APPARATUS FOR MEASURING NEUTRONS AND GAMMA RAYS

摘要

An apparatus for measuring neutrons and gamma rays is disclosed in which after pulses generated by neutrons are discriminated from pulses generated by gamma rays, two different counted values are obtained for either the pulses generated by neutrons or the pulses generated by gamma rays to control a discriminating circuit between the pulses by neutrons and the pulses by gamma rays so that a ratio between the different counted values is kept constant, and further two different counted values are obtained for either the pulses by neutrons or the pulses by gamma rays in a manner the same as the above-mentioned to control the output of a detector so that a ratio between the counted values is kept constant.