Energy Compensation Filter

Ambient Dose FilterM44-9DOSEModel 26-1 DOSE


As any Health Physicist can tell you, the venerable GM pancake detector has a significant over-response at lower energies that produce false exposure and dose readings.  To correct this situation, Ludlum has designed an energy compensation filter for the Model 44-9 GM Pancake detector and Model 26-series instruments that enables more accurate ambient equivalent dose measurements.  The filter flattens the energy response to within 20% across an energy range of 20 keV to 1.2 MeV for ambient equivalent dose.

The filter simply snaps into place across the detector face when making a dose type measurement and can be removed just as easily when returning to measuring for contamination.  The filter can be purchased separately or with a new Model 44-9 detector or Model 26-series instrument.

To learn more and review a complete technical report visit any of these pages: