FPP Log of Cosmic Runs
As of 8/15/96 the hadron arm consists of
1st scintillator array (5 paddles) (Fifth added 8/12/96)
2nd scintillator array (6 paddles)
1st FPP chamber
2nd FPP chamber
*****
Data is stored on /adaq2/data3/atrig/data/scint_hadron_####.dat
*****
c1 th and c2 th are thresholds on chambers 1 and 2 at the supply.
The voltage at the boards is 1/150 of that.
*****
c1 gas and c2 gas are the input flow in arbitrary unit.
*****
DATE  RUN   Trigger  U1 hv  V1 hv  U2 hv  V2 hv  C1 th   c2 th  c1 Gas  c2 gas Events
----  ----  -------  -----  -----  -----  -----  ------  -----  ------  ------ ------
8/7   1833   open    1714   1731   1699   1727    4.0     4.0    30      30    133,528
8/9   1884   1to1    1680   1680   1680   1680    4.0     4.0    30      30     33,948
8/13  1906   open    1650   1650   1650   1650    3.0     3.0    30      30    131,218
8/15  1914   open    1700   1700   1700   1700    6.0     6.0    40      40    130,857
8/20  1981   open    1700   1700   1700   1700    7.0     7.0    40      40    127,366
*** in RUN 1981 HV for Chamber 1 PLane V Modules 4-7 tripped off  *** 
8/23  1996   open    1700   1700   1700   1700    4.0     4.0    30      30    134,679
**** 9/7 Change gas flow thru chambers
9/9   2010   open    1700   1700   1700   1700    2.0     2.0    30      30    391,078
***  afternoon of 9/7 changed trigger to include S1pad5.
9/10  2012   open    1650   1650   1650   1650    2.0     2.0    30      30    249,426
9/11  2023   open    1700   1700   1700   1700    2.5     2.5    30      30     14,178
9/11  2024   open    1675   1675   1675   1675    2.5     2.5    30      30     12,142
9/11  2025   open    1650   1650   1650   1650    2.5     2.5    30      30     12,000
9/11  2026   open    1625   1625   1625   1625    2.5     2.5    30      30     12,000
9/12  2027   open    1675   1675   1675   1675    2.5     2.5    30      30    206,104
9/12  2030   open    1675   1675   1675   1675    4.5     4.5    30      30     17,883
9/12  2031   open    1675   1675   1675   1675    6.5     6.5    30      30     17,000
9/12  2032   open    1675   1675   1675   1675    3.5     3.5    30      30     24,225
9/12  2033   open    1725   1725   1725   1725    2.5     2.5    30      30     14,165
9/12  2034   open    1750   1750   1750   1750    2.5     2.5    30      30      9,405
**** 9/13 VDC installed
**** 9/19 Placed 1/4'' shim along top rail of chamber 1. See WWW Sept 19 FPP meeting minutes.
**** 9/19 Start writing data to /adaq2/data5/atrig/data/hadron_####.dat
9/20  2061   1to1    1700   1700   1700   1700    2.5     2.5    30      30     20,000
**** 9/20 In afternoon start flowing Ar/ethane 60/40 through all chambers
9/24  2086   open    1950   1950   1950   1950    2.5     2.5    30      30    244,050
*** In run 2086 VDC doesn't seem to work. C1V8-10 tripped. C1V4-7 has HV=1900.
9/25  2110   1to1    1775   1775   1775   1775    2.5     2.5    30      30     39,618
9/27  2146   open    1775   1775   1775   1775    2.5     2.5    20      20    ~13,000
9/27  2147   open    1800   1800   1800   1800    2.5     2.5    20      20    ~13,000
9/27  2149   open    1800   1800   1800   1800    2.5     2.5    20      20      6,423
9/27  2151   open    1825   1825   1825   1825    2.5     2.5    20      20      7,418
9/27  2152   open    1850   1850   1850   1850    2.5     2.5    20      20      3,278
*** Rear chambers are taking data while sitting next to space frame 10/14********
*** 10/14 gas is ar/co2 85/15   ***
*** 3 paddles on top, one neutron bar bottom
*** mlu_s3n is the trigger for the rear chambers, OR of top 3 and botton bar
*** threshold at supply. (Remember rear 1/300 ratio) 
Date  Run   Trigger  HV     Thres.	Gas	events	comments
10/14 2206  mlu_s3n  0      8.0         50       2,148
10/14 2207  mlu_s3n  1900   9.0         50     127,273
10/14 2208  mlu_s3n  1925   7.0         50    ~200,000 
10/15 2209  mlu_s3n  1925   5.5         50      27,497
10/15 2218  mlu_s3n  1900   5.8         30     354,861	bad X (#245+) wires (effect X plane effic.)	
10/16 2224  mlu_s3n  1930   5.2         30      50,011  noisy X wire RO board unplugged
							bottom scint in -X position (as was for all
							previous runs)
10/16 2225  mlu_s3n  1930   5.2         30      40,061  noisy X wire RO board unplugged
							bottom scint. in +X position
10/16 2227  mlu_s3n  1920   6.2         30      62,420  *noisy X wire RO board unplugged
							*bottom scint perp. to +X straws
							a few X wires are "hot"
10/16 2229  mlu_s3n  1975   5.0		30	11,595	"*" still apply
							"hot" X wires gone

