Gamma radioactive source and electron linear accelerator machine room radiation shielding calculation method and device

Abstract

The invention discloses a gamma radioactive source and electron linear accelerator machine room radiation shielding calculation method and device, and the method comprises the steps: designing an application program through an MFC-Microsoft basic class library, and achieving the method based on the application program: S101, designing a target value according to the dose rate of a machine room, respectively carrying out radiation shielding design on main shielding, secondary shielding, mazes, protective doors and roofs of the gamma radioactive source machine room and the electron linear accelerator machine room; and S102, selecting concern points outside the main shield, the secondary shield, the maze, the protective door and the roof of the gamma radioactive source machine room and the electron linear accelerator machine room, calculating the dose rate of each concern point according to the machine room shielding design parameters, and verifying the radiation shielding effect. According to the invention, the radiation shielding design and shielding effect verification of the machine room can be completed quickly and accurately.

Description

technical field [0001] The invention relates to the application field of nuclear technology, in particular to a radiation shielding calculation method and device for a gamma radiation source and an electron linear accelerator machine room. Background technique [0002] In recent years, gamma radiation sources and electron linear accelerators have been widely used in industry, agriculture, medical care and other fields, creating huge economic and social benefits, and have become an important branch of nuclear technology application fields. Gamma radiation sources are mainly artificial radioactive isotopes 60Co, 192Ir, 137Cs, etc. Electron linear accelerators mainly include radiation accelerators, flaw detection accelerators, container inspection accelerators, and medical accelerators according to their application fields. [0003] Gamma radiation sources and electron linear accelerators are usually installed in computer rooms with certain radiation protection functions. The r...

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Problems solved by technology

[0005] Currently, NCRP 49, 51, 151 reports, IAEA 47 report, national standard GBZ / T201, etc. have given the radiation shielding theoretical calculation methods for gamma radiation source computer rooms and electron linear accelerator computer rooms. In the actual application process, the following problems are faced: theoretical calculation method model Complicated, the formula structure is complex and cumbersome. Without professional learning or training, the calculation model is difficult to understand; there are many parameters required for calculation, and parameter query is difficult, time-consuming and error-prone. Traditional manual calculation affects calculation efficiency and reliability of results

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