Fast neutron spectrum measurement system and method

A measurement system and fast neutron technology, applied in the field of radiation detection, can solve the problems of complex system and low measurement accuracy, and achieve the effects of high measurement accuracy, easy radiation shielding, and easy realization
CN107247286AActive Publication Date: 2017-10-13PEKING UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PEKING UNIV
Publication Date
2017-10-13

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Abstract

The invention provides a fast neutron spectrum measurement system and method. The system mainly comprises a target material and a gamma spectrum instrument, wherein a to-be-measured neutron and nuclide in the target material react to generate characteristic gamma rays having the Doppler-broadening effect, and to-be-measured neutron spectrum can be acquired through measuring and analyzing the broadening gamma pulse amplitude spectrum. The system is advantaged in that the system is simple and simple, neutron spectrum measurement is converted into gamma spectrum measurement, and high measurement precision is realized.
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Description

technical field

[0001] The invention belongs to the field of radiation detection, and in particular relates to a fast neutron energy spectrum measurement system and method. Background technique

[0002] Neutron energy spectrum is the intensity distribution of neutrons according to energy. Its accurate measurement is a key technology in the field of radiation detection, and it is also a difficult problem. Common neutron spectrum measurement methods are based on Bonner sphere detectors or liquid scintillator detectors, but the accuracy is not high. In particular, Bonner sphere detectors need to process a series of moderators with different thicknesses, making the system complex. Contents of the invention

[0003] In order to overcome the problems of low measurement accuracy and complex system in the prior art, the present invention provides a new measurement system and method for fast neutron energy spectrum.

[0004] Based on a conventional gamma spectrometer, the inventio...

Claims

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