W1   1560      
13     BSC3-W2   1340     
14     BSC3-E1   1460      
15     BSC3-E2   1550      

16     BSC4-W1   1570     
17     BSC4-W2   1600 
-------------------------  

</pre>
<!-- Date: Thu Dec 27 10:49:42 2001 -->
<pre>Took several QIE calibration runs for the BSC ADMEMs with and  
without the transition board to check effects from the board.   
Now the spare transition board is installed in slot 16. </pre>
<!-- Author: Koji -->


<!-- Date: Wed Jan 9 20:05:49 2002 -->
<pre>Readout problme of BSC-3, 4 and Roman Pot trigger counters: 
 
A problem that occupancies for BSC-3, 4 and Roman Pot trigger  
counters have been all zero since 1/7 was noticed on 1/10. Signal 
from a counter (BSC4-1W) was checked by scope and it looked 
normal, so hardware mulfunctioning (transition board or ADMEM)  
was suspected because there were no other obvious reasones. 
 
Finally the problem was tracked down to unisolated output  
connector on the front panel of the ADMEM in slot 17, which 
caused several times 2A fuse to be blown. Now a spare ADMEM is 
installed in the crate, and it is confirmed the board is working 
well by run control QIE calibration and pedestal checks in 
qietest. The replaced board will be fixed soon. 
</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Aug 24 11;35;29 comment by...Koji -->
<table border=0><td><tr><td bgcolor=#e0e030>BAD runs due to this problem is 136361-136603.</td></tr></td></table>
<!-- Date: Mon Jan 14 10:51:41 2002 -->
<pre>Last week (1/11), we put the spare transition board (type #2) for 
beam loss in next slot of original one, and moved all cables to 
the spare board. Also, we replaced a flat cable running from the 
output of the spare board to the input of the DPM in CLC01 with  
a new cable. The length of the cable is 32ft.  
 
Checked beam loss rates and it looks like the defficiency problem 
for the channel of BSC1-2E is fixed.</pre>
<!-- Author: Koji -->
<!-- Comment: Thu Jan 17 16;50;35 comment by...Koji -->
<pre>Later all related cables were moved to the original transition 
board. The defficiency problem was back!! This indicates the 
problem is really on the original type #2 transition board 
instead of the cable.

Next time we access the crate, this board will be pulled out and
given to Charlie for check.</pre>


<!-- Date: Fri Jan 18 16:25:12 2002 -->
<pre>Modifications on send program: 
Being required by Jey (and the BD), a new feature was implemented 
in the send program which is running in the CLC01 crate. The new 
code will be measureing the proton losses for three ABORT GAPs, 
and sending them to ACNET.  
 
The main change was to add code to count hits for the following  
CDF clock cycles: 
 
Ploss AG1 : CDF_CLKs 35-51 
Ploss AG2 : CDF_CLKs 88-104 
Ploss AG3 : CDF_CLKs 141-157 
 
and they are temporarily being sent to ACNET as B0ALOS[1], 
B0ALOS[2] and B0ALOS[3], respectively. 
 
Note that 'true' ABORT GAPs in CDF_CLK are 34-52, 87-105 and  
140-158. Two clcok cycles at both edges of ABORT GAPs were  
removed from counting due to a request from BD. 
 
</pre>
<!-- Author: Koji -->
<!-- Comment: Fri Jan 18 18;16;33 comment by...Koji -->
<pre>After a new store was loaded, all these three losses were zero. 
Then it turned out (pointed out by Rob Roser) that this should 
not work. The beam pick up (PW) signal from clock crate is not
available as a gate during the period of abort gaps. So, the beam
losses during gaps are not gated. </pre>


<!-- Comment: Tue Aug 24 12;31;39 comment by...Koji -->
<table border=0><td><tr><td bgcolor=#e0e030><pre>This comment has nothing to do with above entry, but it happened between Jan 18, 2002 and Jun 4, 2002.

Zero pedestal was found in BSC3-W2 counter on Feb 19, 2002. It 
looks this appeared at latest from run 138788 on Feb 9, 2002 
(according to QIE calib run in DBANA). The previous good QIE calib 
run in DBANA is 137703 on Jan 22. The probem was a loose cable and 
it was fixed on Feb 19 (run 139398). I don't know exactly when this
began between 137703 and 138788 unless we look at the data. In the 
meantime, probably it is safe to say runs 137703-139398 are BAD. </pre></td></tr></td></table>
<!-- Date: Tue Jun 4 12:38:17 2002 -->
<pre>Mary's mail on May 31, 2002: 
 
Hi Koji, 
 
I was just looking at calibrations from this morning in DBANA and 
it looks like the rms for BSC 3W-2 dropped from ~33 to ~2 since 
Tuesday. The pedestal is about 200 and doesn't seem to have 
changed.  Do you know what caused this? 
 
Mary 
---------------------------------------- 
 
We disconnected some signal cables from the BSC (including BSC 
3W-2) to see their signal on the scope on Wednesday. This was 
likely due to that we didn't put back the cable properly. I  
checked the cable connection and made it tight. Next is a result 
from QIE calibration (run 145770) for the BSC. The pedestal and 
its RMS for BSC 3W-2 look fine (note that the HV is off for all 
counters). 
 
</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Aug 24 12;07;25 comment by...Koji -->
<table border=0><td><tr><td bgcolor=#e0e030>BAD runs due to this problem is 145464-145770.</td></tr></td></table>
<!-- Date: Tue Jun 4 12:39:31 2002 -->
<center><a href='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-8&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-8' width='300'></a><a href='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-9&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-9' width='300'></a></center>
<!-- Author: Koji -->
<!-- Comment: Tue Jun  4 12;41;37 comment by...Koji -->
Left plot shows the pedestal and its RMS for all BSC/RP-trigger
counters for the run 145770. Right one shows the calibration
results (Slope error over slope) for them. They look similar to
the reference plots.


<!-- Date: Thu Dec 19 09:01:00 2002 -->
<table border=0><td><tr><td bgcolor=#e0e030><pre>After a long "quiet" time, we have one entry on 12/19. Yesterday 
(12/18) we put a series of L1 spy cables at the BSCTOF PreFred 
transition board in order to check the timing of trigger signals 
with beam. This morning, when the store 2087 was in, the L1 
diffractive triggers showed bit inconsistency and GAP(RP) trigger 
rates were very high(low), e.g, GapE+J5(RP+J5) trigger rate was 
about 270Hz(0.1Hz) after PS, while it is usually around 
130Hz(150Hz). Apparently, the spy cables are causing the delay in 
timing.   
 