10/17 2230  mlu_s3n  1976 1976 1970 1952 1970 1970   6.0  30   164,078
10/22 2262  mlu_s3n pulser th=6.0 V pamp=5.0 V wire=1->8 ~1,000 events each wire
10/22 2263  mlu_s3n pulser th=6.0 V pamp=9.0 V wire=1->8 ~1,000 events each wire
10/22 2265  mlu_s3n pulser th=6.0 V pamp=7.0 V wire=1->8 ~1,000 events each wire
10/22 2284  mlu_s3n pulser th=6.0 V pamp=6.0 V wire=1->8 ~1,000 events each wire
10/22 2285  mlu_s3n pulser th=6.0 V pamp=5.0 V wire=1->8 ~1,000 events each wire
10/22 2286  mlu_s3n pulser th=6.0 V pamp=5.0 V wire=1->8 ~1,000 events each wire   pulser noise fixed

10/23 2291  mlu_s3n pulser th=7.0 V pamp=6.5 V "     "      "     "     "     "
10/23 2292  mlu_s3n pulser th=7.0 V pamp=6.5 V "     "      "     "     "     " "X" pulser cable moved
                                                                                best data yet! :)
10/25 2244  mlu_53n pulser th=7.0 v pamp=6 .5v"      "      "     "     "     "improvements" on test pulse cable
10/25 2296  mlu_53n pulser th=7.0 v pamp=6.5  "      "      "     "     "     Removed "improvements" on test pulser
10/25 2299  mlu_53n pulser th=7.0 v pamp=6.5  "      "      "     "     "     inserted a 16 K resistor package at front5 of test pulser cabler
10/25 2300  mlu_53n pulser th=7.0 v pamp=6.5  "      "      "     "     "     used HV boards at test pulse cable input
10/25 2303  mlu_53n  pulser th=7.0 v pamp=6.5  "      "      "     "     "     tied the pulser cable seperately to avoid noise
10/25 2304  mlu_53n  pulser  th=7.0 v pamp=6.5 "      "      "     "     "    Reversed the pulser cable input and end

DATE   RUN #  EVENTS  HV		    THRESHOLD	   COMMENTS
                                            (@ supply)
02-DEC  5165   10200  17.0 - 17.11 = 1825v  C1, C2 = 2.5v
		      18.0 - 18.5  = 1875v  C3     = 5.0v

02-DEC  5166   10200  17.0 - 17.11 = 1825v  C1, C2 = 2.5v
                      18.0 - 18.5  = 1925v  C3     = 5.5v 
			
02-DEC  5168  101000  17.0 - 17.11 = 1825v  c1, c2 = 2.5v
                      18.0 - 18.5  = 1925v  c3, c4 = 6.0v
                      ch 4         =~1900v
 
