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A COMPENSATED IONIZATION CHAMBER FOR THE MEASUREMENT OF THE THERMAL NEUTRON FLUX

J. Kalus, Max Pollermann

Abstract

An ionization chamber compensated for gamma radiation was developed with which the thermal neutron flux or the output of a reactor can be measured over 7 decades. In this range the current intensity is linearly dependent on the output. The sensitivity for neutrons is S/sub n/=7.8 x 10/sup -15/ amp/sec/ cm/sup 2/. The maximum flux is 10/sup 11/ neutrons sec/sup -1/ cm/sup -2/. The compensation was mechanically produced. (tr-auth)

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Key concepts: Ionization chamber, Neutron flux, Neutron, Ionization, Neutron temperature, Flux (metallurgy), Nuclear physics, Atomic physics