Environmental Restoration Group

Ludlum Model 44-20
Ludlum Specifications
ENERGY RESPONSE: Energy dependent
OPERATING VOLTAGE: Typically 500 - 1200 volts
CONSTRUCTION: Integral-line
SCINTILLATOR: 3" diameter x 3
SENSITIVITY: Typically 2300 cpm/mR/hr (137Cs gamma)
SUGGESTED INSTRUMENTS: SCA/MCA
SIZE: 3.3" diameter x 11.3" L (8.3 x 28.7 cm)
WEIGHT: 3.7 lbs (1.7 kg)
BACKGROUND: 23 kcpm
PHOTOMULTIPLIER TUBE: 3" (7.6 cm) diameter
8809 Washington St. NE Suite 150
Albuquerque, NM 87113
Tel: (505) 298-4224
Fax: (505) 797-1404