Beta & Low Energy Gamma Detector - Model 44-98
CE Seal
Specifications

INDICATED USE: beta, low-energy gamma detection
COMPATIBLE INSTRUMENTS: Models 12, 16, 18, 2221, 2241, 2350-1, scalers, alarm ratemeters
DETECTOR TYPE: scintillator, 2.5 cm (1 in.) diameter x 1 mm thick bismuth germinate (BGO) crystal
WINDOW: 1.2 mg/cm²
WINDOW AREA: 5 cm² active and open
NON-UNIFORMITY: less than 10%
EFFICIENCY (4π): 15% of 125I; 8% of  129I; 3% of 14C
BACKGROUND (in 10 μR/hr field): 650 cpm
ENERGY RESPONSE:energy dependent
PHOTOMULTIPLIER TUBE: 3.8 cm (1.5 in.) diameter
OPERATING VOLTAGE: typcally 500-1200 volts
CONNECTOR: series "C"
SIZE: 4.8 x 18.7 cm (1.9 x 7.4 in.) (Dia x L)
WEIGHT: 0.3 kg (0.6 lb)