Pulse X-ray irradiation device for active ionizing radiation dosimeter test

Abstract

The invention provides a pulse X-ray irradiation device for an active ionizing radiation dosimeter test. The device adopts a pulse X-ray machine as a radiation source, X-rays with different energies can be obtained by adjusting the tube voltage of the pulse X-ray machine, thereby providing test service with the X-rays with different energies for the active ionizing radiation dosimeter. The irradiation device can provide the test of the pulse X-rays for the active ionizing radiation dosimeter, improve the accuracy and effectiveness of the radiation measurement.

Description

technical field [0001] The present invention relates to a pulsed X-ray irradiation device, more particularly to a pulsed X-ray irradiation device used for active ionizing radiation dosimeter testing. Background technique [0002] Active ionizing radiation dosimeters are widely used in dose monitoring of radiation fields, and their direct-reading display mode and alarm function provide safety guarantee for practitioners. The active ionizing radiation dosimeter has the following problems when measuring the pulsed radiation field dose. First of all, the problem of high dose rate, such as a ms-level radiation pulse, its single pulse dose often reaches 1μSv or even higher, and the instantaneous dose rate of pulse radiation can reach more than 100Sv / h. However, for G-M counters, semiconductor detectors, etc. There are problems of measurement accumulation and detection dead time, and it is difficult to achieve such a high dose rate response, that is, the instrument has an over-res...

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Problems solved by technology

First of all, the problem of high dose rate, such as a ms-level radiation pulse, its single pulse dose often reaches 1μSv or even higher, and the instantaneous dose rate of pulse radiation can reach more than 100Sv / h. However, for G-M counters, semiconductor detectors, etc. There are problems of measurement accumulation and detection dead time, and it is difficult to achieve such a high dose rate response, that is, the instrument has an over-response problem, which will inevitably affect the accuracy of the monitoring results; secondly, the response time problem, active ionizing radiation dosimeters have measurement time Period, the interval between two measurement cycles can reach several seconds. If the pulse radiation happens to happen within the interval of the meter measurement cycle, it is very likely that an omission event will occur, which will greatly affect the accuracy of the measurement results and cause the measurement results to be seriously low; finally, Accident alarm problem, if a large dose of pulse just happens within the measurement interval of the instrument, there will inevitably be a missed report event, which will bring great safety hazards to the radiation practitioners

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