Default HRRL running Conditions
| [math]I_{peak}[/math]
|
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 |
4 |
0.8 |
1400:-700:980 |
50 |
|
| 1298 |
4 |
0.8 |
1400:-700:980 |
50 |
250px
|
| 1299 |
4 |
0.8 |
1400:-700:980 |
50 |
250px
|
| 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: [math]V_{Drift}/V_{GEM}[/math]=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: [math]V_{Drift}/V_{GEM}[/math]=3425/3125.
4 MeV beam energy, small collimator.
| Run Number
|
Card 1 Threshold
|
Card 2 Threshold
|
| 1305 |
151 |
124
|
File:Pb Attenuation Photon.pdf
