Model 44-38 Energy Compensated GM Detector – Ludlum

The Model 44-38 Energy Compensated GM Detector (Ludlum) is a device for beta and gamma radiation survey.

Model 44-38 Energy Compensated GM Detector features:

  • weight: 0.5 kg
  • detector: 30–45 mg/cm2 stainless steel wall halogen quenched GM
  • sensitivity: 1200 cpm per mR/hr (137Cs gamma) with window closed
  • range: ± 10% up to 50 mR/hr without DTC and up to 500 mR/hr with DTC
  • background: 25 cpm open, 20 cpm closed
  • gamma energy response (window closed): within 20% of 137Cs (662 keV) from 60 keV to 1.3 MeV

Read more about the Model 44-38 Energy Compensated GM Detector on the

Ludlum website

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    Datasheet Model 44-38 Energy Compensated GM Detector Ludlum