Medium energy neutron detection method

Abstract

The invention belongs to the technical field of radioactivity measurement of nuclear reactors, and discloses a detection method for placing thermal neutron or fast neutron detectors in a moderation sleeve to measure neutrons of neutron energy. The method utilizes existing thermal neutron or fast neutron detectors, which can not only meet the requirements of neutron detection at medium energy, but also reduce the development cost of the detectors.

Description

Medium energy neutron detection method technical field The invention belongs to the technical field of radioactivity measurement of nuclear reactors, and in particular relates to a neutron detection method of neutron energy. Background technique As the world's technological and military powers launch ambitious space programs and vigorously develop aerospace technology, the demand for high-power and long-life space power supplies with higher technical and tactical indicators is becoming more and more urgent. The space thermionic nuclear reactor power supply using direct thermoelectric conversion is the most promising space power supply at present. The United States and Russia (former Soviet Union) have started research work on space reactors since the 1940s and 1950s, and have successfully launched 36 space reactors with power levels ranging from hundreds of watts to kilowatts into space. The technical design work of the Space Stack. In order to grasp the physical propert...

AI Technical Summary

Problems solved by technology

At present, thermal neutron reactors or fast neutron reactors are widely used, and the neutrons to be detected are thermal neutrons and fast neutrons. Therefore, the corresponding reactor detectors (such as ionization chambers and neutron counter tubes, etc.) are all Developed for thermal neutrons and fast neutrons, but the reactor status measurement technology for medium energy (epithermal) neutrons is blank

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