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Testing log » History » Version 65

Mngqian Chen, 12/21/2015 01:57 PM

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h1. Testing log
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Dec 3ed
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Ribbon cable is 8nc longer than twisted pair.
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Common stop is 20ns later than ribbon cable with short delay (2nc).
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Common stop is 35c later than ribbon cable signal with long delay cable (16nc).
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threshold 20mv
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Paddle unknown4 0-5-v (6th pair up)   -1.8kv darkrate 48hz  
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Paddle u36 1-5-v  -1.78kv darkrate 49hz
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Combined darkrate 86hz
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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. 
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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                        
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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. 
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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. 
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4. File name: twopaddle_0-5-V_1-5-V_PED.txt     pedestal
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Dec 7th, 2015
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channel 1: 0-4-v
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channel 2: 1-4-v
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channel 3: 0-5-v
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channel 4: 1-5-v
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Logic 
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A: 0-4-v
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B: 1-4-v
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C: 0-5-v
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D: 1-5-v
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Darknoise:
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0-4-v: 36hz 
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1-4-v: 53hz
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0-5-v: 40hz
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1-5-v: 190hz
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Coincidence of 4: 23hz
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0-4-v and 1-4-v: 5hz
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0-5-v and 1-5-v: 11hz
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Dec 7, 2015
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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
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1. File Name: Trigger_4PMTs_Run1.txt    Trigger: coincidence of 4 PMTs OR RWM recorded Description: 4 paddle data
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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
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3. File Name: Trigger_4PMTs_Run2.txt     Trigger: coincidence of 4 PMTs OR RWM recorded Description: 4 paddle data
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4. File Name: Trigger_4PMTs_Run3.txt     Trigger: coincidence of 4 PMTs OR RWM recorded Description: 4 paddle data
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5. File Name: Trigger_4PMTs_Run4.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data
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Based on our offline analysis we decided to add 64 more nsec of delay to the common stop for the TDC
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5. File Name: Trigger_4PMTs_Run5.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data   extra 64 more nsec of delay
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Dec 8, 2015
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(PMTs OR RWM)
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1. File Name: Trigger_4PMTs_Run6.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data   extra 64 more nsec of delay
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2. File Name: Trigger_4PMTs_Run7.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data   extra 64 more nsec of delay
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3. File Name: Trigger_4PMTs_Run8.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data   extra 64 more nsec of delay
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4. File Name: Trigger_4PMTs_Run9.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data   extra 64 more nsec of delay
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Dec 9, 2015
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Beam  down time
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Dec 10, 2015
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1. File Name: VW_00010_0001_4PMT_RAW_1512100000.txt  
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    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
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2. File Name: VW_00011_0001_4PMT_RAW_1512100000.txt    
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    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
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We have added 32 more nsec delay to each PMT signal. (72 nsec total for each PMT)
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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)
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0-4-V in Discriminator channel 0, threshold -299.6mV
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1-4-V in Discriminator channel 1, threshold -298.2mV
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0-5-V in Discriminator channel 2, threshold -299.9mV
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1-5-V in Discriminator channel 5, threshold -302mV
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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
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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
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Dec 11, 2015
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1. File Name: VW_00012_0003_4PMT_RAW_1512110000.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data   extra 64 more nsec of delay (total 8+64=72 nsec)
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2. File Name: VW_00012_0004_4PMT_RAW_1512110000.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data   extra 64 more nsec of delay
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3. File Name: VW_00012_0005_4PMT_RAW_1512110000.txt    Trigger: coincidence of 4 PMTs recorded  Description: 4 paddle data   extra 64 more nsec of delay
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Dec 15, 2015
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1. File Name: VW_00013_0001_4PMT_RAW_1512150000.txt                     Trigger: RWM signal       extra 64 more nsec of delay (total 72 nsec)
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2. File Name: VW_00014_0001_4PMT_PED_1512150000.txt                      Pedestal run     
