Matching Detectors

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Detector C

Rate VS HV (Detecotr C)

Threshold at 80 mV (Detecotr C)

High Voltage (Volts) Counts/5min
1500 563
1550 949
1600 1912
1650 3191
1700 4557
1750 6235
1800 7900
1850 9789
1900 12192


High Voltage (Volts) Counts/1min
2000 4444
2100 14739



Threshold at 150 mV (Detecotr C)

High Voltage (Volts) Counts/5min
1500 173
1550 226
1600 284
1650 313
1700 375
1750 449
1800 685


High Voltage (Volts) Counts/1min
1850 213
1900 382
2000 782
2100 1311


Threshold at 170 mV (Detecotr C)

High Voltage (Volts) Counts/5min
1500 282
1550 310
1600 380
1650 463
1700 743
1750 1274
1800 2166


Threshold at 220 mV (Detecotr C)

High Voltage (Volts) Counts/5min
1500 302
1550 347
1600 387
1650 594
1700 392
1800 2889


Rate VS Threshold (Detecotr C)

HV at 1560V

Threshold (mV) Counts/5min
20 6625
40 2882
60 1299
80 785
100 579
120 399
140 390
160 349
180 372
200 347
220 301
240 312
255 307
160

Detector B

Rate VS HV (Detecotr B)

Threshold at 80 mV (Detecotr B)

High Voltage (Volts) Counts/5min
1500 290
1550 316
1600 350
1650 470
1750 1267


High Voltage (Volts) Counts/1min
1850 671
1950 1197
2050 1678


Threshold at 170 mV (Detecotr B)

High Voltage (Volts) Counts/5min
1500 148
1550 236
1600 241
1650 281
1700 231
1750 586
1800 1388


Threshold at 220 mV (Detecotr B)

High Voltage (Volts) Counts/5min
1500 190
1550 205
1600 276
1650 290
1700 343
1750 436
1800 615
1900 1715


Rate VS Threshold (Detecotr B)

HV at 1560V

Threshold (mV) Counts/5min


Detector A

Crystal of Detector A is Polished, its PMT is the same PMT used on detector B.


Rate VS HV (Detecotr A)

Threshold at 220 mV (Detecotr A)

High Voltage (Volts) Counts/5min
1500 166
1550 233
1600 266
1650 306
1700 305
1750 364
1800 564
1850 870
1900 1900


Rate VS Threshold (Detecotr A)

HV at 1560V

Threshold (mV) Counts/5min
20 2983
40 881
60 452
80 345
100 337
110 315
120 296
140 303
160 267
180 246
200 218
220 227
240 208
255 192