Detector 1

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'''UPDATE IN PROGRESS'''
 
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This page contains information about changes/issues for RHESSI detector 1 after the 2014 anneal.  Detector 1 updates from 2012-mid 2014 can be found here: [[Detector 1 anneal 2012]]
This page contains information about changes/issues for RHESSI detector 1 after the 2014 anneal.  Detector 1 updates from 2012-mid 2014 can be found here: [[Detector 1 anneal 2012]]
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===Notes===
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=== Post 2014 Anneal ===
Detector 1 is SEGMENTED following the 2014 anneal (yay!)
Detector 1 is SEGMENTED following the 2014 anneal (yay!)
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* The rear fast threshold was changed on July 13 2015 due to dropping livetime in the rear:
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2015-194-16:33:58 /IDPUTABLE1 OFFSET=REARFASTDAC
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2015-194-16:34:12 /IDPLOAD VALUE=0x50 ; was 0x45
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* The rear fast threshold was changed on July 24 2015 due to low livetime.  However, the change probably wasn't needed; the tohban hadn't noticed that a change had already been made a few days ago.  The next tohban can reverse the change if desired.
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2015-205-17:18:59 /IDPUTABLE1 OFFSET=REARFASTDAC
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2015-205-17:19:08 /IDPLOAD VALUE=0x70 ; was 0x60
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* The rear fast threshold was changed on Sep 9 2015 due to low livetime.
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  2015-252-17:51:10 /IDPUTABLE1 OFFSET=REARFASTDAC
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  2015-252-17:51:17 /IDPLOAD VALUE=0x80 ; was 0x70
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* On October 8, 9, and 12, the rear fast threshold was raised three times to try and raise livetime.  Results still need to be assessed.
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2015-281-21:50:13 /IDPUTABLE1 OFFSET=REARFASTDAC
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2015-281-21:50:24 /IDPLOAD VALUE=0xA0 ; was 0x90
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2015-282-19:55:48 /IDPUTABLE1 OFFSET=REARFASTDAC
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2015-282-19:55:58 /IDPLOAD VALUE=0xB0 ; was 0xA0
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2015-285-21:51:28 /IDPUTABLE1 OFFSET=REARFASTDAC
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2015-285-21:51:37 /IDPLOAD VALUE=0xC0 ; was 0xB0
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* Also on October 12, the front fast threshold on D1 (and also D7) was raised.  This is to try and top off the livetime used in the attenuator logic.  It might not work, since the fast rates are not terribly high for this detector, in which case the change could be reversed by a future tohban.  Check this and see..
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2015-285-20:16:55 /IDPUTABLE1 OFFSET=FRONTFASTDAC
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2015-285-20:17:03 /IDPLOAD VALUE=0x50  ; was 0x40
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* On November 6, 7, 8. the rear fast threshold was raised three times to try and raise livetime. At 0xFF the live time is at 70%
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2015-312-06:16:29 /IDPUTABLE1 OFFSET=REARFASTDAC
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2015-312-06:16:52 /IDPLOAD VALUE=0xE0 ; was 0xD0
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2015-313-19:22:53 /IDPUTABLE1 OFFSET=REARFASTDAC
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2015-313-19:23:03 /IDPLOAD VALUE=0xF0 ; was 0xE0
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2015-314-18:55:49 /IDPUTABLE1 OFFSET=REARFASTDAC
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2015-314-18:56:05 /IDPLOAD VALUE=0xFF ; was 0xFF
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* 2015 December 14 lowered HV by 200 V in an attempt to reduce D1 rear, fast rates
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2015-348-18:19:00 /IHVDAC DETECTOR=1, VOLTAGE=176 ; 34-6.8 V
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* 2015 December 28 lowered HV by 200 V in an attempt to reduce D1 dead time
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2015-362-09:13:58 /ihvdac detector=1, voltage=166 ; Lowered G1 HV by 200V
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* 2016 January 13 lowered HV to 2500 V
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2016-013-21:20:47 /IHVDAC DETECTOR=1, VOLTAGE=129 ; 2500 V
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* 2016 January 27 lowered HV to 1500 V
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2016-027-20:16:13 /IHVDAC DETECTOR=1, VOLTAGE=77  ; 1500V from 2000V
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=== Post 2016 Anneal ===
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* March 18, 2016 - Turned off D1
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2016-139-18:53:32 /ihvdac detector=1, voltage=0
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2016-139-18:56:49 /idibpwroff value=1
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* 2016 April 27 (DOY 118):  Started turning on D1. HV reached 3995 V by April 29, ~03:40
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16-119-00:49:49 start ihv_ramp_stage1_g1_g4_g7 (HV = 0x0A, ~200 V)
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16-119-02:27:48 start ihv_ramp_stage2_g1_g4_g7 (HV = 0x33, 980 V)
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16-119-04:08:00 start ihv_ramp_stage3_g1_g4_g7 (HV = 0x67, 1985 V)
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16-120-00:22:16 start ihv_ramp_stage4_g1_g4_g7 (HV = 0x9A, ~3000 V)
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16-120-02:01:36 start ihv_ramp_stage5_g1_g4_g7 (HV = 0xB3, ~3500 V)
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16-120-03:41:12 start ihv_ramp_stage6_g1_g4_g7 (HV = 0xCE, 3995 V)
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* 2016 June 27-28: Turned on D1 again.  The final HV is 4000 V.  The front and rear counts looked good.  D1's front live time was around 98.6 % and the rear
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live time was about 97.8 % The last commanding was at DOY180-20:54 UTC.
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* 2016 July 4: D1 turned off to reduce temperature load.
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* 2017 January 26: D1 turned off.
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2017-026-16:00:18 /ihvdac detector=1, voltage=0 ; detector 1 off
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* 2017 April 3: Turned on in response to high solar activity. HV was raised to ~1000V at 16:25 and then up to ~2000V at 19:45 UT.
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* 2017 April 17: Events turned on in response to high solar activity. Adjustment of Front Fast and Rear Fast thresholds.