This run 155599 should be marked bad for diffraction.</pre></td></tr></td></table>
<!-- Author: K. Terashi -->
<!-- Comment: Thu Dec 19 17;28;57 comment by...Koji -->
It seems this was not due to spy cables. Carla forgot to put the timing back to default setting after yesterday's TOF trigger studies. After she put it back, it appears the diffractive trigger rates were back to normal level. A next (potentially good) run after 155599 is 155602. GapE+J5(RP+J5) trigger rate in run 155602 is 141Hz(70Hz) at L=1.8E31. Old data shows GapE+J5(RP+J5) trigger rate in run 155145 at L=1.8E31 is 144Hz(76Hz).


<!-- Date: Thu Jan 9 09:49:28 2003 -->
<pre>January 8, 2003 
--------------- 
Carla, Mike and I worked together again to test trigger timing at  
L1 trigger. Using Mike's script which sends charge to the ADMEM  
QIEs by faking B0/BC signal in diagnostic FIFOs, we could check  
trigger signal that comes from ADMEM trigger outputs for BSC and  
Miniplug ADMEMs with respect to B0/BC. The PreFRED chip was  
replaced with the latest version (= RP-3 bit 9 instead of 5,  
internal delay of 5 cdf_clks of BSC and MP signals to get them  
timed in with TOF timing). The BSC-ADMEM 1 and MP-ADMEM timings  
are delayed by 2 cdf_clks internally. What was observed in  
PreFRED and FRED indicated that the following timings looked best  
for all of them (except BSC-ADMEM-2);  
 
B0_OFFSET = 21  
FINE_B0_OFFSET = 4 (88 ns)  
FRED_COARSE_DELAY = 3  
FRED_FINE_DELAY = 0  
 
Actually 3, 4 or 5 of FINE_B0_OFFSET looked all fine.   
The trigger sinal from BSC-ADMEM-2 was looked at before PreFRED.  
And found that some channels had positive pulses while others had  
negative pulses, and RP coincidence was not made unfortunately.   
Maybe this can be due to that only ADMEM-2 is configured as the  
plug type, and the FIFOs may not be working well.  
 
Anyway, we decided to keep the system for next shot with new   
timing to see how the data looks. </pre>
<!-- Author: Koji -->


<!-- Date: Thu Jan 9 10:00:54 2003 -->
<pre>L1 GAP tirgger rates: 
--------------------------------------------------- 
               "NEW timing"        "OLD timing"    
                Run#    Lum        Run#    Lum 
                156369  ~13E30     153616  ~13E30 
GAP_EAST_JET5   9.2ub              9.1ub 
GAP_WEST_JET5   8.5ub              8.6ub 
TWO_GAP_JET5    1.1ub              1.0ub  
---------------------------------------------------</pre>
<!-- Author: Koji -->


<!-- Date: Wed Jan 29 19:34:47 2003 -->
After west BSC-1 counters were remounted, the pedestals were checked with qietest and RC QIE calibration. They looked fine. Also, QIE calibration didn't show any problems in DBANA. Loaded new calibration constants (run 157640) for possible changes during this long shutdown.
<!-- Author: Koji -->


<!-- Date: Sun Nov 23 14:58:59 2003 -->
Problem on ADMEM slot 16 in CLC-00 crate:<br> 
Vision failure was seen in the beginning of run and apparently the board was not responding. Checked the board but I didn't figure out what's wrong (fuses looked OK). Contacted Rob to find any available spare and took a spare calorimeter ADMEM from Dervin's office with Rob's approval. Configured the spare ADMEM for BSC use, and it looks working OK for now. Loaded new calibration constants into two ADMEMs (Run 174733). 
  
<!-- Author: Koji -->
<!-- Comment: Sun Nov 23 15;02;28 comment by...Koji -->
ADMEM for BSC: Serial# 106 (slot 16), 333 (slot 17), as of 03/11/23<br>
ADMEM #68 needs to be fixed.



<!-- Date: Tue Dec 2 10:20:39 2003 -->
Problem on BSC-ADMEM (slot 16) in CLC_00 again...<br> 
Shift crew reported the ADMEM (#106) lost communication after power outage at B0 in early Sunday morning. Rob gave me another spare board (#328) from the rack for spare boards in the 3rd floor. I didn't have time to investigate the board since data taking was on going. I don't know if this could be due to same reason as another board failed last week in the same slot of the same crate. It appears the power outage affected the board this time, though. The board was returned to Dervin for repair.
<!-- Author: Koji -->


<!-- Date: Thu Mar 11 11:44:39 2004 -->
<pre>Checked discriminator threshold on the transition board (#1) which the BSC signal goes in. Read out was 975mV on the probe, that means the threshold is 975/65 = 15mV.  
</pre>
<!-- Author: Koji -->


<!-- Date: Thu Mar 11 21:48:45 2004 -->
<center><a href='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-10&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-10' width='300'></a><a href='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-11&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-11' width='300'></a></center>
<!-- Author: Koji -->
<!-- Comment: Thu Mar 11 21;58;17 comment by...Koji -->
BSC-1 detector signal on the scope:<br>
Looked at the signal with proton-only beam in the machine during shot setup. Green is BSC1-West#1 and purple is BSC1-East#1. One can see the BSC1-East#1 signal is about 40nsec later than BSC1-West#1, which is a proton's time of flight between the two BSC1 counters. Left light blue histogram is a projection of green signal onto Y axis. We don't see clean separation of MIP signal on the scope, but this may be consistent with what we see in ADC count data. Note that the discriminator threshold for losses is set to 15 mV. Two pictures show slightly different scales and trigger thresholds. 


<!-- Date: Fri Mar 19 20:47:35 2004 -->
<pre>BSC-1 counter replacement has been done on both sides. The new scintiallator (SCSN81, 9mm thickness) was put to the same PMTs. Tested the new counters with cosmics using the teststand set up in the counting room. Results of the plateau test will be up later. </pre>
<!-- Author: Koji -->


<!-- Date: Wed Mar 24 18:06:42 2004 -->
<pre>BSC-1 new HV settings after March 2004 shutdown: 
 
HVch#  Counter   HV(OLD)   HV(NEW) 
0      BSC1-W1   1556      1200    
1      BSC1-W2   1157      1100    
2      BSC1-W3   1377      1300    
3      BSC1-W4   1223      1050 
4      BSC1-E1   1421      1250    
5      BSC1-E2   1497      1250    
6      BSC1-E3   1585      1300    
7      BSC1-E4   1219      1400 
 
These new HV values were determined from plateau curves of 
new counters. We will need further adjustments according to 
what we see with beam. 
    
