<!-- Title: 15:46:21  Mon Oct 23 2006 -->
<!-- Crewchief: Willis+Peter -->
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<pre>Week of 23 October 2006</pre>


<!-- Date: Mon Oct 23 17:16:19 2006 -->
<p>The TeV separator conditioning during Sunday evening went well, and so 
   Moday&#39;s owl shift and part of the morning shift was spent doing 
   TeV studies. During a 14x0 store for TeV checkout, the TeV quenched 
   because the B4 He refrigerator had its cold compressor fail. The B4 
   refrigerator work was done at about 1400 hrs. We are expecting a store 
   in the evening shift, and with the available pbars (160e10), we 
   expect an initial luminsoity of about 100e30. We are ready for the 
   store. 
</p>  
<!-- Author: Willis+Peter -->


<!-- Date: Tue Oct 24 18:02:13 2006 -->
<p>Store 5019 starts at 1912 hrs, 23Oct06, with an initial luminosity of 
   101e30. For this first store after the Oct06 mini-shutdown, we are 
   running without the silicon. There were two separator sparks at D17 
   (one of the cells that sparked during conditioning) prior to halo 
   removal. The startup was quick, and there were no 
   problems with data taking. The abort gap counters,  B0PAGC and B0AAGC, 
   had zero output at the start because the HV to their PMTs tripped off. 
   This was fixed in an hour or so. Store 5019 ended at 0247 hrs, with a 
   quench at B46L (same as the previous 14x0 store). 
   We recorded 1.7 pb-1 at 95% efficiency.  
   The TeV B4 cold 
   compressor had to be replaced again, and in addition, there were 
   compressor <a href= 
'http://www-bdcryo.fnal.gov/cryoelog/cgi-bin/elog.pl?nb=CRII&action=view&page=307&anchor=03:05:56'>controls problems.</a> 
   This delayed the next shot until about 1230 hrs. The D17 separator was 
   also conditioned during this time. 
</p> 
<p>Store 5021 starts at 1500 hrs, with an initial luminosity of 173e30. 
   We again are running without the silicon. The abort gap counters, 
   B0PAGC and B0AAGC are again acting <a href= 
'/cgi/elog/elog.pl?nb=2006&action=view&page=796&frame=2&anchor=15:59:24.195'> 
  funny,</a> and this prompts the silicon SPLs to postpone the inclusion 
  of the silicon. Since the luminosity is above 150e30, we decide to 
  devote this store for special running with <a href= 
'http://www-cdf.fnal.gov/internal/physics/joint_physics/dEdX/'>dE/dx off</a> 
  for COT SL 1 and 2. Unfortunately, the store ends at 1663 hrs: TeV quench 
  at E1 due to some F-sector safety systems glitch.   
  We did get an hour 
  of dE/dx off running. 
</p>  
<!-- Author: Willis+Peter -->


<!-- Date: Wed Oct 25 18:05:11 2006 -->
<p>Store 5026 starts at 0223 hrs, with an initial luminosity of 127e30. 
   We were down for the first 2.5 hrs. A L1 cal trigger crate, 
   b0L1cl00 power supply failed, and it was replaced. About 1.5 hrs into 
   the store, the luminosity also dropped suddenly by 10%. The Tev elog 
   says there are no smoking guns, but the B17 separator is a <a href= 
'http://www-bd.fnal.gov/cgi-mach/machlog.pl?nb=tev06&action=view&page=241&anchor=070410'>suspect.</a> We started running again at about 0440 hrs. The silicon 
   was included at about 1000 hrs. The silicon DAQ is now operating with 
   3 VRB readout crates (L00/ISL VRB redistribution). The new trigger 
   table using the XFT stereo confirmation bit (L1 path) on the high Pt    CMX trigger was tested: It ran okay, and is now begin used to take 
   data. It will be declared as the official table at the start of the 
   next store. We will make a 1 hour controlled access at the end of this 
   store to fix BMU TDC readout cable swaps - the data is being marked bad. 
</p>  
<!-- Author: Willis+Peter -->


