Model 44-98 BGO Scintillator

The Model 44-98 is a BGO scintillation detector general purpose beta gamma survey.

Indicated Use Beta; Low-energy gamma detection
Detector Type Bismuth germinate (BGO) scintillator, 2.5 cm (1 in.) dia. x 1 mm thick
Window 1.2 mg/cm²
Window Area Active: 5 cm² (0.8 in²)
Open: 5 cm2 (0.8 in²)
Efficiency (4π)
¹⁴C: 3%
¹²⁵I: 15%
¹²⁹I: 8%
Typical Background (10 µR/hr field) 650 cpm
Non-Uniformity < 10%
Energy Response Energy dependent
Photomultiplier Tube 3.8 cm (1.5 in) diameter
Operating Voltage 500 to 1200 V (typical)
Connector Series "C"
Size (D x L) 4.8 x 18.7 cm (1.9 x 7.4 in.)
Weight 0.3 kg (0.6 lb)