The HV of BSC-1 was turned on, as there is a possibility of  
beam tonight. 
</pre>
<!-- Author: Koji -->


<!-- Date: Thu Mar 25 10:57:09 2004 -->
<pre>BSC-1 HV was changed a bit for the BSC1-W3 and BSC1-E4 that looked 
a little noisier than others. 
 
HVch#  Counter   HV(OLD)   HV(NEW)  
2      BSC1-W3   1300      1250     
7      BSC1-E4   1400      1350  
 
HV of other counters is not changed.</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Aug 24 13;49;37 comment by...Koji -->
Run 180958 is the first physics run (bad run due to PCAL crates out, though) after March 2004 shutdown.
<!-- Date: Mon Mar 29 12:59:58 2004 -->
<pre>For reference: 
----------------- 
Hi Mary, 
 
I had some measurements of loss rates after we talked. As I said, 
if more than one mips hit each counter in a given bunch crossing,  
the beam loss we report is not very sensitive to the threshold  
(as long as a mip signal is around or above the threshold).  
Triggering at 15 mV (as in beam loss) on the west counter #1, I  
counted number of signals with peak above 15 mV for each of other  
3 counters. About 55%, 80% and 50% of triggered crossings had  
signals with &gt;15 mV in the counter #2, #3 and #4. This says when  
a counter has a hit, at least one of other 3 counters also has a  
signal in the same crossing. Then I increased the threshold from  
15 mV to 50(100) mV for those 3 counters, then I got 50%, 80% and  
40% (25%, 70%, 20%). I  think this indicates a counter has a  
signal around or above 50 mV but less than 100 mV (when there is  
a loss in a given crossing), since the rates at 15 mV and 50 mV  
are similar and the rate at 100 mV is lower. This would say that  
the threshold of 15 mV (or even 20-25 mV) will be OK. 
 
Koji 
 
PS: As in eve shift elog, I happened to notice the crazy LOSTP.  
The problem was really on a unit of the NIM module. Another unit  
of the module looked OK so I made the same LOSTP signal but with  
the different unit, and connected the LOSTP cable there. The  
original logic is left untouched, so we could put it back in case  
of problems.</pre>
<!-- Author: Koji -->


<!-- Date: Mon Mar 29 14:45:41 2004 -->
<center><a href='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-12&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-12' width='300'></a><a href='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-13&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-13' width='300'></a><a href='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-14&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-14' width='300'></a><a href='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-15&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-15' width='300'></a></center>
<!-- Author: Koji -->
<!-- Comment: Mon Mar 29 14;47;05 comment by...Koji -->
<pre>Rick's plots of BSC losses (LOSTP, LOSTPB) versus his halo counter losses (B0PHSM, B0AHSM) before and after the shutdown.</pre>


<!-- Date: Fri Apr 2 11:41:14 2004 -->
Finally new calibration constants were downloaded into the BSC-ADMEMs. QIE calibration in run 181211 looked OK (no failures) so the calibration was downloaded. The HV of BSC-1 was on while the other BSC-2/3/4 and RP-trigger are off.
<!-- Author: Koji -->


<!-- Date: Mon Apr 5 18:12:33 2004 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-16&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-16  width='300' align='top'></a></td><td>B0 beam losses measured by BSC-1: The drop in the middle is due to lowering the HV of one BSC-1 counter (to not zero but stand-by level) on either side. These two counters are a bit noisy compared to other counters. We still saw the spiky proton loss after the noisy counter was disabled. This plot tells us how much losses could change in a case where one counter is off.</td></tr></table>
<!-- Author: Koji -->


<!-- Date: Wed Apr 28 09:54:32 2004 -->
<pre>Investigated BSC-1 East counter #4 during access on 4/28. No obvious damage was seen in the counter. Put some extra tapes. Put back the counters and checked pecdestal upstairs. They looked same as before the access. Downloaded new calibration constants to ADMEM (run 182246).</pre>
<!-- Author: K. Terashi -->
<!-- Comment: Fri Apr 30 17;23;21 comment by...Koji -->
<pre>The HV of BSC1-W3 counter (HC ch#2) was lowered by 50V from 1250V to 1200V to see how the ADC distribution of the counter changes. The new HV is effective since run 182250.</pre>


<!-- Comment: Thu May  6 09;59;41 comment by...Koji -->
<pre>Late entry: The CAFEDELAY timing was changed for BSC-ADMEM #2 (ADMEM_BSC_01 of slot 17 in cardEditor) from 40 nsec to (old) default value of 66 nsec. This is effective since run 182336.  </pre>
<!-- Date: Tue May 4 12:52:27 2004 -->
<pre>The HV of BSC counters were changed for gain equalization (BSC-1) 
and for just test (BSC-2/3/4): 
 
HVch#  Counter   HV(OLD)   HV(NEW)  
----------------------------------- 
 0      BSC1-W1   1200      1250     
 1      BSC1-W2   1100      1100     
 2      BSC1-W3   1200      1200     
 3      BSC1-W4   1050      1080  
 4      BSC1-E1   1250      1250     
 5      BSC1-E2   1250      1300     
 6      BSC1-E3   1300      1330     
 7      BSC1-E4   1350      1300  
 
 8      BSC2-W1   1550      1600     
 9      BSC2-W2   1550      1550     
10      BSC2-E1   1420      1470     
11      BSC2-E2   1450      1450     
 
12      BSC3-W1   1560      1560     
13      BSC3-W2   1340      1390     
14      BSC3-E1   1460      1510     
15      BSC3-E2   1550      1550     
 
16      BSC4-W1   1570      1600     
17      BSC4-W2   1600      1600     
----------------------------------- 
*note: when a HV was set to &gt;1600V, a warning message that says 
"out of range" poped up when the program read  
CLC_Forward_Crate.txt file.  
The HV of Channel 24 is set to 1650V.Is this an expected feature? 
 
</pre>
<!-- Author: Koji -->
<!-- Comment: Wed May  5 14;13;26 comment by...Koji -->
<pre>This setting is effective since run 182377.</pre>


<!-- Comment: Thu May  6 16;47;39 comment by...Koji -->
<pre>This setting is effective between run 182377 and run 182431.</pre>


<!-- Date: Thu May 6 16:52:36 2004 -->
<pre>The HV of BSC-2/3/4 counters were increased by 50-100 V since  
the previous raising of 50 V didn't change most of the counters. 
 
HVch#  Counter   HV(OLD)   HV(NEW)   
-----------------------------------  
 8      BSC2-W1   1600      1700      
 9      BSC2-W2   1550      1600      
10      BSC2-E1   1470      1520      
11      BSC2-E2   1450      1550      
 
12      BSC3-W1   1560      1660      
13      BSC3-W2   1390      1490      
14      BSC3-E1   1510      1610      
15      BSC3-E2   1550      1650      
 
16      BSC4-W1   1600      1670      
17      BSC4-W2   1600      1700      
-----------------------------------  
*Note: 
HV of channel #24 was also raised from 1650 V to 1750 V. 
 
