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Testing log » History » Version 40

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Carrie McGivern, 12/11/2015 02:54 PM


Testing log

Dec 3ed

Ribbon cable is 8nc longer than twisted pair.

Common stop is 20ns later than ribbon cable with short delay (2nc).

Common stop is 35c later than ribbon cable signal with long delay cable (16nc).

threshold 20mv

Paddle unknown4 0-5-v (6th pair up) -1.8kv darkrate 48hz

Paddle u36 1-5-v -1.78kv darkrate 49hz

Combined darkrate 86hz

1. File Name: RWM_adc_tdc.txt Description: RWM is the trigger, only taking data from RWM, measured RWM signal both from ADC and TDC.
2. File Name: RWM_PMT.txt Description: Common stop trigger comes from either PMT. Contains TDC data for the two PMTs as well as the RWM. Gives ADC data for the PMTs. the PMT U36 is in channel 1 of the TDC and the PMT Unknown 4 is in channel 2 of the TDC. U36 is in channel 0 of the ADC and Unknown 4 is in channel 1 of the ADC.
3. File Name: Trigger_bothPMTs.txt Description: Common stop trigger comes from coincidence of both PMTs. Gives ADC and TDC data for PMTs U36 and Unknown 4. Gives TDC data for RWM signal. The PMTs and RWM correspond to the same channels as on RWM_PMT.txt.
4. File name: twopaddle_0-5-V_1-5-V_PED.txt pedestal

Dec 7th, 2015

channel 1: 0-4-v
channel 2: 1-4-v
channel 3: 0-5-v
channel 4: 1-5-v

Logic
A: 0-4-v
B: 1-4-v
C: 0-5-v
D: 1-5-v

Darknoise:
0-4-v: 36hz
1-4-v: 53hz
0-5-v: 40hz
1-5-v: 190hz

Coincidence of 4: 23hz
0-4-v and 1-4-v: 5hz
0-5-v and 1-5-v: 11hz

Dec 7, 2015

Experimenting with getting more of the pulses into the integration window for the ADC, we tried adding to paddle 0-4-v and extra 32 nsec delay (ADC 0). If we are happy with the results, we will likely repeat this for the other 3 paddles

1. File Name: Trigger_4PMTs_Run1.txt Trigger: coincidence of 4 PMTs OR RWM recorded Description: 4 paddle data
2. File Name: Trigger_4PMTs_ADCped1.txt Trigger: coincidence of 4 PMTs OR RWM recorded Description: 4 paddle PEDESTAL run with no inputs to ADC
3. File Name: Trigger_4PMTs_Run2.txt Trigger: coincidence of 4 PMTs OR RWM recorded Description: 4 paddle data
4. File Name: Trigger_4PMTs_Run3.txt Trigger: coincidence of 4 PMTs OR RWM recorded Description: 4 paddle data
5. File Name: Trigger_4PMTs_Run4.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data

Based on our offline analysis we decided to add 64 more nsec of delay to the common stop for the TDC

5. File Name: Trigger_4PMTs_Run5.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay

Dec 8, 2015
(PMTs OR RWM)
1. File Name: Trigger_4PMTs_Run6.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay
2. File Name: Trigger_4PMTs_Run7.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay
3. File Name: Trigger_4PMTs_Run8.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay
4. File Name: Trigger_4PMTs_Run9.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay

Dec 9, 2015
Beam down time

Dec 10, 2015
1. File Name: VW_00010_0001_4PMT_RAW_1512100000.txt
File Name: VW_00010_0002_4PMT_RAW_1512100000.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay
2. File Name: VW_00011_0001_4PMT_RAW_1512100000.txt
File Name: VW_00011_0002_4PMT_RAW_1512100000.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay

We have added 32 more nsec delay to each PMT signal. (72 nsec total for each PMT)

Change Discriminator threshold from -210mV to -300mV (as measured by the probe, there is a 10-1 scale, so this is really 30 mV threshold)

0-4-V in Discriminator channel 0, threshold -299.6mV
1-4-V in Discriminator channel 1, threshold -298.2mV
0-5-V in Discriminator channel 2, threshold -299.9mV
1-5-V in Discriminator channel 5, threshold -302mV

3. File Name: VW_00012_0001_4PMT_PED_1512100000.txt Trigger: coincidence of any one pair of PMTs OR RWM recorded Description: 4 paddle PEDESTAL run with no inputs to ADC
4. File Name: VW_00012_0002_4PMT_RAW_1512100000.txt Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay

Dec 11, 2015

1.File Name: VW_00012_0003_4PMT_RAW_1512110000.txt Trigger: Trigger: coincidence of 4 PMTs recorded Description: 4 paddle data extra 64 more nsec of delay