Design and Performance of a Multicellular Geiger Counter for Gamma-Radiation

Abstract

The design problems for Geiger counters which have a high gamma‐radiation sensitivity are discussed. A description of a Geiger counter consisting of nine individual counters in the shape of pillboxes mounted inside a single envelope is given. The individual pillboxes are 3 inches in diameter. The anode has the shape of a four‐pronged spider which is centered in the box. The nine section counter has a flat plateau of about 150 volts, and intrinsic sensitivity of 25 percent. Its lifetime is better than 10⁷ counts.