Water injection and drainage full-automatic multisphere neutron spectrometer and measurement method

The technology of a neutron spectrometer and a measurement method is applied in the field of automatic multi-sphere neutron spectrometer and measurement for water injection and drainage, and can solve the problems of low neutron sensitivity and inability to measure neutron energy spectrum.

Active Publication Date: 2016-07-20
CHENGDU UNIVERSITY OF TECHNOLOGY +1
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the conventional multi-sphere neutron spectrometer has low sensitivity to neutrons above 20 MeV and cannot measure the neutron spectrum of tens of Me

Method used

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  • Water injection and drainage full-automatic multisphere neutron spectrometer and measurement method
  • Water injection and drainage full-automatic multisphere neutron spectrometer and measurement method
  • Water injection and drainage full-automatic multisphere neutron spectrometer and measurement method

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Embodiment 1

[0064] Embodiment 1: see Figure 1 to Figure 6 , set up as figure 1 In the water injection and drainage automatic multi-sphere neutron spectrometer shown, the detector 2 consists of a radius of 19.15cm 3 He spherical neutron detector 2 and 11 spherical shells, the 11 spherical shells are A spherical shell to K spherical shell from the inside to the outside, the A spherical shell is made of stainless steel, and the rest are made of lead glass. Spherical shells, and solid spherical shells and hollow spherical shells are interlaced and installed; therefore, spherical shell B can be a hollow spherical shell or a solid spherical shell. For the convenience of description, in this embodiment, it is assumed that the spherical shell B is a hollow spherical shell , the remaining spherical shells are arranged alternately in sequence, and the outer diameter of the spherical shell located in the inner layer is equal to the inner diameter of the spherical shell in the adjacent outer layer....

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Abstract

The present invention discloses a water injection and drainage full-automatic multisphere neutron spectrometer and a measurement method. A system comprises a water injection and drainage system, multiple layers of annular lead glass spherical shells, a spherical neutron detector and an analyzing and processing system. According to a neutron measurement place, the water injection and drainage full-automatic multisphere neutron spectrometer is installed, at measurement, the water injection and drainage system injects the water in the multiple layers of annular lead glass spherical shells orderly, thereby achieving the purpose of changing the thickness of a neutron moderator, and measuring the neutrons of different energy in an environment. According to the present invention, the water injection and drainage system carries out the full-automatic control on the different parameters of a single spherical detector, thereby achieving the multisphere detection purpose, solving the manufacturing complexity of a plurality of detection systems in a conventional multisphere system, reducing the manufacturing cost, at the same time, effectively avoiding the problems that the detectors in the conventional multisphere system influence each other and are inconsistent, and the overall carrying of the plurality of detectors is tedious.

Description

technical field [0001] The invention relates to a neutron spectrometer and a measuring method, in particular to a fully automatic multi-sphere neutron spectrometer for water injection and drainage and a measuring method. Background technique [0002] The space radiation environment is complex, neutrons spread all over the space, and the energy ranges from a few MeV to tens of MeV, and most organs of the human body are composed of low atomic number substances, so after the human body is irradiated by neutrons, the key organs Can suffer severe damage, induce tumors and even lead to death. With the development of the aerospace industry in various countries, more and more attention has been paid to the radiation damage of space environment radiation to spacecraft and its components, and to astronauts. Only by measuring the space neutron energy spectrum and taking effective protective measures can the damage be minimized . [0003] The spherical neutron spectrometer was propose...

Claims

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Application Information

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IPC IPC(8): G01T3/00
CPCG01T3/00
Inventor 杨剑波庹先国黄红王洪辉成毅刘志李锐
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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