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2017-107-21:32:05 start ihv_ramp_stage2_g1 ; 1000 V
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17-107-23:09:42 start ihv_ramp_stage3_g1
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17-108-00:43:46 start idib_chg_thrshld(1, FRONT, FAST, 0x80)
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17-108-00:45:22 start idib_chg_thrshld(1, REAR, FAST, 0x60)
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* 2017 April 25: Front fast threshold increase, raised live time form 2% to 61%
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  2017-115-22:28:46 /IDPUTABLE1 OFFSET=FRONTFASTDAC
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  2017-115-22:28:56 /IDPULOAD VALUE=0x90 ; was 0x80
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* 2017 August 16: Front slow threshold increase, to cut low energy noise
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17-228-19:58:55 start idib_chg_thrshld(1,FRONT,SLOW,0x15)
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17-228-19:58:58 /IDPUDUMPTABL TABLE=DIBTBL1
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17-228-19:58:58 /IDPUTABLE1 OFFSET=FRONTSLOWDAC
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17-228-19:59:07 /IDPULOAD VALUE=0x15
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* 2017 November 3: Rear fast threshold increase to 0xFF
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17-307-16:33:21 start idib_chg_thrshld(1,rear,fast,0xFF) ; was 0x90
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17-307-16:33:25 /IDPUDUMPTABL TABLE=DIBTBL1
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17-307-16:33:25 /IDPUTABLE1 OFFSET=REARFASTDAC
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17-307-16:33:36 /IDPULOAD VALUE=0xFF
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===D1 front slow LLD threshold history===
===D1 front slow LLD threshold history===
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|-  
|-  
| post 2014 anneal || 0x0C
| post 2014 anneal || 0x0C
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|-
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| post 2016 anneal || 0x0c
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|-
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| 2017-Aug-16 || 0x15
|}
|}
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|-  
|-  
| post 2014 anneal || 0x22
| post 2014 anneal || 0x22
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|-
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| 2015-May-12 21:01:12 || 0x30 (was 0x22)
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|-
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| 2015-May-12 21:10:35 || 0x40 (was 0x30)
|-  
|-  
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| 2015-Oct-12 20:17:03 || 0x50 (was 0x40)
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|-
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| post 2016 anneal || 0x22
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|-
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| 2017-Apr-18 00:43:46 || 0x80
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|-
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| 2017-Apr-25 22:28:56 || 0x90 (was 0x80)
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|-
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| 2017-May-09 19:06:57 || 0xE0 (was 0xA0)
|}
|}
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|-  
|-  
| post 2014 anneal || 0x30
| post 2014 anneal || 0x30
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|-
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| post 2016 anneal || 0x30
|}
|}
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|-  
|-  
| post 2014 anneal || 0x45
| post 2014 anneal || 0x45
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|-
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| 2015-Jul-13 16:34:12 || 0x50 (was 0x45)
|-  
|-  
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| 2015-Jul-24 17:19:08 || 0x70 (was 0x60)
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|-
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| 2015-Sep-9 17:51:17 || 0x80 (was 0x70)
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|-
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| 2015-Sep-17 06:36:06 || 0x90 (was 0x80)
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|-
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| 2015-Oct-08 21:50:24 || 0xA0 (was 0x90)
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|-
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| 2015-Nov-06 06:16:52 || 0xE0 (was 0xD0)
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|-
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| 2015-Nov-07 19:23:03 || 0xF0 (was 0xE0)
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|-
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| 2015-Nov-08 18:56:05 || 0xFF (was 0xF0)
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|-
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| ?? || 0x50
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|-
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| 2017-Apr-18 00:45:22 || 0x60 (was 0x50)
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|-
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| 2017-May-09 20:43:44 || 0x90 (was 0x60)
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|-
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| 2017-Nov-03 16:33:21 !! 0xFF (was 0x90)
|}
|}
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|-  
|-  
| post 2014 anneal || 3995 V
| post 2014 anneal || 3995 V
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|-
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| 2015-Dec-14 18:19:00 UTC || 3407V
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|-
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| 2015-Dec-28 09:13:00 UTC || 3210V
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|-
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| 2016-Jan-13 21:20:47 UTC || 2500V
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|-
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| 2016-Jan-27 20:16:13 UTC || 1500V
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|-
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| post 2016 anneal || 3995 V
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|-
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| 2016-Jul-04 || 0V
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|-
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| 2017-Jan-26 || 0V
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|-
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| 2017-Apr-3 || 2000 V
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|-
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| 2017-Apr-11 || 0 V
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|-
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| 2017-Apr-18 || 2000 V
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|-
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| 2017-Jul-05 || 1500 V
|}
|}

