METHOD FOR FORMATION OF GAMMA NEUTRON RADIATION FIELD IN RESEARCH REACTORS Russian patent published in 2010 - IPC G21K5/00 

FIELD: power engineering.

SUBSTANCE: radiation field with specified characteristics of radiation is formed by superposition of radiation fields generated by reactor and special device that converts neutrons into gamma photons. Converter devices are arranged outside sector of direct exposure of reactor radiation symmetrically to normal line passing from centre of reactor core to longitudinal axis of tested object, and reactor itself with converter devices is moved along tested object with permanent speed providing for homogeneity of field and reproduction of specified radiation parametres, at the same time length of movement route, depending on number of reverse reactor motions, is chosen as equal to (or multiple to) length of tested object.

EFFECT: development of homogeneous field of radiation loading of tested object and considerable increase of gamma radiation dose input in tested volume of reactor.

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