A Portable Gamma-Ray Survey Meter Using Silicon Amplifying Radiation Detectors

The Survey Meter measures γ-ray dose rates from background up to 20 rad/hour. The γ-ray energy range is from 30 keV to 1.25 MeV. Amplifying detectors which avalanche between 500 and 2000 volts are acceptable. The paper describes the circuits, mechanical design and its performance.