Ludlum Model 44-1

Description

INDICATED USE: Beta detection
SCINTILLATOR: 1.7″ diameter x 0.01″ thick (4.3 x 0.03 cm) plastic scintillator
WINDOW: 1.2 mg/cm²
NON-UNIFORMITY: Less than 10%
OPERATING VOLTAGE: Typically 500 – 1200 volts
WINDOW AREA: 11.6 cm² active and open
EFFICIENCY (4pi): 10% – ¹⁴C
BACKGROUND (10 µR/hr): Typically 100 cpm
ENERGY RESPONSE: N/A
COMPATIBLE INSTRUMENTS: General purpose survey meters, ratemeters and scalers
SIZE: 2″ diameter x 7.3″ L (5.1 x 18.5 cm)
WEIGHT: 1 lb (0.5 kg)
PHOTOMULTIPLIER TUBE: 1.5″(3.8 cm) diameter