<!-- Title: 07:48:28  Mon Aug 16 2004 -->
<!-- Crewchief: rr -->
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<pre>The FINAL week before the shutdown.... 
 
August 16th</pre>


<!-- Date: Mon Aug 16 07:50:54 2004 -->
<pre>Monday Morning 
 
Power was restored at kautz road at 8pm Sunday night.  The proper transfers of power were made shortly there after.  From then on, MCR ops have been trying to get back control of the complex and go into shot setup wtih the 110ma of beam in the accumulator.  This has been a struggle as they keep finding "one more thing".  Currently uncoalesced bunches in the TeV and they are stacking.  I would expect we go into shot setup shortly... 
 
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<!-- Author: rr -->


<!-- Date: Mon Aug 16 18:36:02 2004 -->
<pre>Monday Afternoon 
 
As of 6:30pm, the shot finally went in with an initial luminosity of 64e30.  Beam conditions were terrific at CDF and we got right in.  No problems at startup and so far data taking is going well. 
 
Commonwealth edison may get a failing grade for this weekends performance but EXCELLENT work by the Accelerator Folks and FESS for dealing with the situation and then recovering as quickly as they did.  Very impressive from my point of view. 
 
I would expect this store to stay in for of order 24 hours.</pre>
<!-- Author: RR -->


<!-- Date: Tue Aug 17 14:00:42 2004 -->
<pre>Tuesday Afternoon 
 
The store is still in!!!  We ran very well overnight.  We had one problem with a pcal crate (my guess is single event upset).  We had to power cycle and recalibrate.  That cost us about an hour.  Otherwise we ran flawlessly. 
 
This morning we started doing some trigger tests.  We started with Pulsar integration and then did some TDC timing work with the new firmware.  Ordinarily we would be doing these closer to end of stores but with a lost weekend and only a few stores left, we are trying to knock them off in the last few stores before the shutdown. 
 
This shot will be dropped sometime late this afternoon.  D0 needs a 2 hour access to fix some muon power supply.  We are currently running well and will not make an access. 
 
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<!-- Author: rr -->


<!-- Date: Wed Aug 18 10:47:25 2004 -->
<pre>Wednesday Morning 
 
We finished out yesturday's store running well.  Our efficiency on the day shift was down substantially because of all the trigger and TDC tests we needed to get in prior to the shutdown.  The pulsar guys really need beam data to check their system and we need to complete TDC timing tests -- we as a collaboration are going to have to decide on whether to spend 1 million dollars on Run IIb TDC's or whether the existing ones are good enough.   
 
Took a long time to get the next store in due to problems in the TeVatron.  Once the shot went in, it was a good one.  The initial luminosity was in the low 80's.  Losses were great and we took data for the first 4 hours without incident.  Then came the problems.  ISL chilled water started to warm up and it looks like we lost a shower max power supply on wedge 21East.  I think we can fix the chiller by adding freon.  The shower max will require a 1 hour access to swap supplies and test.   
 
Since this data is not good for physics with a big hole in the calorimeter, we are using time to test the parallel CSL logger upgrade to see if it works as well as a few other minor tests.  We are basically done with tests that require beam.  Hopefully we can get in when the store is dropped tomorrow morning and swap it.  After that, we will try to just run out the week with smooth data taking 
 
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<!-- Author: rr -->


<!-- Date: Wed Aug 18 20:18:28 2004 -->
<pre>Wednesday Evening 
 
Store is still in and we are running smoothly.  A reminder that the detector is still compromised with a bad shower max power supply.  We will go in tomorrow at 9am to replace provided the store lasts that long. 
 
Today we did a first (and second) beam test of a parallel CSL.  For those who have have forgot their intro course CDF 101, the CSL is the consumer server logger -- it takes the events that pass level 3 and delivers them where we want them (disk, mass storage etc).  The design specification for this system was 20megabytes/second.  The system actually exceeds this spec by a small amount.  However, at high luminosity, the CSL is the bottle neck with our current agressive trigger table strategy. There is work to re-engineer this system to get upwards of 60mbytes/sec.  That is still a  year away (at least).  Mako et al took the current system and parallelized it.  The hope being that we could go from 20 to say 30mbytes/sec which would be a big deal.  After two iterations, the system worked.  That is, they saw multiple slave logger processes created and each 
properly took care of the stream it was assigned to handle.  Since we were at low luminosity, we do not have a measure of how much it helps.  That will be the next step.  Never the less, this is very exciting news for the ops crew! 
 
 
</pre>
<!-- Author: rr -->


<!-- Date: Thu Aug 19 21:55:39 2004 -->
Thursday Evening 
 
Store was dropped this morning intentionally.  We made an access to repair our shower max power supply.  Thanks to Mike Lindgren for helping out again and again.  (this may cost me some venison steaks!)  TEV went into studies as planned.  However at 4pm,they lost the ramp.  A ground fault was detected.  I doubt its in a magnet -- given we were at 980GeV when it happened and we did NOT quench.  The problem is in F sector.  With that said, it is now 10pm and its still not isolated yet.   
 
We used the time to do endwall sourcing.   That is now done.   
 
We are on hold until the problem is solved.  No estimate yet... 
  
<!-- Author: rr -->


<!-- Date: Fri Aug 20 11:30:08 2004 -->
Friday Morning 
 
 
Ground fault hunt continues.  No estimate/plan until it is identified.   
 
We are trying to get plug sourcing done during this opportunity.  So far, that has not been going well.
<!-- Author: RR -->


<!-- Date: Fri Aug 20 19:23:21 2004 -->
<pre>Friday Evening 
 
Still no word from the TeV tunnel....  Plug sourcing is still ongoing.  No plan yet until we get word from MCR on the problem.</pre>
<!-- Author: rr -->


<!-- Date: Fri Aug 20 22:33:42 2004 -->
Friday Night 
 
Ground Fault is still out there....  Hunting to resume at 10am on Saturday.    
<!-- Author: RR -->


<!-- Date: Sat Aug 21 21:54:21 2004 -->
Saturday Night! ----   Most of Saturday was spent ground fault hunting.  By mid day the ground fault went away.  I have not spoken to the guys yet so I am not sure whether went away means disappeared or with the bigger supply, they burned it off after several m inutes.  Suffice it to say it looked good so TEV checkout ensued.  All systems go -- so shot setup with a stack of 150ma.  The shot went in at 70e30.  Losses looked reasonable!  There is still some life in the collider program.  We will try to get our final studies done early in this store to make sure they get done.  No plan has been announced yet.  I assume they would like to try this b2 unwind study if they can still pull it off.... 
  
<!-- Author: RR -->


<!-- Date: Sun Aug 22 08:34:29 2004 -->
Sunday Morning ---- 
 
We ran well overnight with relatively few problems. (read zero).  I did not check our efficiency because we spent the night doing alot of trigger table tests (phi gap, pulsar, and SVT).  All went well and will be beneficial once we come back from this shutdown. 
 
Plan is to keep this store in till 1pm -- then shoot again with the b2unwind algorithms installed.  If all goes well, the next store will stay in until 4am monday at which time the shutdown will begin!   
 
  
<!-- Author: RR -->