Ludlum Medical Physics Model 44-172
Beta and Low Energy Gamma Radiation Detector
Introduction
The Ludlum
Model 44-172 YSO (Yttrium Oxyorthosilicate) detector is used primarily for the
detection of low-energy gamma radiation, from approximately 5 keV to 145 keV. It
will also detect beta energy as low as 49 keV. The detector consists of a 1-inch
diameter by 1-millimeter thick YSO scintillator. The window area is
approximately 5 cm.
Specifications
PART
NUMBER: 47-3542
NON-UNIFORMITY: Less than 10%
OPERATING VOLTAGE: Typically 500 - 1200 volts
INDICATED USE: Low energy gamma
SCINTILLATOR: YSO (Yttrium Oxyorthosilicate)
WINDOW: 1.2 mg/cm2
WINDOW AREA: 5 cm2
active and open
EFFICIENCY (4pi): 25% -
129I; 8% - 14C;
7% - 55Fe
BACKGROUND (10 µR/hr): 250 cpm or less
ENERGY RESPONSE: Energy dependent
COMPATIBLE INSTRUMENTS: Any Ludlum meters with 00 -
1200 vdc and 35 mV input sensitivity
SIZE: 2" diameter x 7" L (5.1 x 17.8 cm)
WEIGHT: 1 lb (0.5 kg)
PHOTOMULTIPLIER TUBE: 1.125"(2.9 cm) diameter
Other Ludlum Medical Physics Products
Ludlum Medical Physics Information
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