Detector 7 anneal 2012: Difference between revisions
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imported>Joliveros No edit summary |
imported>Lglesener m (moved Detector 7 to Detector 7 anneal 2012: As of the 2014 anneal, this is now old information, so it's being moved.) |
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14-147-16:57:00 /IDPULOAD VALUE=0x30 | 14-147-16:57:00 /IDPULOAD VALUE=0x30 | ||
* 2014 Jun 9: Since the attenuator logic is using G2 only, G7 front fast threshold was raised to see if that might allow G7 to be used again in the attenuator logic. | |||
14-160-17:01:04 /IDPUDUMPTABL TABLE=DIBTBL7 | |||
14-160-17:01:15 /IDPULOAD VALUE=0x40 | |||
===D7 front slow LLD threshold history=== | ===D7 front slow LLD threshold history=== | ||
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| 2014-May-27 16:57:00 UTC || 0x30 (was 0x22) | | 2014-May-27 16:57:00 UTC || 0x30 (was 0x22) | ||
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| 2014-Jun-09 17:01:05 UTC || 0x40 (was 0x30) | |||
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Latest revision as of 19:06, 25 August 2014
Notes
There was an arc that led to a long period of extended noise in D7. See Tohban_Report_2013-07-24 for details.
D7 HV was stepped down by 10 steps because of this. (HV adjustment was on July 24, 2013 (day 205) at 19:29:15 UTC). HV after the stepdown was ~3800 V. This made no change in the noise level. Update as of Aug. 7 2013: David has determined that the noise is not affecting D7 spectroscopy (although the calibration may have changed slightly), and livetime is not being significantly affected, so no further steps will be taken for now.
- 2014 May 27: G7 Front fast threshold was changed to 0x30.
14-147-16:56:42 /IDPUTABLE7 OFFSET=FRONTFASTDAC 14-147-16:57:00 /IDPULOAD VALUE=0x30
- 2014 Jun 9: Since the attenuator logic is using G2 only, G7 front fast threshold was raised to see if that might allow G7 to be used again in the attenuator logic.
14-160-17:01:04 /IDPUDUMPTABL TABLE=DIBTBL7 14-160-17:01:15 /IDPULOAD VALUE=0x40
D7 front slow LLD threshold history
| post 2012 anneal | 0x0C |
D7 front fast LLD threshold history
| post 2012 anneal | 0x22 |
| 2014-May-27 16:57:00 UTC | 0x30 (was 0x22) |
| 2014-Jun-09 17:01:05 UTC | 0x40 (was 0x30) |
D7 rear slow LLD threshold history
| post 2012 anneal | 0x30 |
D7 rear fast LLD threshold history
| post 2012 anneal | 0x45 |