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Message ID: 131     Entry time: 14 Nov 2019 04:03
Author: Yi/Edgar/Sam 
Type: Routine 
Category: General 
Subject: Noise data taking 

Run 1121 

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 50 V (lower than breakdown voltage) 

Number of events: 5k

 

Run 1122 

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 63 V

Number of events: 5k

Without blanket 

 

Run 1125

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 65 V

Number of events: 5k

Without blanket 

 

Run 1126

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 67 V

Number of events: 3.5k

trigger rate went down to 1 Hz, run was stopped manually

Without blanket 

 

Run 1127

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 67 V

Number of events: 2k

Without blanket 

 

Run 1128

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 67 V

Number of events: 5k

With blanket 

trigger rate went down to 1 Hz, run was stopped manually

problem with DAQ forced to restart manually 

Run 1129

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 67 V

Number of events: 5k

With blanket 

trigger rate went down to 1 Hz, run was stopped manually

problem with DAQ forced to restart manually 

jsroot_server stops from time to time 

1573739641 14:54:01.099 2019/11/14 [Logger,INFO] Client 'jsroot_server' on buffer 'SYSTEM' removed by cm_periodic_tasks because process pid 26693 does not exist

Run 1130

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 67 V

Number of events: 5k

With blanket 

 

Run 1131

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 65 V

Number of events: 5k

With blanket 

Run 1132

Gas pocket: OFF

Fields:  OFF

Threshold: external clock, 50Hz

Trace length: 1ms total, 600 us pre-trigger

Threshold extend:  5x16 = 80ns

TPC Pressure:  240 mbarg

SiPM HV: 65 V

Number of events: 5k

With blanket 

 

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