<!-- Date: Thu Oct 26 19:13:04 2006 -->
<p>Store 5026 is terminated normally at 2103 hrs, 25Oct06.. We recorded 
   2.4 pb-1 at 67% efficiency. This low due to the 2.5 hr down time to replace 
   a L1 trigger crate power supply that failed. We went in on a short 
   controlled access and fixed a BMU <a href= 
'/cgi/elog/elog.pl?nb=2006&action=view&page=800&frame=2&anchor=22:19:03.385'> 
   problem.</a> Store 5028 starts at 0336 hrs, with an initial luminosity 
   of 158e30. We ran well for the first 40 minutes or so. Then COT SL4 
   started having HV problems. We were down for about 2.7 hrs. There were 
   also plug HV problems in the same period. The COT SL4 problem is in 
   quadrant 3, and the voltage had to be lowered (the XFT was compensated). 
   We ran reasonably well after that, unitl 1634 hrs, when Store 5028 
   was lost. There was a quench at B1 and D4, due to a TeV safety systems 
   <a href= 
'http://www-bd.fnal.gov/cgi-mcr/elog.pl?nb=2006&action=view&page=810&anchor=164850'>failure.</a> 
   This is similar to the Store 5021 loss. There were no quench related 
   problems. For store 5028, we recorded 2.4 pb-1 at 65% efficiency. 
   We went in on controlled access for an hour, to fix some collateral 
   BMU <a href= 
'/cgi/elog/elog.pl?nb=2006&action=view&page=803&frame=2&anchor=19:02:29.245'> 
   damage</a> from last evening&#39;s access and to look at a silicon 
   ISL IB5W1 bias <a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=324&frame=2&anchor=18:28:59'>problem.</a> 
</p>  
<!-- Author: Willis+Peter -->
<!-- Comment: Fri Oct 27 14;28;28 comment by...Willis -->
Store 5028 is a 36x32 store, as the last pbar batch was lost due
to Recycler RF problems.


<!-- Date: Fri Oct 27 17:25:03 2006 -->
<p>Store 5030 starts at 2232 hrs, 26Oct06, with an initial luminosity of 
   131e30. We have been running rather well from the beginning. There has 
   only been a minor down time of about 20 minutes due to a problem 
   SVX ladder (SB2W9L4), and it happened when the luminosity was low, 
   about 40e30. At 1706 hrs, we have recorded 3.8 pb-1 at 91% efficiency. 
   Store 5030 is scheduled for termination at 2200 hrs. The next store 
   should have an initial luminosity of about 160e30. 
</p>  
<!-- Author: Willis+Peter -->


<!-- Date: Mon Oct 30 17:34:22 2006 -->
<p>Weekend Summary: 28-29 October 2006 
<ul> 
<li>Saturday, 28Oct06. Store 5030 is terminated normally at 2203 hrs, 
    27Oct06. We recorded 4.3 pb-1 at 91% efficiency. Store 5031 starts 
    at 0036 hrs, with an initial luminosity of 161e30. The startup was 
    quick, and we ran quite well. At 0948 hrs, we were down for 0.5 hrs 
    for the power cycling of b0pcal02 because the +5V supply shut down. 
    This is the first test of the 
    new run control code that reloads the shower max readout card&#39;s 
    calibration look-up table. It worked.</li> 
<li>Sunday, 29Oct06: Store 5031 spun until 0543 hrs, when it was normally 
    terminated. We ran smoothly over the 2nd half of the store. We 
    recorded 6.2 pb-1 at 90% efficiency. It seems this store has taken 
    us over the 2000 pb-1 delivered mark. The next store at around 
    1200 hrs had 290e10 
    pbars loaded, but the TeV quenched during the squeeze. The A11U 
    and low beta BA and BB quenched. The TeV was not quite ready for 
    such large amounts of protons and pbars and some tuning and changes 
    were done in the studies that followed. 
    We had no problems with the silicon. 
    Store 5037 started at 2349 hrs, with an initial luminosity of 133e30. 
    Running was not as smooth as in store 5031, but still rather good. 
    The only significant down time was 15&#39; from a CLC/CPR HV PC 
    problem. Store 5037 ended with a quench at E4 at 0734 hrs, 30Oct06. 
    It was due to a vaccuum problem with the E4 refrigerator. We 
    recorded 2.0 pb-1 at 84% efficiency. There were no silicon problems 
    from this quench. 
</ul> 
</p>  
<!-- Author: Willis+Peter -->