Detector 5 anneal 2012

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Revision as of 02:10, 4 June 2014

2013 March 25: Detector 5 arced and then had an extended interval of high rates, which went on for about 1.5 hours before it quieted itself. The data from the noisy period was all at low energies. This is similar to a November 2011 anomaly that happened the same way, although that event did not quiet on its own. (Note that event was before the anneal.) In this case, no corrective action was taken at the time, although the HV will be dropped slightly in the near future. See Tohban Report 2013-03-27 for a more thorough description and plots illustrating the problem. LG

  14-147-16:56:26 /IDPUTABLE5 OFFSET=FRONTFASTDAC
  14-147-16:56:34 /IDPULOAD VALUE=0x30

2014 - Jun - 03: D5 front fast threshold increase to 0x40
- 2014-154-20:12:41 /IDPUTABLE5 OFFSET=FRONTFASTDAC
- 2014-154-20:12:52 /IDPULOAD value=0x40

post 2012 anneal	0x0C
2014-May-27 16:56:34 UTC	0x30 (was 0x22)

post 2012 anneal	0x30

post 2012 anneal	0x45

@@ Line 8: / Line 8: @@
 -147-16:56:26 /IDPUTABLE5 OFFSET=FRONTFASTDAC
 -147-16:56:34 /IDPULOAD VALUE=0x30
+* 2014 - Jun - 03: D5 front fast threshold increase to 0x40
+**2014-154-20:12:41 /IDPUTABLE5 OFFSET=FRONTFASTDAC
+**2014-154-20:12:52 /IDPULOAD value=0x40
 ===D5 front slow LLD threshold history===
@@ Line 21: / Line 25: @@
 |-
 | post 2012 anneal || 0x22
+|-
+| 2014 May 27 || 0x30
+|-
+| 2014 Jun 03 || 0x40
 |}