Shielded GM Detector - Model 44-183
The Model 44-183 facilitates gamma surveys in high-background environments and in areas where elevated 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 10 μSv/h to 100 mSv/h (1mR/hr to 10 R/hr). The GM detector is a halogen quenched, energy-compensated GM.
The front plate and handle are constructed from 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.