<!-- Title: 05:28:21  Tue Oct 28 2003 -->
<!-- Crewchief: No Operator -->
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Shutdown continues:<p> 
The project today is to power up the solenoid. We need to focus on that.


<!-- Date: Tue Oct 28 05:29:14 2003 -->
No unsusual alarms found so far.
<!-- Author: Bill Noe -->


<!-- Date: Tue Oct 28 06:23:49 2003 -->
<table border=0><td><tr><td bgcolor=#e0e030>Compressor #2 on Chiller #4 (outside) just blew a head gasket and the charge is gone. (I heard it go)</td></tr></td></table>
<!-- Author: Bill Noe -->


<!-- Date: Tue Oct 28 06:30:49 2003 -->
Found a couple of cryo setpoints off and put them right. Also turned on TM70 and fired up the cold cathodes. Cryo looks good. Left the dewar setpoint at 45%. 
<!-- Author: Steve -->


<!-- Date: Tue Oct 28 06:40:17 2003 -->
Gas readings taken all systems are running fine, Changed the helium bottle for the actuators.
<!-- Author: Bruce -->


<!-- Date: Tue Oct 28 06:57:06 2003 -->
Plugged in the vacuum sentry valve and we are now pumping on the adsorber.
<!-- Author: Steve -->


<!-- Date: Tue Oct 28 07:15:47 2003 -->
Found COT cold trap #1 not operating since yesterday afternoon. I don't think this is intentional, but I will check with Del first before starting it back up.
<!-- Author: Steve -->
<!-- Comment: Tue Oct 28 09;00;05 comment by...Steve -->
After talking to Del I started the precool on the cold trap. It should have been running.

<!-- Comment: Tue Oct 28 09;12;31 comment by...Steve -->
Precool done; trap is operating.


<!-- Date: Tue Oct 28 09:19:51 2003 -->
Wayne informs us he is working on a rack on the 2nd floor. Alarm is silenced.
<!-- Author: Steve -->
<!-- Comment: Tue Oct 28 13;00;43 comment by...Steve -->
Late note: unsilenced now.
<!-- Date: Tue Oct 28 10:45:45 2003 -->
Mark is taking down CDFS5 for upgrade. Informed control room. 
<!-- Author: Steve -->



<!-- Date: Tue Oct 28 13:46:42 2003 -->
The adsorber vacuum was 5 microns, so it is being cooled down and will be placed online this afternoon.
<!-- Author: Steve -->


<!-- Date: Tue Oct 28 16:24:45 2003 -->
Changed 4-mation, APACS and QUADLOG software from Process Suite 2.05 to Process Suite 3.01 service pack B.  All appears well except for some 4-mation crashes on CDFS4 that required rebooting the PC.  Siemens has been called.
<!-- Author: Sanders -->


<!-- Date: Tue Oct 28 15:27:41 2003 -->
Roser and I powered the solenoid to 1000 Amps earlier this afternoon.  We fast dumped the solenoid and the datalogger worked.
<!-- Author: Sanders -->


<!-- Date: Tue Oct 28 15:28:16 2003 -->
Solenoid powered to 3000 Amps.  
<!-- Author: Sanders -->


<!-- Date: Tue Oct 28 16:06:26 2003 -->
Fast Dumped solenoid at 3000 amps
<!-- Author: Sanders -->


<!-- Date: Tue Oct 28 19:08:49 2003 -->
<pre>So, here is what we have done with the solenoid 
 
After dumping the solenoid at 3k amps, I went through and looked at all the variables in the data logger.  First thing is that all are being read back at some level.  There are a few whose scale I don't understand at the moment.  Lacking any deep insight (my s.o.p), it looks like the astrodaq needs calibration.  However, I think I tried this before with no success so we may want to probe deeper.   
 
Given that, we powered the solenoid to full field with lots of pauses at each step.  We are currently at full field with no problems. 
 
Mike lindgren and I measured the deflection of the plugs vs field.  We worry more now tht we have a silicon baggie ring that the clearance is marginal between it and the plug.  We found the total motion to be 5/32 of an inch on each side.  A little more than an 8th of an inch.  That is fine.  Still buys as 1/4 inch at the worst spot. 
 
The one thing that still bothers me right now is that if I look at the superconducting leads, I see 38mv on lead A and 33mv on lead B.  Why?  I expect 37-38.  Why is lead b low?  What is that telling me? 
 
Plan is to leave it powered over night.  I will have the control room call me if there is a problem.  AT some convenient point in the next few days, I would like to get Walt J. over here and do parts of his "long checkout" where we inject a known amount of charge at various test points.  We can then look at the response and see if our controls are right or not.</pre>
<!-- Author: Sanders, Lindren and Roser (attorney at law) -->


<!-- Date: Tue Oct 28 21:07:14 2003 -->
<pre>Can someone look at frost on top of the storage dewar.  Looks like more than I remember.  </pre>
<!-- Author: rr -->


<!-- Date: Wed Oct 29 03:39:03 2003 -->
Set up COT cold trap to regenerate.  Assuming it completes the regeneration properly, it may be precooled and set to operate again.
<!-- Author: D. Allspach -->


<!-- Date: Wed Oct 29 03:47:49 2003 -->
<pre>Switched to Tank 3 from Tank 2. Tank 2 down to about 5 psig. Gas Supply Alarm had been silenced.  Took some gas from tank 1 to bring tank 2 back to about 30 psig.</pre>
<!-- Author: D. Allspach -->