Difference between revisions of "HRRL 7-31-09"
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| Line 108: | Line 108: | ||
|TDC Histogram | |TDC Histogram | ||
|- | |- | ||
| − | | 1296 || 2 || 0.8 || 1400:-700:980 || 50 || [[File:TDCSpectrum_1296.gif|200px]] [[File:TDCSpectrum_1296_1.gif|200px]] | + | | 1296 || 2 || 0.8 || 1400:-700:980 || 50 || [[File:TDCSpectrum_1296.gif|200px]][[File:TDCSpectrum_1296_1.gif|200px]] |
|- | |- | ||
| − | | 1297, 1298 && 1299 || 4 || 0.8 || 1400:-700:980 || 50 || [[File:TDCSpectrum_1297_8_9.gif|200px]] | + | | 1297, 1298 && 1299 || 4 || 0.8 || 1400:-700:980 || 50 || [[File:TDCSpectrum_1297_8_9.gif|200px]][[File:TDCSpectrum_1297_8_9_1.gif|200px]] |
|- | |- | ||
| − | | 1304 && 1305 || 4 || 0.2 || 1400:-700:980 || 50 || [[File:TDCSpectrum_1304-1305.gif|200px]] | + | | 1304 && 1305 || 4 || 0.2 || 1400:-700:980 || 50 || [[File:TDCSpectrum_1304-1305.gif|200px]][[File:TDCSpectrum_1304-1305_1.gif|200px]] |
|- | |- | ||
| − | | 1306 || 2 || 0.8 || 1400:-700:980 || 50 || [[File:TDCSpectrum_1306.gif|200px]] [[File:TDCSpectrum_1306_1.gif|200px]] | + | | 1306 || 2 || 0.8 || 1400:-700:980 || 50 || [[File:TDCSpectrum_1306.gif|200px]][[File:TDCSpectrum_1306_1.gif|200px]] |
|} | |} | ||
Revision as of 22:49, 5 August 2009
Default HRRL running Conditions
| Pulse Width | Rep Rate | Energy | |
| 8 mA | 100 ns | 1 Hz | 3 MeV |
cable names
| CH ID | Description |
| 2223A1 | Front Scintillator |
| 2223A2 | Rear Scintilaltor |
| 2223A3 | ADC Gate From counting house to Experimental Cell |
| 2223A4 | TDC start pulse from counting house to experimental cell (PMT front + beam Gate) |
| 2223A5 | Coincidenc between front + rear Scint + Gun pulser to scaler channel 8 |
| 2223A6 | Metalica sense wire 4 |
| 2223A7 | Delayed rear PMT pulse to ADC |
| 2223A8 | Plastica sense wire 4 |
| 2223A9 | Plastica to scaler channel 4 |
| 2223A10 | Front scintillator to ADC |
| 2223A11 | Metalica scaler channel 1 |
| 2223A12 | DAQ trigger |
DAQ Ntuple names
| Ntuple Variable | Description |
| ADC5 | Front Scintilator |
| ADC1 | Metalica sense wire 4 |
| ADC16 | Rear Scintilator |
| ADC13 | Plastica sense wire 4 |
| TDC1 | Metalica sense wire 4 |
| TDC3 | Plastika sense wire 4 |
ADC + Scaler + TDC + V1495
| Run Number | Distance to Metallica's Feedthrough tip (cm) | Metalica scaler counts scaler ch 4 | Plastika Scaler Counts scaler ch 1 | Rear PMT + Front PMT + Gun Pulse Counts Scaler Ch 8 | HV S:F:G | Discriminator (mV) | Metalica counts/PMT+Gun pulse |
| 1263 | 19 | 0 | 1400:-700:980 | 50 |
TDC Measurements
TDC Calibration
Second pulse width is 80 ns.
| Run Number | Scope Image | TDC Histogram | Calculated Time (ns) | Time measured on the scope ns (between the fall the first pulse and rise of the second pulse) | Time measured on the scope ns (between the fall the first pulse and fall of the second pulse) |
| 1238 |  |
 |
169.5 | 160 | 80 |
| 1239 |  |
 |
135.7 | 130 | 50 |
| 1240 |  |
 |
111.5 | 110 | 30 |
Actual Measurements
| Run Number | Beam Energy (MeV) | Collimator size ~ (cm) | HV S:F:G | Discriminator Threshold (mV) | TDC Histogram |
| 1296 | 2 | 0.8 | 1400:-700:980 | 50 |  
|
| 1297, 1298 && 1299 | 4 | 0.8 | 1400:-700:980 | 50 |  
|
| 1304 && 1305 | 4 | 0.2 | 1400:-700:980 | 50 |  
|
| 1306 | 2 | 0.8 | 1400:-700:980 | 50 |  
|
VFAT runs
4 MeV beam energy, big collimator.
GEM HV settings: =3425/3125.
| Run Number | Card 1 Threshold | Card 2 Threshold |
| 1300 | 151 | 116 |
| 1301 | 153 | 118 |
| 1302 | 155 | 120 |
| 1303 | 157 | 122 |
GEM HV settings: =3425/3125.
4 MeV beam energy, small collimator.
| Run Number | Card 1 Threshold | Card 2 Threshold |
| 1305 | 151 | 124 |