These settings are effective since run 182433.</pre>
<!-- Author: Koji -->
<!-- Comment: Fri May  7 18;36;01 comment by...Koji -->
<pre>These were effective up to run 182456.</pre>
<!-- Date: Fri May 7 18:35:21 2004 -->
<pre>The HV of BSC counters were changed again for gain equalization (BSC-1) and for study (BSC-2/3/4):  
 
HVch#  Counter   HV(OLD)   HV(NEW)   
-----------------------------------  
 0      BSC1-W1   1250      1280      
 1      BSC1-W2   1100      1100      
 2      BSC1-W3   1200      1200      
 3      BSC1-W4   1080      1100   
 4      BSC1-E1   1250      1250      
 5      BSC1-E2   1300      1330      
 6      BSC1-E3   1330      1340      
 7      BSC1-E4   1300      1270   
 
 8      BSC2-W1   1700      1700      
 9      BSC2-W2   1600      1700      
10      BSC2-E1   1520      1620      
11      BSC2-E2   1550      1650      
 
12      BSC3-W1   1660      1700      
13      BSC3-W2   1490      1590      
14      BSC3-E1   1610      1700      
15      BSC3-E2   1650      1700      
 
16      BSC4-W1   1670      1700      
17      BSC4-W2   1700      1700      
-----------------------------------  
 
These settings are effective since run 182467.</pre>
<!-- Author: Koji -->
<!-- Comment: Wed May 12 14;39;56 comment by...Koji -->
<pre>These settings were effective between run 182467 and 182573.</pre>


<!-- Date: Wed May 12 15:51:27 2004 -->
<pre>The HV of BSC counters were changed again for further gain 
equalization (BSC-1) and for study (BSC-2/3/4):   
 
HVch#  Counter   HV(OLD)   HV(NEW)    
-----------------------------------   
 0      BSC1-W1   1280      1280       
 1      BSC1-W2   1100      1100       
 2      BSC1-W3   1200      1180       
 3      BSC1-W4   1100      1100    
 4      BSC1-E1   1250      1250       
 5      BSC1-E2   1330      1360       
 6      BSC1-E3   1340      1340       
 7      BSC1-E4   1270      1240    
 
The HV of BSC-2/3/4 was moved from CLC-HV crate to a standalone 
power supply (which is below CLC-HV crate) being used for RP  
fiber PMTs. This was necessary because the HV of BSC-2/3/4 is 
going to be different from that of BSC-1 more than the HV range 
(700 V?) allowed in a single module. Actually, when I set 24th 
channel HV to 1850 V, actual voltage of channels set to 1100 V 
was slightly (10-20 V) higher than 1100 V. Below is a new settings 
for BSC-2/3/4 in the power suply. 
 
HVch#  Counter   HV(OLD)   HV(NEW)    
-----------------------------------   
 8      BSC2-W1   1700      1800       
 9      BSC2-W2   1700      1800       
10      BSC2-E1   1620      1720       
11      BSC2-E2   1650      1740       
 
12      BSC3-W1   1700      1800       
13      BSC3-W2   1590      1700       
14      BSC3-E1   1700      1800       
15      BSC3-E2   1700      1800       
 
16      BSC4-W1   1700      1800       
17      BSC4-W2   1700      1800       
-----------------------------------   
 
These settings are effective since run 182574. 
 
</pre>
<!-- Author: Koji -->
<!-- Comment: Thu May 13 14;55;06 comment by...Koji -->
<table border=0><td><tr><td bgcolor=#e0e030>BSC-1 gain looks well equalized with MIP peaks, so above settings are going to be default (since run 182574).</td></tr></td></table>

<!-- Comment: Thu May 13 14;55;48 comment by...Koji -->
<pre>For BSC-2/3/4, above settings are effective between run 182574 and 182610.</pre>


<!-- Date: Thu May 13 14:57:40 2004 -->
<pre>New HV settings for BSC-2/3/4 for gain study: 
 
HVch#   Counter   HV(OLD)   HV(NEW)     
-----------------------------------    
 8      BSC2-W1   1800      1900        
 9      BSC2-W2   1800      1900        
10      BSC2-E1   1720      1720        
11      BSC2-E2   1740      1800        
 
12      BSC3-W1   1800      1900        
13      BSC3-W2   1700      1800        
14      BSC3-E1   1800      1900        
15      BSC3-E2   1800      1900        
 
16      BSC4-W1   1800      1860        
17      BSC4-W2   1800      1900        
-----------------------------------    
 
These settings are effective since run 182611.  
 
 
</pre>
<!-- Author: Koji -->
<!-- Comment: Wed Jul  7 13;53;14 comment by...Koji -->
These settings are effective between runs 182611 and 184905.
<!-- Date: Fri May 14 14:26:16 2004 -->
The CAFEDELAY timing of ADMEM_BSC_01 (slot 17 in CLC00) was switched back from 66 nsec to the default value of 40 nsec in the hardware database. This will be effective from run 182628.
<!-- Author: Koji -->
<!-- Comment: Thu Jun  3 11;31;55 comment by...Koji -->
<pre>The 40 nsec CAFEDELAY is effective between runs 182628 and 182780.</pre>
<!-- Date: Mon May 17 20:51:18 2004 -->
In access of 5/17, we took out the BSC-2 west counter #1 which was broken. This counter didn't show any signal in data even after the HV was raised a lot. We need to fix it. The HV of the counter was turned off.
<!-- Author: Koji -->


<!-- Date: Mon May 17 20:52:42 2004 -->
A CO noticed the BSC3-W1 counter had a large pedestal RMS > 50 in QIE calibration run 182633. Nice to see cosmic data...
<!-- Author: Koji -->
<!-- Comment: Tue Jul  6 20;05;49 comment by...Koji -->
The RMS value of the pedestal of BSC3-W1 turned back to about 30 counts since run 183918 (June 12, 2004). Instead, the value of pedestal itself tended to increase slowly with time and it is now (as of July 6, 2004) more than 500 counts. The RMS value still stays about 30 counts.
<!-- Date: Thu Jun 3 11:33:02 2004 -->
<pre>The CAFEDELAY timing of ADMEM_BSC_01 (slot 17 in CLC00) was changed to 88 nsec from 40 nsec. This is effective between runs 182781 and 183619.</pre>
<!-- Author: Koji -->