Latest revision as of 18:38, 8 November 2017

This page contains information about changes/issues for RHESSI detector 1 after the 2014 anneal. Detector 1 updates from 2012-mid 2014 can be found here: Detector 1 anneal 2012

Contents

Post 2014 Anneal

Detector 1 is SEGMENTED following the 2014 anneal (yay!)

2015-194-16:33:58 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-194-16:34:12 /IDPLOAD VALUE=0x50 ; was 0x45
2015-205-17:18:59 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-205-17:19:08 /IDPLOAD VALUE=0x70 ; was 0x60
 2015-252-17:51:10 /IDPUTABLE1 OFFSET=REARFASTDAC
 2015-252-17:51:17 /IDPLOAD VALUE=0x80 ; was 0x70
2015-281-21:50:13 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-281-21:50:24 /IDPLOAD VALUE=0xA0 ; was 0x90
2015-282-19:55:48 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-282-19:55:58 /IDPLOAD VALUE=0xB0 ; was 0xA0
2015-285-21:51:28 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-285-21:51:37 /IDPLOAD VALUE=0xC0 ; was 0xB0
2015-285-20:16:55 /IDPUTABLE1 OFFSET=FRONTFASTDAC
2015-285-20:17:03 /IDPLOAD VALUE=0x50  ; was 0x40
2015-312-06:16:29 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-312-06:16:52 /IDPLOAD VALUE=0xE0 ; was 0xD0
2015-313-19:22:53 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-313-19:23:03 /IDPLOAD VALUE=0xF0 ; was 0xE0
2015-314-18:55:49 /IDPUTABLE1 OFFSET=REARFASTDAC
2015-314-18:56:05 /IDPLOAD VALUE=0xFF ; was 0xFF
2015-348-18:19:00 /IHVDAC DETECTOR=1, VOLTAGE=176 ; 34-6.8 V
2015-362-09:13:58 /ihvdac detector=1, voltage=166 ; Lowered G1 HV by 200V
2016-013-21:20:47 /IHVDAC DETECTOR=1, VOLTAGE=129 ; 2500 V
2016-027-20:16:13 /IHVDAC DETECTOR=1, VOLTAGE=77   ; 1500V from 2000V

