NEUTRON DETECTOR Russian patent published in 2012 - IPC G01T3/00 

FIELD: physics.

SUBSTANCE: neutron detector has a source of charged particles arising under the action of neutron radiation and an elastic member, wherein the source of charged particles is made from stable, non-radioactive material. A charged particle absorber is placed opposite the source of charged particles. The elastic member is in form of a fibre-optic mechanical strain sensor base on an embedded Bragg diffraction grating mounted by one of its ends on the absorber and/or the source of charged particles.

EFFECT: avoiding fissile material, high noise-immunity, high reliability of measurements and the neutron detector, eliminating restrictions on the measured flux and fluence, enabling measurement of the time dependency of flux in case of pulsed neutron sources, providing the required triggering threshold by optical means when starting up the detecting equipment, enabling multiple use and easy technical implementation.

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