03-DEC  5178    1200  ch3 & 4 at 1925 V     ch3 & 4 at 6.0v

03-DEC  5179    1200  ch3 & 4 at 0v         ch3 & 4 at 6.0v

03-DEC  5180    1200  ch3 & 4 at 0v         ch3 & 4 at 0.0v  LV power off for
                                                             ch3 & 4
**** Do tests with pulser for chamber 4
10-DEC  runs 5231 to 5238 has wires 1-8 with pulser voltage = 2V and Threshold = 6.5
*** Do pulser test for chamber 3
10-DEC  runs 5239 to 5246 has wires 8-1 with pulser voltage = 2V and threshold = 5.0
*** Do cosmic run (crashed in middle of run) events = 23,000 (about)
10-DEC  run 5247  Chambers 1 & 2 at HV=1825 and Threshold = 2.5V 
                  Chambers 3 & 4 at HV=1900 and threshold = 5.0V 
		  except for chamber 4 HV cables 3 and 5 set to HV = 0
                  VDC and scintillators ON
****
13-DEC  pulser test for chamber 4 pulser amplitude 1.5V threshold = 6V
        runs 5274-5281 wires 4,5,6,7,8,1,2,3
****** 
15-DEC  run 5283  241479 events  threshold 2.5/front 5.0/rear 
                                 HV        1825/front  1900/rear
***
16-DEC run 5285   265161 events  threshold 2.5/front 5.5/rear
                                 HV        1825/front  1900/rear
*****

19-JAN-97  Run 5297  351949 events  HV  1825/front  1900/rear
	   "Chamber 3 2x purge rate test"

19-JAN-97  Run 5299  127068 events  same HV/thres as run 5297
	   "Chamber 3 "really high flow" purge test (3/4 of full small
	    bottle or pre-mixed gas in < 6 hours!!!). Run stopped AFTER
	    bottle was empty, so we need to cut out some events from the
	    end of the run.

20-JAN-97  Run  5305 1000 events chamber 3 channel 1 pulser run
	        5307    "			   2	
		5308	"			   3
		5309	"			   4
		5310	"			   5
		5311	"			   6
		5317	"			   7
		5318	"			   8

26-FEB-97  Run  5504 ??? events (overnight run...so prob 100K+)
                ch 1 & 2: off
		ch 3 HV 1900 thres 5.0
		ch 4 HV 1925 thres 5.0
09-MAR-97 Coincidence runs hadron magnets kept constant
RUN  HV CH1&2  Thres CH1&2  HV CH3&4  Thres CH3&4
---  -------   ----------  ---------  -----------
5812 1825      3.5          1900       7.0          100365 events
5813 1800      3.5          1875       7.0           84490
5814 1850      3.5          1925       7.0           90096
5815 1775      3.5          1850       7.0           98115
5816 1875      3.5          1950       7.0          107125
5817 1825      2.5          1900       5.0           98513
5818 1825      3.0          1900       6.0          154778
5819 1925      4.0          1900       4.0            ??

14 - 16 March 1997 first FPP development run magnets constant, singles+coincidences
HVfront=1850 HVrear=1900 Thresfront=3.5 Thresrear=7.0
RUN	events     analyzer     comment
------- -------    --------    ---------
5862      350K      none
5863      100K      none
5864        0       none
5865      691K      none
5866      737K      none
5867      150K      none
5868      230k      none
5869      390K      none
5870      455K      none
5871      380K      none
5872      402K      none
5873      238K      none
5874      413K      none
5875      527K      none
5876      530K      none        events estimated
5877      100K      none        events estimated
5878      126K      none
5879        0       none
5880      477K      none
5881      470K      none
5882        0       none
5883        0       none
5884        0       none         
5885      280K      none         chambers 3 and 4 misaligned, events estimated
5886      280K      none         chambers 1 and 3 misaligned, problems ch. 4 LV
5887       25K      none         chambers 1 and 3 misaligned
5888       20K      none         all chambers in standard position
5889       10K      none         Q1 electron arm quenched,  electron arm off 
5890        0       none         electron off in this and future runs
5891        5K      3 in.
5892        0       3 in.
5893      579K      3 in.
5894       25K      3 in.         events estimated
5895       54K      3 in.
5896      350K      3 in.
5897      450K      3 in.         events estimated
5898      450K      3 in.
5899      450K      3 in.         events estimated, Q3 tripped off
5900      450K      3 in.         events estimated
5901        0       3 in.
5902      487K      3 in.
5903      193K      3 in.
5904      530K      3 in.
5905      427K      3 in.
5906                3 in.


5866      737K