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Safety interlocking control system for protective door of neutron irradiator in hospital

A technology of hospital neutron irradiation and control system, which is applied in the field of safety interlocking control of neutron irradiation protection doors in hospitals, and can solve the problems of radiation leakage and personnel entering by mistake.

Active Publication Date: 2018-02-02
BEIJING CAPTURE TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, if the protective door is opened during the operation of the reactor, it will inevitably cause radiation leakage or personnel may enter by mistake and be irradiated.

Method used

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  • Safety interlocking control system for protective door of neutron irradiator in hospital
  • Safety interlocking control system for protective door of neutron irradiator in hospital

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Experimental program
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Effect test

Embodiment Construction

[0024] Such as figure 1 As shown, the hospital neutron irradiator protective door safety interlock control system includes a control computer, a state detection device for the protective door of the irradiation room, a neutron fluence rate detection device, and a reactor control rod drive device.

[0025] The device for detecting the state of the protective door of the irradiation room is associated with the protective door of the irradiation room, and is used to detect the state of the protective door of the irradiation room, which may be a micro switch.

[0026] The neutron fluence rate detection device is used to detect the neutron fluence rate in the irradiation chamber, which can adopt a current-type miniature fission chamber.

[0027] The reactor control rod driving device includes a stepping motor, a wire rope and a pulley mechanism, and is used to control the reactor control rod, and the reactor control rod includes a central control rod and an auxiliary control rod. ...

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Abstract

The invention relates to a safety interlocking control system for a protective door of a hospital neutron irradiator. The safety interlocking control system comprises a control computer, an irradiation protective door state detection device, a neutron flux detection device and a reactor control bar driving device, wherein the irradiation protective door state detection device is related to the protective door of an irradiation room and is used for detecting the state of the protective door of the irradiation room; the neutron flux detection device is used for detecting the neutron flux in the irradiation room; and therefore, the irradiation leakage or mistaken irradiation for personnel caused by mistakenly opening of the protective door can be effectively prevented.

Description

technical field [0001] The invention relates to the field of nuclear reactor control, in particular to the safety interlock control technology of a hospital neutron radiation protection door. Background technique [0002] Boron neutron capture therapy (BNCT) is a new type of dual-targeted malignant tumor radiotherapy technology. A neutron beam channel of a high-power experimental research reactor is used as a neutron source in the world, because this neutron source is It is built in a nuclear technology research center or university, far away from residential areas and hospitals, and has high construction costs, complicated operation and maintenance, and is not dedicated to BNCT, which causes great inconvenience and difficulty to the treatment of patients. Therefore, it is urgent to provide a novel hospital neutron irradiator and supporting facilities. [0003] The irradiation room of the hospital's neutron irradiator reactor is the room where the patient is irradiated. In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C7/12G21C9/02G21C13/02
CPCG21C7/12G21C9/02G21C13/02Y02E30/30
Inventor 王理玉王嵩张紫竹
Owner BEIJING CAPTURE TECH
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