<!-- Date: Thu Jun 3 11:34:57 2004 -->
<pre>The CAFEDELAY timing was further changed from 88 nsec to the old default value of 40 nsec in the hardware database to prepare for re-operation of the RP. This is effective since run 183620.</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Jul  6 20;00;37 comment by...Koji -->
This is effective between runs 183620 and 184847.
<!-- Date: Tue Jul 6 19:59:45 2004 -->
Four extention cables (RG-58, 26 nsec length) were installed to the RP trigger counter cables to adjust their timing with respect to the one of BSC-3 and 4. Accordingly the CAFEDELAY timing of ADMEM_BSC_01 (slot 17 of CLC00) was changed from 40 nsec to 66 nsec (40+26). This is effective since run 184848.
<!-- Author: Koji -->





<!-- Date: Wed Jul 7 13:56:52 2004 -->
<pre>New HV settings for BSC-2/3/4 (raised by 100V) 
 
HVch#   Counter   HV(OLD)   HV(NEW)      
-----------------------------------     
 8      BSC2-W1   OFF       OFF         
 9      BSC2-W2   1900      2000         
10      BSC2-E1   1720      1820         
11      BSC2-E2   1800      1900         
 
12      BSC3-W1   1900      2000         
13      BSC3-W2   1800      1900         
14      BSC3-E1   1900      2000         
15      BSC3-E2   1900      2000         
 
16      BSC4-W1   1860      1960         
17      BSC4-W2   1900      2000         
-----------------------------------     
 
These settings are effective since run 184906.  </pre>
<!-- Author: Koji -->


<!-- Date: Wed Jul 7 19:18:32 2004 -->
<pre>BSC-2/3/4 Measurements:&lt;br&gt; 
We measured angle, length and offset of BSC-2/3/4 counters in the 
tunnel. Here is the numbers: 
 
BSC counter    Angle (deg)   Length (inch)   Offset (inch) 
               A1   A2       L1   L2  
BSC2-W1        ?    ?        ?    ?          ? 
BSC2-W2        140  150      4    4.5        same as W1 
BSC2-E1        145  165      4    4.75       0 
BSC2-E2        same as E1    same as E1      same as E1 
 
BSC3-W1        152  160      4    4.75       0 
BSC3-W2        150  160      4    4.5        0 
BSC3-E1        140  147      4    4.5        1.46 
BSC3-E2        140  145      4    4.5        0 
 
BSC4-W1        138  140      4    4          0 
BSC4-W2        160  165      4    4          0 
 
See below for the definitions of angle and length. The offset is 
the vertical distance between the center of the PMT and the 
center of the scintillator. The PMT center is higher (+Y) than  
the scintillator center. Counter #1 is always located inside the  
ring while #2 is outside. 
    
 
</pre>
<!-- Author: Koji -->


<!-- Date: Wed Jul 7 19:21:11 2004 -->
<table><tr><td><a href=/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-17&button=yes target='xxx' onclick='jswindow()'; align=top><img src=/cgi/elog/det-system-elog.pl?nb=beam_counters&action=view&page=-17  width='300' align='top'></a></td><td>Schematic drawing of BSC-2/3/4 counters (not to scale, of cource!). It is a view from top. </td></tr></table>
<!-- Author: Koji -->


<!-- Date: Sat Jul 24 18:02:18 2004 -->
Paged about L2_JET40_&_GAP_EAST trigger turned into red in SL1D monitor in run 185518. The cross section of the trigger is certainly different from the reference value but it is 
quite compatible with some previous runs, and so the ref. should be updated. Real problem is on the GAP_WEST triggers which show essentially zero cross section. Checked YMon occupancy 
plots and found one hot counter (BSC3-W1). This counter had been actually showing some problematic behavior (fluctuating pedestals) in QIE calibration. I turned off the HV of the counter and then GAP_WEST trigger (in prefred) started counting. The GAP_WEST based diffractive triggers will be bad in (at least) runs 185517-185518. Until run 185516 the trigger was working. We have to look at the data to determine the data is good/bad.
<!-- Author: Koji -->
<!-- Comment: Tue Jul 27 11;44;04 comment by...Koji -->
The hot counter in YMon does not necessarily mean the counter is really hot (firing all the time), as the threshold of occupancy is set very low (just 50 counts or so above nominal pedestal).  
<!-- Comment: Thu Jul 29 18;06;35 comment by...Koji -->
The HV of BSC3-W1 counter was off during runs 185518-185691
<!-- Date: Mon Jul 26 14:50:07 2004 -->
Took a few QIE calibration runs of BSC with/without HV on for BSC3-W1 counter. With the HV off (185562), the calibration looks fine (pedestal ~200 counts, RMS ~30 counts) and no failure is reported. With HV on at 1700 (185565) or 1800V (185563), the pedestal increased above 500 counts (though the RMS stayed same at 30 counts). No differences between 1700 and 1800V were seen in pedestal, etc. I downloaded the new calibration constants anyway (they looked fine for MP and other BSCs). The run in which calibrations were loaded is 185566. The HV of BSC3-W1 will be better kept off...
<!-- Author: Koji -->



<!-- Date: Thu Jul 29 17:59:28 2004 -->
<pre>Tried to see BSC3-W1 signal on the scope after the store was 
dumped. Turned on the HV and changed from 1600 to 2000 V but 
nothing (except the fluctuation at a few mV level) was seen on 
the scope. But, when the signal cable was plugged in the crate 
and the pedestal was checked with qietest code, the pedestal 
value certainly jumped up when the HV was turned on and increased 
almost linearly with increasing HV (RMS stayed same). Below is 
the pedestal and its RMS of the BSC3-W1 with different HV; 
 
HV       Pedestal  RMS 
OFF      190       28 
1600 V   690       28 
1700 V   740       29 
1800 V   790       28 
1900 V   850       28 
 
In order to take data until the shutdown, I lowered the HV from 
previous default of 2000 V to 1900 V and took QIE calibration and 
loaded constants. To turn off or lower the HV independently of 
other counters in case of problems, I moved the BSC3-W1 counter 
HV cable to a different power supply. After the calibration with 
constants loaded, I took a DAQ test run with cosmics table to 
confirm that the pedestal after look-up table is set to 150 
counts for all counters.</pre>
<!-- Author: Koji -->
<!-- Comment: Thu Jul 29 18;05;44 comment by...Koji -->
The HV of BSC3-W1 counter is back on at 1900 V from run 185692



<!-- Comment: Mon Aug  2 11;24;54 comment by...Koji -->
The HV was ON between runs 185692-185743.
<!-- Date: Mon Aug 2 11:23:57 2004 -->
<pre>After one-day data taking with store 3685, the pedestal of BSC3-W1 
counter was checked. The pedestal values looked very fluctuated; 
 
