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Gamma ray irradiation device used for thermoluminescence personal dosimeter calibration

An irradiation device and thermoluminescence technology, applied in radiation measurement, instruments, etc., to reduce calibration costs and improve calibration efficiency

Pending Publication Date: 2017-02-22
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the irradiation device adopts a self-shielding integrated design, there are no special requirements for the shielding facilities and area of ​​the laboratory

Method used

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  • Gamma ray irradiation device used for thermoluminescence personal dosimeter calibration
  • Gamma ray irradiation device used for thermoluminescence personal dosimeter calibration
  • Gamma ray irradiation device used for thermoluminescence personal dosimeter calibration

Examples

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Embodiment 1

[0025] A gamma-ray irradiation device for calibrating a thermoluminescence personal dosimeter, the irradiation device includes an irradiation system, a positioning system, a transmission system, and a control system; wherein the irradiation system, the positioning system, and the transmission system are located in the same housing 13, and the irradiation The system is located above the transmission system, and the positioning system is located on the side of the transmission system;

[0026] The irradiation system includes a radiation source 2, a radiation source chamber 11, an irradiation chamber 4, a tungsten alloy attenuator 12, a tungsten alloy attenuator driving device 3 and a lead shield 1, wherein the tungsten alloy attenuator driving device 3 includes a driving motor and a driving Rod; the radiation source 2, the radiation source chamber 11, the irradiation chamber 4, and the tungsten alloy attenuator 12 are all located in the lead shielding body 1, and the tungsten all...

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PUM

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Abstract

The invention belongs to the dosimeter calibration technology field, and discloses a gamma ray irradiation device used for thermoluminescence personal dosimeter calibration. The irradiation device comprises an irradiation system, a positioning system, a transmission system, and a control system. The irradiation system, the positioning system, and the transmission system are disposed in the same housing. The irradiation system is disposed on the upper part of the transmission system, and the positioning system is disposed on one side of the transmission system. The control system comprises a computer, a PLC special controller, a positioning sensor, and an irradiation controller. The computer and the PLC special controller are used to independently realize the control over the gamma ray irradiation device, and the positioning, the transmission, and the irradiation of the thermoluminescence personal dosimeter are realized automatically. The gamma ray irradiation device has advantages of high calibration efficiency, low calibration place requirement, good automatic shielding effect, and ability of realizing automatic calibration.

Description

technical field [0001] The invention belongs to the technical field of dosimeter calibration, and in particular relates to a gamma ray irradiation device used for calibration of thermoluminescent personal dosimeters. Background technique [0002] During the operation of nuclear power plants, a large number of X and gamma radiation monitoring instruments are required, mainly including area monitoring, process radiation monitoring, effluent radiation monitoring and personal dose monitoring, among which the personal dose monitoring of radioactive workers is an important task. With the rapid development of peaceful use of nuclear energy, the number of workers engaged in occupational radioactivity is increasing. To ensure the safety of workers, the International Commission on Radiological Protection (ICRP) has recommended a personal annual dose limit, that is, the annual dose of radiation workers The cumulative maximum permissible exposure dose for each single exposure within a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T7/00
CPCG01T7/005
Inventor 高飞倪宁宋明哲侯金兵王红玉
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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