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Neutron and gamma integrated electronic dose monitoring device

A monitoring device and electronic technology, applied in the field of radiation protection, can solve the problems of inability to monitor neutrons and gamma at the same time, inability to measure dose rate, inconvenience, etc., achieve comprehensive and effective recording and supervision, reduce the burden of carrying equipment, and ensure radiation protection. safe effect

Pending Publication Date: 2021-07-20
CHINA SHIP DEV & DESIGN CENT
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AI Technical Summary

Problems solved by technology

Thermoluminescence dosimeter is used as a legal monitoring device, but it can only record the cumulative dose during exposure, it cannot measure the dose rate reflecting the radiation level, it cannot display the measured dose online, and it cannot send an alarm signal in the event of a dose exceeding accident , it may happen that the radiation exposure exceeds the specified limit; the electronic dosimeter is a direct-reading real-time measurement device, which can send out an audible and visual alarm signal when the threshold is exceeded; the data measured by the electronic dosimeter can also be used for a certain monitoring period or Analysis and evaluation of individual and collective doses for a particular job
However, the electronic dosimeter currently used can only monitor neutron dose or gamma dose, and cannot monitor neutron and gamma at the same time. For complex radiation fields mixed with neutron and gamma, workers need to wear dosimeters, which brings a lot of inconvenience to daily work

Method used

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  • Neutron and gamma integrated electronic dose monitoring device
  • Neutron and gamma integrated electronic dose monitoring device
  • Neutron and gamma integrated electronic dose monitoring device

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] see figure 1 , the main board of the embodiment of the present invention adopts a single board design, in order to save space, all circuit functions are designed on one PCB printed board. The motherboard hardware includes detectors, onboard power supplies, analog circuits, low-power processors, displays and operating status indicators, etc.

[0026] (1) The detector is an important component of the dose monitoring device. The gamma detector uses a semiconductor detector, which has the advantages of low junction capacitance, low dark current, high-speed photoelectric response, small size, and high resolution. The neutron detector adopts microstructure neutron detector. Using an integrated design, the detectors share a charge-sensitive preamplifier. That is, the analog signal detected by the gamma detector and the neutron det...

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Abstract

The invention provides a neutron and gamma integrated electronic dose monitoring device which realizes the function of simultaneously monitoring the neutron external irradiation dose and gamma external irradiation dose of a worker in a neutron and gamma mixed complex radiation field by integrating the measurement functions of neutron dose and gamma dose measurement, is convenient to carry. Instrument carrying burden of workers is reduced, and radiation safety of the workers is ensured. According to the invention, the neutron dose value and the gamma dose value are measured and displayed in real time and are visual and easy to read, an alarm is given when the dose exceeds the limit, and the personal radiation dose of workers is ensured to be at a reasonable and as low as possible level.

Description

technical field [0001] The invention belongs to the technical field of radiation protection, and in particular relates to a neutron and gamma integrated electronic dose monitoring device. Background technique [0002] When radioactive workers carry out nuclear-related operations, in order to ensure the life, health and radiation safety of the staff and ensure that the radiation dose received is as low as possible, it is necessary to conduct comprehensive and effective dose monitoring, analysis, evaluation and management of the staff . [0003] At present, in the personal dose monitoring and management system, external radiation monitoring mainly adopts the combination of thermoluminescence dosimeter and electronic dosimeter. Thermoluminescence dosimeter is used as a legal monitoring device, but it can only record the cumulative dose during exposure, it cannot measure the dose rate reflecting the radiation level, it cannot display the measured dose online, and it cannot send...

Claims

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Application Information

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IPC IPC(8): G01T1/02
CPCG01T1/026
Inventor 孙涛军高岩汪广怀郝锐王畅
Owner CHINA SHIP DEV & DESIGN CENT
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