Post 2016 Anneal

2016-139-18:53:32 /ihvdac detector=1, voltage=0
2016-139-18:56:49 /idibpwroff value=1
16-119-00:49:49 start ihv_ramp_stage1_g1_g4_g7 (HV = 0x0A, ~200 V)
16-119-02:27:48 start ihv_ramp_stage2_g1_g4_g7 (HV = 0x33, 980 V)
16-119-04:08:00 start ihv_ramp_stage3_g1_g4_g7 (HV = 0x67, 1985 V)
16-120-00:22:16 start ihv_ramp_stage4_g1_g4_g7 (HV = 0x9A, ~3000 V)
16-120-02:01:36 start ihv_ramp_stage5_g1_g4_g7 (HV = 0xB3, ~3500 V)
16-120-03:41:12 start ihv_ramp_stage6_g1_g4_g7 (HV = 0xCE, 3995 V)

live time was about 97.8 % The last commanding was at DOY180-20:54 UTC.


2017-026-16:00:18 /ihvdac detector=1, voltage=0 ; detector 1 off
2017-107-21:32:05 start ihv_ramp_stage2_g1 ; 1000 V
17-107-23:09:42 start ihv_ramp_stage3_g1
17-108-00:43:46 start idib_chg_thrshld(1, FRONT, FAST, 0x80)
17-108-00:45:22 start idib_chg_thrshld(1, REAR, FAST, 0x60)
 2017-115-22:28:46 /IDPUTABLE1 OFFSET=FRONTFASTDAC
 2017-115-22:28:56 /IDPULOAD VALUE=0x90 ; was 0x80
17-228-19:58:55 start idib_chg_thrshld(1,FRONT,SLOW,0x15)
17-228-19:58:58 /IDPUDUMPTABL TABLE=DIBTBL1
17-228-19:58:58 /IDPUTABLE1 OFFSET=FRONTSLOWDAC
17-228-19:59:07 /IDPULOAD VALUE=0x15


17-307-16:33:21 start idib_chg_thrshld(1,rear,fast,0xFF) ; was 0x90
17-307-16:33:25 /IDPUDUMPTABL TABLE=DIBTBL1
17-307-16:33:25 /IDPUTABLE1 OFFSET=REARFASTDAC
17-307-16:33:36 /IDPULOAD VALUE=0xFF


D1 front slow LLD threshold history

post 2014 anneal 0x0C
post 2016 anneal 0x0c
2017-Aug-16 0x15

D1 front fast LLD threshold history

post 2014 anneal 0x22
2015-May-12 21:01:12 0x30 (was 0x22)
2015-May-12 21:10:35 0x40 (was 0x30)
2015-Oct-12 20:17:03 0x50 (was 0x40)
post 2016 anneal 0x22
2017-Apr-18 00:43:46 0x80
2017-Apr-25 22:28:56 0x90 (was 0x80)
2017-May-09 19:06:57 0xE0 (was 0xA0)

D1 rear slow LLD threshold history

post 2014 anneal 0x30
post 2016 anneal 0x30

D1 rear fast LLD threshold history

post 2014 anneal 0x45
2015-Jul-13 16:34:12 0x50 (was 0x45)
2015-Jul-24 17:19:08 0x70 (was 0x60)
2015-Sep-9 17:51:17 0x80 (was 0x70)
2015-Sep-17 06:36:06 0x90 (was 0x80)
2015-Oct-08 21:50:24 0xA0 (was 0x90)
2015-Nov-06 06:16:52 0xE0 (was 0xD0)
2015-Nov-07 19:23:03 0xF0 (was 0xE0)
2015-Nov-08 18:56:05 0xFF (was 0xF0)
 ?? 0x50
2017-Apr-18 00:45:22 0x60 (was 0x50)
2017-May-09 20:43:44 0x90 (was 0x60)
2017-Nov-03 16:33:21 !! 0xFF (was 0x90)

D1 HV history

post 2014 anneal 3995 V
2015-Dec-14 18:19:00 UTC 3407V
2015-Dec-28 09:13:00 UTC 3210V
2016-Jan-13 21:20:47 UTC 2500V
2016-Jan-27 20:16:13 UTC 1500V
post 2016 anneal 3995 V
2016-Jul-04 0V
2017-Jan-26 0V
2017-Apr-3 2000 V
2017-Apr-11 0 V
2017-Apr-18 2000 V
2017-Jul-05 1500 V
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