A High Speed Geiger-Counter Circuit

Abstract

An improved Geiger-counter circuit is described which has the following characteristics: (1) It will respond to at least 2×${10}^5$ particles per minute. (2) Easily obtainable resistances of not more than a few million ohms are used. (3) Consistency of operation is obtained since surface leakages and surface charges are unimportant. (4) The circuit will operate equally well with very small or very large counting tubes, and at either low or high counting rates. (5) The counts are independent of the voltage on the counter over a wide range. (6) A large pulse is obtained which makes possible the use of low values of resistance and capacity to the mixing tube in case several counters are used to count coincidents. (7) The circuit is simple, inexpensive to make and has given satisfactory performance on several different research problems at this Institute.