Detector 9

This page contains information about changes/issues for RHESSI detector 9 after the 2014 anneal. Detector updates from 2012-mid 2014 can be found here: Detector 9 anneal 2012

Notes

Detector 9 is SEGMENTED after the 2014 anneal!

• 2014 August 20: Due to sporadic noise in D9, the HV was dropped by 20 counts (now at 3600V). Commanding was at 20:57 UTC. This successfully quieted the noise. The noise was mainly fast counts, which cut drastically into the livetime.

D9 front slow LLD threshold history

post 2014 anneal

0x0C

D9 front fast LLD threshold history

post 2014 anneal

0x22

D9 rear slow LLD threshold history

post 2014 anneal

0x30

D9 rear fast LLD threshold history

post 2014 anneal

0x45

D9 HV history

post 2014 anneal	3995 V
2014-Aug-20	3603V (was 3995V)