M9sol Logbooks Solenoid Daily log
  Solenoid logbook, Page 6 of 15  ELOG logo
ID Date Author Operational Mode Subjectdown
  241   Wed Nov 28 15:07:08 2007 Kevin TrithardtOtherpower lead regeneration
Power leads cold again, power supply ramping up.
  176   Tue Oct 31 03:52:29 2006 Doug PreddyQuench Recoverypower lead quench at 2:30 this morning
Compressor still on. Starting flow to solenoid
  175   Thu Oct 26 14:14:57 2006 Doug PreddyQuench Recoverypower lead quench
solenoid tripped on power lead temp. I was here and caught it. System 
cooling.
  237   Fri Nov 23 08:35:37 2007 Doug PreddyNormal Runningpower lead problems
About 10 hours ago the power lead temperatures started to fluctuate and 
climb.
I cycled CV142 and the Temps have dropped and stablized.
  239   Mon Nov 26 09:45:43 2007 Doug PreddyNormal Runningpower lead problems
Power lead temperatures were rippling yesterday afternoon. I asked one of 
the operators to cycle CV142.
The temperatures were rippling again this morning, so I cycled CV142.
  75   Fri Oct 29 14:25:23 2004 Doug PreddyNormal Runningpower lead flows dropping
Flow is down to <190 mm. temps are starting to climb. Cycled HIC142
  76   Mon Nov 1 07:17:44 2004 Doug PreddyNormal Runningpower lead flow gone bad
power temps as follows:
LHE_IN 23
PL_POS 36
PL_NEG 31
Flow <90mm 
cycled HIC 142 off and on in 1/2 hour.
  229   Wed Oct 24 12:04:06 2007 Doug PreddyMaintenancepower lead and cryopump regeneration
Regenerating M9B:CP2 as temperature was up to almost 20k.
Shut off flow to power leads to allow them to warm up. The positive and 
negative temps were beginning to creep up.
Regeneraing the adsorber.
  251   Thu Jul 24 16:28:50 2008 Doug PreddyQuench Recoverypower bump
There was a power bump at ~15:00 today. All mseon hall cooling water went off. Compressor tripped. Main magnet went off. Restarted compressor after water pumps came back on. Started flow to the cold box. Compressor outlet pressure went >12 Bar and tripped of the compressor. Restarted again and am now cooling in parallel cold return. Solenoid ~25K.
  54   Wed Oct 6 07:57:01 2004 Doug PreddyStart Upparallel cold return
Switched to parallel cold return at 4:00 yesterday afternoon.
6:30 this morning started closing cv155 as temps had bottomed out at 24K.
  8   Wed Apr 21 06:39:17 2004 Doug PreddyStart Upover night
Changed to parallel cold mode at 9:30.
At about 4:30 the city water chiller was turned on. The air compressor had 
also tripped off. It was reset and restarted.
  185   Fri Jan 26 15:10:37 2007 Doug PreddyMaintenancenew control computer installed
I have installed a new control computer at the M9 solenoid control panel
  6   Tue Apr 20 07:06:41 2004 Doug PreddyStart Upmorning day 2
Temps in solenoid are equalling out. Increasing PIC229 to 11 bar. 
  90   Sun Dec 5 11:15:24 2004 Doug PreddyNormal Runningmore ripples
I loked at the power lead temps this morning. LHe_in 10.4-12.0  PL-Neg 8.0-
9.0  PL-Pos 9.8-10.4. Flows down to 160mm. Called Ops and got Danica to 
cycle CV142. Ripples and flow improved on the second try.
  153   Wed Aug 9 06:59:43 2006 Willy AnderssonQuench Recoverymore // cold return stuff
About 21:00 last night the solenoid temps had not changed much, pretty well 
flat lined. I guess my reducing CV155 stalled the cooling. Called Don 
Arseneau and asked him to increase CV155 to about 80% open. Temps slowly 
began to fall. Asked Don to look at graph of temps later in the night and 
if they fall down to a flat line to then reduce CV155 a bit to get the 
temps trending further down.

This morning CR_C1_ENT has fallen to a slightly upward trending flat line 
of about 12.7 K. Probably ready for switching to series mode by whoever 
gets to the system first this morning.
  147   Sat Jul 22 06:34:14 2006 ExperimentorQuench Recoverylooking good
Donald Arseneau reporting.

It is looking pretty good, so I came back in with the intent of energizing 
the magnet.  Doug should be up now or soon, so I'll wait a little for you 
to see this.  If you do, call the m9 counting room 222-7379.  After waiting 
a while, I will just forge ahead.
  66   Sat Oct 16 17:18:50 2004 Other lame
  244   Wed Apr 16 15:12:01 2008 Doug PreddyNormal Runninggraphs to load
There are three strip tools saved: coils powerlead startup
  226   Fri Oct 5 13:25:41 2007 Doug PreddyQuench Recoveryfunny graph
There was a fluctuation of the positive lead temp with no flow going to 
the power leads.
  278   Fri Apr 9 16:07:28 2010 Doug PreddyStart Upflow to power leads started
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