Detector 2

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'''UPDATE IN PROGRESS'''
 
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This page contains information about changes/issues for RHESSI detector 2 after the 2014 anneal.  Detector updates from 2012-mid 2014 can be found here: [[Detector 2 anneal 2012]]
This page contains information about changes/issues for RHESSI detector 2 after the 2014 anneal.  Detector updates from 2012-mid 2014 can be found here: [[Detector 2 anneal 2012]]
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Detector 2 is UNSEGMENTED (no surprise there) following the 2014 anneal.
Detector 2 is UNSEGMENTED (no surprise there) following the 2014 anneal.
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* 2014-Aug-21  Due to noise in D2, the HV was lowered by 20 counts to 4117V at 2014-233-20:41:14 UT.  This was successfully in quieting the noise.
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* 2014-Aug-21  Due to noise in D2, the HV was lowered by 20 counts to 4117V at 2014-233-20:41:14 UT.  This was successful in quieting the noise.
* 2014-Aug-26: D2 is suffering a lot from the known light leak problem.  This does not affect the quality of the data but greatly reduces livetime at times when light leaks in through the cryostat port.  To alleviate this problem, the G2 front fast threshold was raised from 0x30 to 0x38 at 2014-238-19:22:56 UTC.  This didn't seem to fix the problem.
* 2014-Aug-26: D2 is suffering a lot from the known light leak problem.  This does not affect the quality of the data but greatly reduces livetime at times when light leaks in through the cryostat port.  To alleviate this problem, the G2 front fast threshold was raised from 0x30 to 0x38 at 2014-238-19:22:56 UTC.  This didn't seem to fix the problem.
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| GAP IN THRESHOLD VALUES - ADD IN LATER
| GAP IN THRESHOLD VALUES - ADD IN LATER
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| 2014-08-29 18:33:28 UTC || 0x40
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| 2014-08-29 19:22:56 UTC || 0x38 (was 0x30)
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| 2014-08-26 18:33:28 UTC || 0x40 (was 0x38)
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| post 2014 anneal || 4510 V
| post 2014 anneal || 4510 V
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| 2014-Aug-21 20:41:14 UTC || 4117V
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Revision as of 23:08, 4 September 2014

This page contains information about changes/issues for RHESSI detector 2 after the 2014 anneal. Detector updates from 2012-mid 2014 can be found here: Detector 2 anneal 2012

Contents

Notes

Detector 2 is UNSEGMENTED (no surprise there) following the 2014 anneal.

 14-241-18:33:28 /IDPUTABLE2 FRONTFASTDAC
 14-241-18:33:56 /IDPULOAD VALUE=0x40     ;Front fast from 0x38 to 0x40


D2 front slow LLD threshold history

post 2014 anneal 0x50

D2 front fast LLD threshold history

post 2014 anneal 0x30
GAP IN THRESHOLD VALUES - ADD IN LATER
2014-08-29 19:22:56 UTC 0x38 (was 0x30)
2014-08-26 18:33:28 UTC 0x40 (was 0x38)

D2 rear slow LLD threshold history

post 2014 anneal 0x30

D2 rear fast LLD threshold history

post 2014 anneal 0x45

D2 HV history

post 2014 anneal 4510 V
2014-Aug-21 20:41:14 UTC 4117V
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