Environmental Restoration Group

Ludlum Model 44-62
Ludlum Specifications
INDICATED USE: Low-level, wide-energy gamma detection
ENERGY RESPONSE: Energy dependent
SUGGESTED INSTRUMENTS: General purpose survey meters, ratemeters, and scalers
OPERATING VOLTAGE: 500 - 1200 volts
SCINTILLATOR: 0.5" diameter x 1" thick Nal (1.3 x 2.5 cm)
SENSITIVITY: Typically 49 cpm/uR/hr (137Cs gamma)
RECOMMENDED ENERGY RANGE: 50 KeV - 1.5 MeV
PHOTOMULTIPLIER TUBE: 0.5" diameter (1.3 cm)
SIZE: 0.9" diameter x 7.8" L (2.3 x 19.7 cm)
WEIGHT: 0.3 lbs. (0.1 kg)
BACKGROUND: 600 cpm
8809 Washington St. NE • Suite 150
Albuquerque, NM 87113
Tel: (505) 298-4224
Fax: (505) 797-1404