Beta Detector - Model 44-116
CE Seal
Specifications

INDICATED USE: beta survey
SUGGESTED INSTRUMENTS: general purpose survey meters, ratemeters, and scalers
SCINTILLATOR: 0.025 cm (0.010 in.) thick rectangular plastic scintillator
EFFICIENCY (4π): 15% for 99Tc; 4% for 14C; 30% for 90Sr90Y
WINDOW: 1.2 mg/cm² aluminized polyester
WINDOW AREA:
    Open: approximately 100 cm² (15.5 in²)
    Active: approximately 125 cm² (19.4 in²)
PROTECTOR SCREEN: 22 ga (0.076 cm [0.030 in.]) stainless steel hex (0.64 cm [0.25 in.]), 79% open
RESPONSE UNIFORMITY: ±10% from average reading
GAMMA SENSITIVITY: approximately 20 cpm per μR/hr
BACKGROUND: beta 300 cpm or less
PHOTOMULTIPLIER TUBE: 3.8 cm (1.5 in.) diameter
OPERATING VOLTAGE: typically 500–1000 volts (1500 volts maximum)
CONSTRUCTION: aluminum with beige powder coating
TEMPERATURE RANGE: -20 to 50 °C (-4 to 122 °F)
CONNECTOR: series “C”, unless specified otherwise
WINDOW FRAME SIZE: 190.3 x 100.2 mm (7.5 x 3.9 in.) (L x W)
OVERALL SIZE: 33 x 10 x 10 cm (12.25 x 4 x 4 in.) (L x W x H)
WEIGHT: 0.68 kg (1.5 lb)