Energy response correction method for a direct-reading electronic personal dosimeter
An energy-responsive, direct-reading technology, used in instruments, radiation measurement, etc., can solve problems such as not meeting basic requirements, and achieve the effect of improving measurement accuracy
Active Publication Date: 2018-04-06
四川中测辐射科技有限公司
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Problems solved by technology
Due to factors such as power consumption and cost, this method does not meet the basic requirements of direct-reading electronic personal dosimeters
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[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although the present invention will be described and illustrated in conjunction with some specific embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, any modification or equivalent replacement made to the present invention shall be included in the scope of the claims of the present invention.
[0034]The invention adopts the method of identifying the characteristic energy of the radiation field to complete the energy response correction of the direct-reading electronic personal dosimeter. The method uses a combination of composite filter material, multi-channel acquisition technology and channel ratio method to achieve accurate measurement of personal dose equivalent Hp(10) parameters within the energy range of 50keV-1.25MeV. The direct-reading electronic personal dosimeter ...
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The invention discloses an energy response correction method of a direct-reading electronic personal dosimeter.The method includes the following steps that by means of the mode that the compound screen detection technology, the multi-channel acquisition technology and the channel ratio method are combined, precise measurement of equivalent parameters of personal dosage is completed; compound screen materials with different thicknesses are stacked on the direct-reading electronic personal dosimeter through a semiconductor detector, and the channel ratio, ray energy information and the number of channels are converted into scales of a standard dosage in an intermediate-energy radiation field and 137Cs and 60Co radiation protection laboratories; relative scale coefficients are placed in the dosimeter, the personal dosage of the dosimeter is measured in a table-lookup mode, energy response correction of the direct-reading electronic personal dosimeter is completed, and the capacity of recognizing radiation field energy feature information is improved.According to the method, a multi-channel detection system combining the compound screen detection materials and the Si-PIN semiconductor detector is adopted, and energy response correction of the direct-reading electronic personal dosimeter is finished by recognizing radiation field ray energy information.
Description
technical field [0001] The invention relates to the field of ionizing radiation monitoring, in particular to an energy response correction method of a direct-reading electronic personal dosimeter. Background technique [0002] Personal dosimeter is an electronic instrument used to monitor the dose equivalent rate and dose equivalent of X-rays and gamma rays when irradiating the human body. It is widely used in nuclear power plants, nuclear submarines, irradiation stations, customs, isotope applications, industrial X-rays, gamma rays In the fields of non-destructive testing, radiation medicine, cobalt source therapy, gamma irradiation, radioactive laboratories, monitoring of the surrounding environment of nuclear facilities, etc., personal safety protection monitoring and radiation reminders are carried out for staff. The personal dosimeter is an intelligent pocket instrument, which is made of powerful low-power single-chip microcomputer technology. Within the measurement ran...
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IPC IPC(8): G01T7/00
CPCG01T7/005
Inventor 黄平张友德龚岚熊秋风
Owner 四川中测辐射科技有限公司