Matching Detectors

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

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