UMN CDMS Wiki archive
start › cdms › k100 › run_diary › 20120516

2012/05/16

0020 Fill N2 cold trap full.
0030 Reset timing link and restart DAQ, DCRC32 using port 5000.
0035 Thought I could catch the last bus home, but no… DAQ crashed. Again, lost connection to DCRC32. Cycled power on DCRC32. Start flashing detector.
Noted a couple of other DAQ problems:
  1. After changing biases in DetectorControl vi and writing to board, the boards return slightly different values. Have to repeat the process again in order for the correct values to be written to the boards.
  2. No matter how many times one tries to set Output Gain to 1, value 0 is written to board.
0055 Stop flashing detector.
0125 Revert to old version of DAQ. DCRC33 uses port 5000, DCRC32 uses port 5001. Restore timing link and start new data series: 07120516_0120 (D1 +4.0 V, D2 -4.0 V), 50/0.1/20 mins run/flash/wait.
1046 Momentarily removed (< 0.5 min) the Ba-133 source (thought that maybe Ba-133 source should have been put away in the morning regardless), but this was in between a data taking process.
1110 Stopped DAQ. Started liquid helium transfer (0.4%).
Filled N2 cold trap full.
1205 End LHe transfer (92.7%).
1300 Start flashing detector.
1625 Stop flashing detector.
1715 Start new data series: 07120516_1715 (D1 -4.0 V, D2 +4.0 V), 50/0.1/20 mins run/flash/wait.