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                                                                                                                  Trigger: coincidence of any pair of the PMTs       change threshold to -350mv for channel 6 (the channel of RWM), add 34 nsec delay for PMTs    
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                                                                                                                  The gate of ADC comes from the gate generator(1.5 micro sec delay) and also comes from the coincidence of any pair of the PMTs
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                                                                                                                  The PMT signals are not plugged into the ADC channels                   extra 72 more nsec of delay (total 72+8=80 nsec )
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3. File Name: VW_00014_0002_4PMT_RAW_1512150000.txt                    Trigger: coincidence of any pair of the PMTs       change threshold to -350mv for channel 6 (the channel of RWM), add 34 nsec delay for PMTs    
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                                                                                                                 The gate of ADC comes from the gate generator(1.5 micro sec delay) and also comes from the coincidence of any pair of the PMTs        
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                                                                                                                 extra 72 more nsec of delay
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4. File Name: VW_00014_0003_4PMT_RAW_1512150000.txt                    Trigger: coincidence of any pair of the PMTs       change threshold to -350mv for channel 6 (the channel of RWM), add 34 nsec delay for PMTs    
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                                                                                                                 The gate of ADC comes from the gate generator(1.5 micro sec delay) and also comes from the coincidence of any pair of the PMTs        
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                                                                                                                 extra 72 more nsec of delay
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Dec 16, 2015
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1. File Name: VW_00014_0004_4PMT_RAW_1512160000.txt                    Trigger: coincidence of any pair of the PMTs      
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                                                                                                                 change threshold to -350mv for channel 6 (the channel of RWM), add 34 nsec delay for PMTs    
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                                                                                                                 The gate of ADC comes from the gate generator(1.5 micro sec delay) and also comes from the coincidence of any pair of the PMTs        
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                                                                                                                 extra 72 more nsec of delay
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2. File Name: VW_00014_0005_4PMT_RAW_1512160000.txt                    Trigger: coincidence of any pair of the PMTs       change threshold to -350mv for channel 6 (the channel of RWM), add 34 nsec delay for PMTs    
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                                                                                                                 The gate of ADC comes from the gate generator(1.5 micro sec delay) and also comes from the coincidence of any pair of the PMTs        
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                                                                                                                 extra 72 more nsec of delay
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3. File Name: VW_00015_0001_4PMT_RAW_1512160000.txt                    ADC Channel 0 seems broken. We took the signal of PMT1 to Channel 4 (A5).
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                                                                                                                 Trigger: coincidence of any pair of the PMTs      
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                                                                                                                 change threshold to -350mv for channel 6 (the channel of RWM), add 34 nsec delay for PMTs    
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                                                                                                                 The gate of ADC comes from the gate generator(1.5 micro sec delay) and also comes from the coincidence of any pair of the PMTs        
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                                                                                                                 extra 72 more nsec of delay
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Dec 17, 2015
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1. File Name: VW_00016_0001_4PMT_RAW_1512170000.txt                   Trigger: RWM        PMT1 is plugged in ADC channel 4
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2. File Name: VW_00017_0001_4PMT_RAW_1512170000.txt                   Trigger: RWM        PMT1 is plugged back to ADC channel 1
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3. File Name: VW_00017_0002_4PMT_RAW_1512170000.txt                   Trigger: RWM        PMT1 is plugged back to ADC channel 1
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                                                                                                                At the end of this run we plugged and unplugged of some cables
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4. File Name: VW_00018_0001_4PMT_RAW_1512170000.txt                  4 nsec cable from trigger to the gate generator. The gate generator has 2 micro sec delay, goes through 112 nsec delay cable (on the right of the rack)    to the ECL convertor.
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5. File Name: VW_00019_0001_4PMT_RAW_1512170000.txt                   change the delay from 2 micro sec to 1.5 micro sec
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6. File Name: VW_00020_0001_4PMT_RAW_1512170000.txt                   change the delay to 1.1 micro sec
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We have determined that with 0.5 nsec resolution the largest 12 bit time allowed is 2047.5 nsec. This is not enough for a delay lager than 2 micro sec. We are going to talk to Geoff about changing the resolution to 8 nsec. So we will have 32  micro sec.
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Dec 18, 2015
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1. File Name: VW_00020_0001_4PMT_RAW_1512170000.txt                    Trigger: coincidence of the PMTs                                              delay of the common stop is 1.1 micro sec
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2. File Name: VW_00020_0002_4PMT_RAW_1512180000.txt
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Dec 21, 2015
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1. File Name:VW_00020_0004_4PMT_RAW_1512210000.txt