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ID Date Author Type Category Subject
  20   15 Nov 2019 00:15 Yi Wang   
  19   14 Nov 2019 09:02 Sam Hill   

TPC pressure: 32 mbar Recirculation pressure 39 mbar

Had some problems with the Chronobox today but issues seem to have been resolved.

MB on

LED's off

Gas pocket is off

  18   13 Nov 2019 09:53 Xiang Xiao   

18:54 TPC pressure 258 mabr, recirculation pressure 259 mbar 

MB off

LED on

Bubbler: 8.39V  511mA

Open Dewar Level: 55cm

  17   12 Nov 2019 23:46 Yi Wang   

08:41 TPC pressure 260 mbar, recirculation pressure 260 mbar

gas pocket ON

open dewar level: 50/120 cm

Bubbler 8.56V, 512mA

LED switched OFF

MB switched ON, Bias 65V

  16   11 Nov 2019 23:47 Yi Wang   

08:38 TPC pressure 238 mbar, recirculation pressure 242 mbar

gas pocket ON

open dewar level: 60/120 cm

Bubbler 8.56V, 512mA

LED switched OFF

MB switched ON, Bias 65V

  15   11 Nov 2019 11:28 Sam Hill   

20:30 TPC pressure 252 mbar, recirculation pressure 254 mbar

See DS Proto log for issues with chronobox

MB off

LED's on

Bubbler: 8.56V  510mA

Open Dewar Level: 60cm

  14   11 Nov 2019 00:00 Yi Wang   

08:45 TPC pressure 287 mbar, recirculation pressure 289 mbar, no bubble from gas pocket outlet, condenser is full

08:50 refill open dewar, open dewar level: 70/120 cm

Bubbler 8.56V, 512mA

LED switched OFF

MB switched ON, Bias 65V

  13   09 Nov 2019 23:55 Yi Wang   

08:55 TPC pressure 314 mbar, recirculation pressure 319 mbar, no bubble from gas pocket outlet

08:59 refill condenser, TPC pressure 225 mbar, recirculation pressure 221 mbar,

08:59 Gas Pocket status: ON

Open dewar level: 60/120 cm

Bubbler 8.56V, 512mA

LED switched OFF

MB switched ON, Bias 65V

  12   09 Nov 2019 11:02 Sam Hill   

20:07November 9, 2019

Switch On LED

Switch OFF MB

TPC pressure (mbar): 298

Recirculation pressure (mbar): 303

Open dewar level ( cm/120cm): 70

Bubbler: voltage (V): 8.56, current (mA): 516
 

  11   08 Nov 2019 23:13 Xiang Xiao   

08:16, November 9, 2019

TPC pressure (mbar): 225        

Recirculation pressure (mbar): 227

Gas pocket status (check from the camera) (ON/OFF): ON

Open dewar level ( cm/120cm): 50

Bubbler: voltage (V): 8.56, current (mA): 516

Switch OFF LED

Switch ON MB

Bias Voltage (V): 65

  10   07 Nov 2019 23:26 Yi Wang   

08:35 TPC pressure 315 mbar, recirculation pressure 310 mbar, no bubble from gas pocket outlet

08:29 refill condenser, TPC pressure 266 mbar, recirculation pressure 260 mbar,

08:30 Gas Pocket status: ON

Open dewar level: 55/120 cm

Bubbler 8.56V, 512mA

LED switched OFF

MB switched ON, Bias 65V

  9   07 Nov 2019 12:41 Yi Wang   

Evening checklist

  8   06 Nov 2019 12:33 Yi Wang    
  7   05 Nov 2019 11:14 Yi Wang   

Stop fast circluating, will let the cryogenic system run in slow circlulating mode over the night.

MB2 OFF, LED ON

  6   04 Nov 2019 07:08 Alex / Sam   

Normal mode channel by channel.

HV: on

LEDs: on

/home/dsproto/online/dsproto_sy4527

python3 iv_curve.py --no_steering --start_v 30 --stop_v 70 --step_v 0.2 --caen_readback_tolerance_v 2 --filename ivdata/ivcurve_191104_pdm(1-25).txt

ivcurve_191104_pdm(1-25).txt

Pressure very unstable due to periodic heating. Variations between 300-450mbarg.

  5   04 Nov 2019 06:59 Alex / Sam   

HV: off

LEDs: on

/home/dsproto/online/dsproto_sy4527

python3 iv_curve.py --no_steering --start_v 30 --stop_v 70 --step_v 0.2 --caen_readback_tolerance_v 2 --filename ivdata/ivcurve_191104_HVoff_LEDon.txt

ivcurve_191104_HVoff_LEDon.txt

  4   04 Nov 2019 06:45 Alex / Sam   

HV: off

LEDs: off

python3 iv_curve.py --no_steering --start_v 30 --stop_v 70 --step_v 0.2 --caen_readback_tolerance_v 2 --filename ivdata/ivcurve_191104_HVoff_LEDoff.txt

ivcurve_191104_HVoff_LEDoff.txt

  3   01 Nov 2019 19:06 Alex Kish   

Faster P increase (40 mbar/hour). Unstable presure (20 mbar RMS).

 

 

 

  2   01 Nov 2019 13:42 Alex Kish   

Faster P increase (40 mbar/hour). Unstable presure (20 mbar RMS).

 

 

 

  1   25 Oct 2019 11:45 Pierre-Andre Amaudruz   

If there is more things to say! 

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