HV       Pedestal  RMS  
OFF      190       28  
1600 V   850       28  
1700 V   900      ~70  
1800 V   800      ~350  
1900 V   200      ~220 
 
It appears the counter is becoming much noiser at high voltage 
than yesterday. I turned off the HV of the counter again. It's  
off since run 185744.</pre>
<!-- Author: Koji -->



<!-- Date: Mon Aug 23 10:45:30 2004 -->
Turned off the HV of BSC and RP in the morning of Aug 23rd.
<!-- Author: Koji -->








<!-- Date: Tue Aug 24 14:24:08 2004 -->
<pre>Summary of BSC-2/3/4 Gain Study: 
 
CAFEDELAY setting of ADMEM_BSC_01 (slot 17, CLC00) 
-------------------------------------------------- 
40    150010-182335  -&gt; old default 
66    182336-182627  -&gt; test #1 
40    182628-182780  -&gt; test #2 
88    182781-183619  -&gt; test #3 
40    183620-184847  -&gt; to prepare RP reoperation 
66    184848-        -&gt; short cables added to RP triggers 
   
HV settings 
--------------------- 
#1    182377-182431  -&gt; see above 
#2    182433-182456  -&gt; see above 
#3    182467-182573  -&gt; see above 
#4    182574-182610  -&gt; see above 
#5    182611-184905  -&gt; see above 
#6    184906-185517  -&gt; see above 
#6-1  185518-185691  -&gt; BSC3-W1 off 
#6-2  185692-185743  -&gt; BSC3-W1 = 1900V 
#6-3  185744-        -&gt; BSC3-W1 off, same as #6-1 
 
Note: 
 BSC2-W1 counter was removed on May 17th. It is off since run 182770.</pre>
<!-- Author: Koji -->


<!-- Date: Tue Sep 21 12:06:23 2004 -->
BSC-ADMEM in slot 16 of CLC00 showed the characteristics of a erased FRAM ("Ready" LED on the front panel is off and very large CAFE IDs (>32000) in the crate map in qietest). Followed the recovery procedure written in the MiniPlug e-log and it appears the problem was fixed. Checked the ADMEM with new QIE calibration (run 187390) and loaded new constants.
<!-- Author: Koji -->


<!-- Date: Tue Sep 21 19:38:07 2004 -->
BSC2-W1 PMT which we took out on May 17th was tested in NY and turned out that the PMT was not working. We are going to use PMT #18 for BSC2-W1.
<!-- Author: Koji -->


<!-- Date: Wed Oct 6 18:22:52 2004 -->
<pre>New counters were installed for all BSC-2, 3 and 4.  
Here is the arrangement of the new counters: 
 
Counter       Number 
BSC2-W1    S-0904-00 
BSC2-W2           02 
BSC2-E1           07 
BSC2-E2           05 
 
BSC3-W1           06 
BSC3-W2           04 
BSC3-E1           10 
BSC3-E2           09 
 
BSC4-W1           03 
BSC4-W2           01 
</pre>
<!-- Author: Koji -->


<!-- Date: Thu Oct 7 15:48:11 2004 -->
Checked pedestals of new BSC counters. They looked all good except BSC3-W1 counter which showed an increasing pedestal with increasing HV. It was puzzling because the RMS of the pedestal didn't change with HV. This behavior was actually seen with the old counter before the shutdown (see above entries).<br> 
 
We replaced the PMT (#19) of the BSC3-W1 with a spare (#23). The pedestal was checked again and it looked OK. The pedestal and its RMS values were about 193 and 26 counters, respectively, and they were stable independently of HV. Now the HV of the new PMT is set to 1800 V, though this will be adjusted with beam...
<!-- Author: Koji -->
<!-- Comment: Tue Feb  1 20;01;32 comment by...Koji -->
The replacement PMT #23 was swapped out with another spare in access of Feb. 1st. The BSC3-W1 counter with PMT #23 had shown that the counter was certainly giving signals in data but it appeared that the signal was not increasing well with increased gain. Also, in access of Jan. 21st we could not see any cosmic singals from the BSC3-W1 counter.
<!-- Date: Thu Nov 18 16:13:09 2004 -->
<pre>The HV of BSC-2, 3 and 4 counters (and RP trigger counters) were 
moved to a new HV board (slot 6 in CLC CAEN). Connections of the 
HV cables to the board are same as previous ones, that is, 
 
Counter   HVpin#  HVch#   HV 
------------------------------- 
BSC2-W1   28       8      1700 
BSC2-W2   34       9      1800     
BSC2-E1   40      10      1620     
BSC2-E2   46      11      1700     
BSC3-W1   52      12      1800     
BSC3-W2   58      13      1700     
BSC3-E1   65      14      1800     
BSC3-E2   73      15      1800     
BSC4-W1   32      16      1760     
BSC4-W2   38      17      1800     
 
RP-TRG1   44      18      1100     
RP-TRG2   50      19      1025     
RP-TRG3   56      29      1075     
--------------------------------- 
 
The HV values of BSC-2, 3 and 4 are lowered by 200V from pre-shutdown settings. 
We checked if the HV is turned on properly and it looked working well.</pre>
<!-- Author: Koji, Mary -->
<!-- Comment: Thu Dec  9 11;24;36 comment by...Koji -->
This setting was effective until run 190789. The HV was changed before run 190790 according to the data taken in run 190754. See entry below.
<!-- Comment: Mon Jan 31 14;24;01 comment by...Koji -->
HV ch# of RP-TRG3 should be read as 20 other than 29.
<!-- Date: Mon Nov 22 15:14:38 2004 -->
Checked QIE calibration for all BSC, RP (fiber and trigger) and Miniplug channels with and without HV on. The QIE calibration run with HV off is 190051 and the one with HV fully on is 190054 and 190056. The HV of RP trigger counters are raised by 100 V in those runs (see RP e-log). No difference was seen in the calibration and pedestal between for the HV off and on. Downloaded new calibration constants for all BSC, RP trigger counters and Miniplug channels in run 190056 (HV on). Checked DBANA and it looks good. SMQIE calibration run 190059 is for HV on.
<!-- Author: Koji -->


<!-- Date: Thu Dec 9 11:22:48 2004 -->
<pre>The HV of BSC-2, 3 and 4 counters were moved back to a cow such  
that we can change HV more conveniently.  
 
