Non-sedimentary radionuclide distribution investigation technology and equipment

Abstract

The invention discloses a non-sedimentary radionuclide distribution investigation technology and equipment, the equipment comprises a sandy soil density measurement device and a layer-by-layer stripping measurement model, the sandy soil density measurement device is composed of a rectangular support, a sliding plate, a detector, a mixing point source, a sleeve, a drill rod and a handle, the layer-by-layer stripping measurement model comprises a detector, air, a sandy soil attenuation layer, a virtual surface source and a body source. The novel technology and the novel method for determining the distribution depth by researching the double-peak ratio greatly improve the pertinence and the accuracy of measurement. The invention designs and manufactures a special density measuring device on site, and the device can quickly and accurately give density parameters of a measured object on site, so that the sampling and measuring process is omitted, the expenditure is greatly reduced, and the workload and time are reduced. The method is mainly an innovation of < 239 > Pu and < 241 > Am nuclides, so that the method has universality for other conditions that multiple energy rays are emitted and multiple nuclides coexist in proportion, and is very wide in application range.

Description

technical field [0001] The invention relates to a detection technology for the distribution of non-sedimented radioactive nuclides in the application field of radiation protection (ray detection) technology, in particular to a detection and investigation technical method, program and detection equipment for polluted areas where measurement objects are not distributed according to the law. Background technique [0002] In the earth's environment, with the development of global nuclear energy, radionuclides are released into the atmosphere from nuclear reactors or in × test explosions, diffuse with the atmosphere, and accumulate continuously on the surface of the environment, and their concentrations become higher and higher . This deposited nuclide also migrates and diffuses below the surface over time. Deposited radionuclides generally have definite distribution rules, and mature investigation techniques and methods. However, there are few studies on the distribution of no...

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Problems solved by technology

However, there are few studies on the distribution of non-sedimentary radionuclides, such as waste bins, bulldozing and landfill damaged or disturbed sedimentary pollution sites, etc.

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