Ludlum Model 44-11

  Gamma Radiation Detector

PART NUMBER: 47-1541

APPLICATION: high sensitivity gamma radiation measurements, survey
RADIATION DETECTOR: 2 x 2 in. (5.1 x 5.1 cm) (Dia x L) sodium iodide (NaI)Tl scintillator

ENERGY RESPONSE: energy dependent

COMPATIBLE INSTRUMENTS: SCA, MCA

SENSITIVITY: typically 900 cpm/µR/hr (¹³⁷Cs gamma), MCA quality

CONSTRUCTION: integral-line

BACKGROUND: 9750 cpm

PHOTOMULTIPLIER TUBE: 2 in. (5.1 cm) diameter
OPERATING VOLTAGE: typically 500-1200 volts
SIZE: 2.5 x 10.5 in. (6.4 x 26.7 cm) (Dia X L)
WEIGHT: 1.4 lb (0.6 kg)

CE CERTIFIED: yes

Model 180-9 Sample Holder	Sample Planchets	Check Source