Beta Detector - Model 44-142
CE Seal
Specifications

INDICATED USE: beta contamination
COMPATIBLE INSTRUMENTS: general purpose survey meters, ratemeters, scalers
NON-UNIFORMITY: less than 10%
OPERATING VOLTAGE: typically 500-1200 volts
CONNECTOR: Series "C" (others available)
SCINTILLATOR: 0.025 cm (0.010 in.) thick plastic scintillator
WINDOW: 1.2 mg/cm² metalized polyester
WINDOW AREA: 100 cm² (15.5 in²) active; 88 cm² (13.6 in²) open
EFFICIENCY (4π): typically 4% for 14C; 30% for 90Sr/90Y; 20% for 99Tc
GAMMA SENSITIVITY: approximately 20 cpm/µR/hr (137Cs)
DEAD TIME: typically 5 µsec or less
BACKGROUND (10 µR/hr): typically 300 cpm or less
ENERGY RESPONSE: N/A
TEMPERATURE RANGE: -20 to 50 °C (-4 to 122 °F)
CONSTRUCTION: aluminum housing with beige powder coat
SIZE: 6.4 x 9.5 x 31.1 cm (2.5 x 3.8 x 12.3 in.) (H x W x L)
WEIGHT: 0.5 kg (1 lb)