Counter   HVch#(cow)  HV(old) HV(new) 
------------------------------------- 
BSC2-W1    5          1700    1600 
BSC2-W2    6          1800    1900 
BSC2-E1   17          1620    1800 
BSC2-E2   18          1700    1760  
BSC3-W1    7          1800    1700  
BSC3-W2   11          1700    1900 
BSC3-E1   19          1800    1900 
BSC3-E2   20          1800    1900 
BSC4-W1    9          1760    1860 
BSC4-W2   10          1800    2000 
------------------------------------- 
 
This setting is effective since run 190790.</pre>
<!-- Author: Koji -->
<!-- Comment: Fri Dec 10 15;37;45 comment by...Koji -->
... until run 190874.


<!-- Date: Fri Dec 10 15:40:34 2004 -->
<pre>The HV of BSC-2, 3 and 4 counters were changed again according to 
the data taken with previous HV settings. New voltrages are as follows;   
 
Counter   HVch#(cow)  HV(old) HV(new)  
-------------------------------------  
BSC2-W1    5          1600    1600  
BSC2-W2    6          1900    2000  
BSC2-E1   17          1800    1900  
BSC2-E2   18          1760    1900   
BSC3-W1    7          1700    1740   
BSC3-W2   11          1900    2000  
BSC3-E1   19          1900    2000  
BSC3-E2   20          1900    2000  
BSC4-W1    9          1860    2000  
BSC4-W2   10          2000    2100  
-------------------------------------  
 
This setting is effective since run 190875</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Jan  4 22;42;30 comment by...Koji -->
and was effective until run 191943
<!-- Date: Tue Jan 4 22:38:01 2005 -->
Swapped out the PMT of BSC2-W2 with a spare PMT (#20). The number of replaced one is unknown (unless we check the mu-metal cover in the tunnel). Let's hope new data is better. The HV of the BSC2-W2 is set to 1600V (it was 2000V with the old PMT).
<!-- Author: Koji -->
<!-- Comment: Tue Jan  4 22;53;48 comment by...Koji -->
The number of the replaced old PMT is likely 38.
<!-- Date: Tue Jan 4 22:41:45 2005 -->
<pre>Several HV settings of BSC-2, 3 and 4 counters were changed since 
we took large amount of data with the previous settings and also  
we replaced the PMT of BSC2-W2. 
 
New voltrages are as follows;    
 
Counter   HVch#(cow)  HV(old) HV(new)   
-------------------------------------   
BSC2-W1    5          1600    1600   
BSC2-W2    6          2000    1600  &lt;-- new PMT 
BSC2-E1   17          1900    2000   
BSC2-E2   18          1900    2000    
BSC3-W1    7          1740    1840    
BSC3-W2   11          2000    2000   
BSC3-E1   19          2000    2000   
BSC3-E2   20          2000    2000   
BSC4-W1    9          2000    2000   
BSC4-W2   10          2100    2100   
-------------------------------------   
 
This setting is effective since run 191946. 
 
</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Jan  4 22;56;27 comment by...Koji -->
Forgot to mention. Checked the pedestals with the HV on and the pedestal and its RMS of BSC2-W2 were quite stable. Took QIE calibration (191945) with the new HV and downloaded the calibration into the ADMEMs.


<!-- Comment: Fri Jan 21 18;12;30 comment by...Koji -->
This HV setting was effective until run 192660, which is a QIE calibration run for the BSC (with HV on) taken after the access of Jan. 21st where the rest of old PMTs for BSC-2, 3 and 4 were replaced with the spares. See below for more details.
<!-- Date: Thu Jan 6 17:36:21 2005 -->
Tested RCA PMTs for BSC-2, 3 and 4 in the pit. We have now two PMTs #48 and #38; the #48 is a spare and not used before, while the #38 had been used in BSC2-W2 for a couple of years and removed in Jan. 4th access. Testing was done in two steps; 1) just wrap up the PMT,  supplying voltages to check background, 2) put a small (1" x 1" x 3/8") piece of BC-408 scintillator in the space of photocathode, wrap up the PMT, supplying voltages to see signals due to cosmics.<br> 
For #48 PMT, I could clearly see cosmic signals with a triangular shape of the pulse height above 20 mV (sometimes 40-50mV or even larger) at 1600 V. Without the scintillator, no clean signals were seen (except occasional discharge-like signals). For #38 PMT, the discharge-like signals were much more than the #48, and I did not see clean cosmic signals for the voltage up to 2000 V. This could be related to possible radiation damage on the #38 PMT.<p> 
In summary;<br> 
- #48 PMT is likely working ok<br> 
- #38 PMT could be working but it is much more inefficient than #48 
<!-- Author: Koji -->


<!-- Date: Sun Jan 9 20:10:58 2005 -->
In access of Jan. 9th, the PMT (#20) of BSC2-W2 which was installed in Jan. 4th access was swapped with another spare PMT #48. Turned the HV on upstairs and checked the signal with scope. No cosmic signal was seen for BSC2-W2, while the BSC2-W1 showed the signal. The PMT base was then swapped out with a spare (don't know the number but it has a label "BSC 4W-1"), then the BSC2-W2 showed the signal. (Note this combination of the PMT and the base is what was used when the PMT #48 was tested on Jan. 6th.) <p> 
The HV of BSC2-W2 is set to 1600 V. After the access the pedestal and QIE calibration (run 192187) was checked for all counters with HV on. They looked ok so the ADMEM calibration was downloaded.
<!-- Author: K. Terashi -->
<!-- Comment: Wed Feb  2 15;13;27 comment by...Koji -->
<table border=0><td><tr><td bgcolor=#e0e030>BSC2-W2 did not provide any signal between physics runs 192039 and 192169, and therefore these runs are marked bad in online bit.</td></tr></td></table>
<!-- Date: Wed Jan 12 11:34:00 2005 -->
<table border=0><td><tr><td bgcolor=#e0e030>New forward detector YMon codes have been used since run 191099 (where 6.0.0int3i version of online consumers were set to the default).</td></tr></td></table>
<!-- Author: Koji -->


<!-- Date: Wed Jan 12 15:41:39 2005 -->
Tested the PMT #20 (which was installed on Jan. 4th and removed on Jan. 9th) with two bases; one is what was used for BSC2-W2 and removed on Jan. 9th, and the other is a spare base (#34). Test was done in the same way as Jan. 6th test. Summary of the test is that the PMT and both bases look working ok. Cosmic signal was seen in any combination of the PMT and base. My guess is that the base used for BSC2-W2 might be flaky. We could better not use this base.
<!-- Author: Koji -->


<!-- Date: Thu Jan 20 16:33:15 2005 -->
QIE calibration of BSC, RP trigger and MiniPlug with HV ON was taken in run 192518 (after store 3929 was aborted) . The pedestals and calibration results look same as usual calibrations taken with HV OFF, and no failures were reported. No calibrations were downloaded this time.
<!-- Author: Koji -->


