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Self-shielding DD neutron generator

A neutron generator and self-shielding technology, applied in DC voltage accelerators, electrical components, accelerators, etc., can solve the problems of long construction period, large factory building area, and high cost

Active Publication Date: 2020-09-25
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to shield the neutron generator with a neutron output of 1E8 DD, the walls and roof of the plant need to be solidly poured with concrete, and the thickness needs to be more than half a meter to meet the requirements of the environmental impact assessment. The plant occupies a large area, the construction period is long, and the cost is high. unit unbearable

Method used

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  • Self-shielding DD neutron generator
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  • Self-shielding DD neutron generator

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Embodiment Construction

[0112] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0113] Such as figure 1 , Figure 13As shown, a self-shielding DD neutron generator includes a sealed cube-shaped shielding body composed of a first shielding body 1 and a second shielding body 2 closed, and a first cavity 3 is arranged inside the first shielding body 1, A second cavity 82 is arranged inside the second shield 2. When the first shield 1 and the second shield 2 are closed together, the first cavity 3 and the second cavity 82 together constitute the main body part of the neutron generator. Equipment compartment; the main part of the neutron generator is used to generate neutrons through the DD reaction; the main part includes the D+ ion source (the main components of the D+ ion source are arranged in the shielding box 6) and the straight-pipe cooling liquid guide pipe 4 , the coolant guide tube 4 is perpendicular to the ground, the top o...

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Abstract

The invention belongs to the technical field of neutron generators, in particular to a self-shielding DD neutron generator. The self-shielding DD neutron generator comprises a sealed cubic shielding body formed by folding a first shielding body (1) and a second shielding body (2), a first cavity (3) is formed in the first shielding body (1), and a second cavity (82) is formed in the second shielding body (2). When the first shielding body (1) and the second shielding body (2) are folded, the first cavity (3) and the second cavity (82) jointly form an equipment cabin provided with a main body part of the neutron generator, the main body part of the neutron generator is used for generating neutrons through a DD reaction. According to the present invention, the generation of neutrons of the neutron generator can be remotely controlled, the structure can be split, the main consumables are maintainable target pieces and ion sources, and the service life is basically not limited; the occupied area is only 2 m < 2 >, the DD neutron generator can be used in a common room, and a neutron shielding hall does not need to be independently built.

Description

technical field [0001] The invention belongs to the technical field of neutron generators, in particular to a self-shielding DD neutron generator. Background technique [0002] At this stage, with the increasing application range of neutrons, the demand for neutron sources is gradually increasing, and the requirements are gradually increasing. Many universities, research institutes and related enterprises need to use neutrons generated by neutron generators for Scientific research and neutron activation analysis and detection work. For example, the use of neutron activation analysis to detect the elemental composition of coal or cement on-line requires the use of thermal neutrons, usually using a 252-cf radioactive source, requiring a neutron source intensity of 1E8 or higher, but it is difficult to obtain such a radioactive source , needs to be imported, and because of the long-term high-intensity radioactivity of the radioactive source, it is extremely dangerous and very ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H3/06
CPCH05H3/06
Inventor 张凯陈红涛赵芳鲍杰阮锡超刘世龙侯龙龚新宝刘邢宇张坤
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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