Log entry time 00:05:02 on April 4,2004

Entry number 81369

Quick summary:

• Shift schedule calls for production running all evening
  
• 40uA current on lh2 target, GMS on halfwave plate out
  
• Shifts begins with run 21130 underway
  
• Smooth running, except for a couple of target IOC crashes and one 20 min beam outage
  
• In all, a productive night
  
  

Details:

• 16:00--Start shift with run 21130 in progress.
  
• 17:44--target controller needed rebooting-beam off for about 8-10 mn
  
• 22:24--acc losses beam due to zone drop off beam expected back shortly
  
• 22:56--beam resumed begin run 21137
  
• 22:06-- run 21137 short - terminated due to spikes in FR electronics
  
• 00:00--shift ends, in all, a productive shift
  
  

Runs Taken:

• 15:30-16:30 Run 21130---LH2 production run, GMS on. 384k events.
  
• 16:32-17:28 Run 21131---LH2 production run. GMS on. 353k events.
  
• 17:30-18:28 Run 21132---LH2 production run. GMS on. 373k events. Note: beam was off for about 8 mins during this run to a reboot target computer
  
• 18:32-19:29 Run 21133---LH2 production run. GMS on. 366k events
  
• 19:32-20:33 Run 21134---LH2 production run. GMS on. 391k events
  
• 20:34-21:36 Run 21135---LH2 production run. GMS on. 395 k events
  
• 21:37-22:27 Run 21136---LH2 production run. GMS on. 305 k events. Run stopped due to loss of beam
  
• 22:56-23:05 Run 21137---LH2 production run. GMS on. 52 k events, short run terminated due to spikes in FR electronics
  
• 23:07-23:59 Run 21138---LH2 production run. GMS on.340k events