 Ludlum Model
44-183
Gamma Radiation Shielded G-M Detector
Features
-
Energy-Compensated GM Radiation Detector
-
Detector Range: 1 mR/h - 10 R/h
-
10:1
Directional Shielding
-
Rugged Construction
 Introduction
The Ludlum Model 44-183 facilitates gamma radiation surveys
in high-background environments and in areas where elevated radiation fields
are directional. The detector design incorporates lead shielding that
results in a 10:1 reduction in sensitivity from gammas entering in any
direction but the bottom face.
The dynamic range is greatest with instruments equipped with DTC (Dead Time
Correction) resulting in measurements of 1 mR/hr - 10 R/hr. The GM
radiation detector is a halogen quenched, energy-compensated GM.
The front plate and handle are constructed of aluminum. All exterior surfaces are
protected by a durable, splatter-finish, beige colored paint. Reference
markings on the detector housing indicate the internal position of the
embedded GM tube.
Specifications
PART NUMBER: 47-3758
DETECTOR RANGE WITH DTC:
1 mR/hr - 10 R/hr
DETECTOR RANGE WITHOUT
DTC: 1 mR/hr - 2 R/hr
RADIATION DETECTOR:
GM, energy-compensated
ENERGY RESPONSE:
± 15% of true value
SENSITIVITY (137Cs):
100 cpm/mR/hr (0.17 cps/μSv/h)
FRONT-TO-BACK SHIELD RATIO (137Cs):
10:1
OPERATING VOLTAGE:
recommended 550 V
INPUT SENSITIVITY:
-30 mV ± 10 mV
DEAD TIME:
typically 50 microseconds
CONSTRUCTION:
painted aluminum housing
TEMPERATURE RANGE:
-4 to 122 °F (-20 to 50 °C)
SIZE:
4.2 x 4.8 x 5.0 in (10.7 x 12.2 x 12.7 cm) (H x W x L)
WEIGHT:
7.3 lb (3.3 kg)
 This Product is CE Certified
Technical Information
Other Ludlum Products
Ludlum Information
For more information or to request a quotation,
please contact us
by phone at: (865)
947-5123 or by email at:
sales@deqtech.com.
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