<!-- Date: Fri Jan 21 17:39:25 2005 -->
In access of Jan. 21st, all the rest of old PMTs for BSC-2, 3 and 4 counters were swapped out with new PMTs. Checked the new PMTs in situ with cosmics and they all showed nice signals. We might, however, need to address the following two counters:<p> 
1) BSC4-W2 counter looked very noisy initially, and it turned out that it had light leak at the connection of light guide and PMT. Put a piece of black tape. Noise was largely gone but it looked still noiser than other counters. The counter did show a clear cosmic signal.<br> 
2) BSC3-W1 counter (which we didn't swap the PMT in this access) did not show cosmic signals. This counter looks however working in data, though.
<!-- Author: K. Terashi -->


<!-- Date: Fri Jan 21 18:10:13 2005 -->
<pre>As of Jan. 21st (after the access), the list of PMTs used for  
BSC-2, 3 and 4 and their HV settings are as follows: 
 
--------------------------------------- 
Counter   PMT#        HV(old)   HV(new) 
          old -&gt; new 
BSC2-E1   38      8   2000      1700 
BSC2-E2   6      45   2000      1700 
 
BSC3-W2   39     16   2000      1700 
BSC3-E1   43     22   2000      1700 
BSC3-E2   33      3   2000      1700 
 
BSC4-W1   13      7   2000      1700 
BSC4-W2   ??(58)  2   2100      1700 
--------------------------------------- 
 
The PMTS of BSC2-W1, BSC2-W2 and BSC3-W1 were untouched in Jan. 
21st access. They are as follows: 
 
--------------------------------------- 
Counter   PMT#        HV(old)   HV(new) 
BSC2-W1   18          1600      1600 
BSC2-W2   48          1600      1600 
 
BSC3-W1   23          1840      1940 
--------------------------------------- 
 
These new HV settings are effective since run 192662, which is a  
QIE calibration run for the BSC with the new HV on. Pedestals and  
calibration results look fine for all counters and the calibrations  
were downloaded into ADMEM. 
</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Feb  1 19;38;14 comment by...Koji -->
This HV setting is effective until run 193095. The HV of BSC3-W1 was set to 1700 V from run 193096 after the PMT of the counter was swapped (see below).
<!-- Comment: Mon Feb  7 16;32;15 comment by...Koji -->
Sorry for confusing: this HV setting is correct until run 193416, EXCEPT BSC3-W1.
<!-- Date: Mon Jan 31 12:32:09 2005 -->
<table border=0><td><tr><td bgcolor=#e0e030>On January 24th, 2005 (during evening shift), we changed the setup of GAP triggers such that we are triggering only on BSC-1, by increasing the thresholds of BSC-2, 3 and 4 to the very high value (above the maximum of ADC range). This would bring the gap trigger rates to the pre- 2004 summer shutdown level, where the gap trigger decision was essentially made only on BSC-1, and would also allow us to set the thresholds of BSC-2, 3 and 4 offline. This was effective since run 192863 (store #3945).</td></tr></td></table>
<!-- Author: Koji -->



<!-- Date: Tue Feb 1 13:05:51 2005 -->
<pre>The HV of BSC-2, 3 and 4 were moved back to the CAEN (board in  
slot 6). Also, the RP trigger counters were moved from the board  
in slot 6 to that in slot 7. Below is the channel mapping and HV 
settings. The HV settings are not changed. 
 
Counter  Slot#   HVpin#  HVch#   HV  
---------------------------------------- 
BSC2-W1   6      28       8      1600  
BSC2-W2   6      34       9      1600      
BSC2-E1   6      40      10      1700      
BSC2-E2   6      46      11      1700      
BSC3-W1   6      52      12      1940      
BSC3-W2   6      58      13      1700      
BSC3-E1   6      65      14      1700      
BSC3-E2   6      73      15      1700      
BSC4-W1   6      32      16      1700      
BSC4-W2   6      38      17      1700      
  
RP-TRG1   7      44      18      1250      
RP-TRG2   7      50      19      1150      
RP-TRG3   7      56      20      1225      
---------------------------------------- 
</pre>
<!-- Author: Koji -->
<!-- Comment: Tue Feb  1 19;36;42 comment by...Koji -->
The PMT of BSC3-W1 was replaced in Feb. 1st access (see next entry). The HV of the counter was then set to 1700 V from run 193096. 
<!-- Comment: Mon Feb  7 16;30;29 comment by...Koji -->
This setting was corrent until run 193416.
<!-- Date: Tue Feb 1 19:35:37 2005 -->
Swapped out the phototube of BSC3-W1 counter with a spare in access 
of Feb. 1st. Checked the cosmic signal with scope in the tunnel and  
it looked good. The HV of BSC3-W1 was set to 1700 V after the  
access. BSC QIE calibration was taken with HV on (run 193096) and  
it was downloaded into the ADMEMs.<p> 
BSC3-W1: 1940 V --> 1700 V (from run 193096)  
<!-- Author: Koji -->
<!-- Comment: Mon Feb  7 16;33;26 comment by...Koji -->
BSC3-W1 HV was lowered to 1550 V since run 193417.


<!-- Date: Mon Feb 7 16:38:52 2005 -->
<pre>The HV of BSC-2, 3 and 4 were changed. The following setting is 
effective since run 193417. 
 
Counter  HVch#   HV(old)--&gt;HV(new) 
----------------------------------  
BSC2-W1   8      1600      1600V 
BSC2-W2   9      1600      1700V  
BSC2-E1  10      1700      1650V 
BSC2-E2  11      1700      1600V 
BSC3-W1  12      1700      1550V 
BSC3-W2  13      1700      1650V 
BSC3-E1  14      1700      1600V 
BSC3-E2  15      1700      1600V 
BSC4-W1  16      1700      1650V 
BSC4-W2  17      1700      1650V 
----------------------------------  
</pre>
<!-- Author: Koji -->
<!-- Comment: Fri Feb 18 17;17;46 comment by...Koji -->
This HV setting was effective until run 194076. The HV of BSC2-W2 was increased to 1800 V from run 194077. 


<!-- Date: Fri Feb 18 17:18:53 2005 -->
As commented in above entry, the HV of BSC2-W2 was set to 1800 V since run 194077. Others were unchanged.
<!-- Author: Koji -->
<!-- Comment: Mon Nov  7 12;07;45 comment by...Koji -->
<table border=0><td><tr><td bgcolor=#e0e030>The first good run after all the counter replacements and HV changes is 194146 (which was taken on Feb. 18, 2005 in store 3989).</td></tr></td></table>