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A radiation source position detection device

A detection device and radioactive source technology, applied in the field of nuclear chemical industry, can solve problems such as accidental exposure of workers, stuck neutron source, and inability to accurately judge the position of neutron source. Effects on the risk of accidental exposure of persons

Active Publication Date: 2020-12-11
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the influence of the diameter, length, and layout of the transmission pipeline, the neutron source may be stuck in the transmission pipeline, resulting in the inability to accurately determine the position of the neutron source, resulting in accidental exposure of workers

Method used

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  • A radiation source position detection device
  • A radiation source position detection device

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Embodiment Construction

[0021] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] In order to detect the neutron source position storage source tank, a technical solution is the proximity switch disposed on a path of a neutron source neutron source of pneumatic conveying system 14 is powered. However, although the addition of neutron source in the conveying pipe a number of proximity switches, to track the position of the neutron source through the transport pipeline, but by the sensitivity of the proximity switch and the compressed air pressure affect their size, by the proximity switch to control a neutron source location has brought some difficulties. The neutron source is located by the proximity switch position, the proximity switch can respond quickly, through which a voltage change (step change), by determining whether the position. However, in a particular practical work, we found that, when the air pressure, the fast neutron...

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Abstract

The invention discloses a radiation source position detection device, comprising a source storage tank, a position tracking assembly for detecting a position of a neutron source from the source storage tank, and a photoelectric photomultiplier assembly. The photoelectric photomultiplier assembly is set close to the source storage tank, so the position of the neutron source is judged according to count change of the photoelectric photomultiplier assembly. The device has the beneficial effects that whether the neutron source returns back to the source storage tank successfully or not is judged according to the count change of the photoelectric photomultiplier assembly, through matching with the position tracking assembly, a judgment probability can be effectively improved, and a risk that personnel are irradiated accidently is reduced. The device is easy to set up, is high in portability and is wide in application.

Description

Technical field [0001] The present invention relates to the field of nuclear chemical, in particular one kind of radiation source position detecting means. Background technique [0002] Radioisotope neutron source having a small volume, simple structure, easy to carry advantages in measuring instruments, neutron radiography, reactor startup, the field of nuclear research plurality of test, radiation breeding has been widely used. However, neutrons through a strong ability to ionizing radiation, neutron source must be considered when the external radiation protection, reduce the dose received by the staff. [0003] Work during non-irradiation, neutron source must be placed in the storage tank, to provide the necessary protective shield structure by the storage tank, reducing the radiation dose received by personnel, to ensure the safety of personnel. [0004] Currently, more secure way to move is pneumatically neutron source, a neutron source disposed in the transfer conduit, one ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T3/00
Inventor 刘东海章秩烽张巍朱庆福罗皇达
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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