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Aerial radiation monitoring method

A radiation monitoring and aviation technology, applied in the field of aviation radiation monitoring, to achieve the effect of improving calculation accuracy

Inactive Publication Date: 2018-01-30
NUCLEAR & RADIATION SAFETY CENT
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Problems solved by technology

[0007] At present, some people in China have carried out G-function calibration (spectral response is a ray energy function) for aerial surveys, and have begun to use experimental methods to carry out experimental calibration of G-function and angular response for aerial spectrometers. However, due to experimental conditions and other factors, they are all static and simulated real scenes. The experimental work is far from the actual work

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Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] In the following description, references to "one embodiment," "an embodiment," "an example," "example," etc. indicate that such described embodiment or example may include a particular feature, structure, characteristic, property, element, or limitations, but not every embodiment or example necessarily includes the specific feature, structure, characteristic, property, element or limitation. Additionally, repeated use of the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may.

[0027] For simplicity, some technical features known to those skilled in the art are omitted from the following description.

[0028] According to the principle of aerial survey, the spectral response of the aerial...

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Abstract

The invention provides an aerial radiation monitoring method. The method comprises the following steps of setting one group of heights H1, H2, ...Hm in an aerial radiation monitoring height range; selecting one group of gamma ray radiation sources and corresponding gamma nuclide energy E1, E2, ...En; using an aerial radiation data monitoring device to collect data at the different heights H1, H2,...Hm; processing the data and establishing a gamma energy spectrum two-dimensional G function, wherein two dimensions are ray energy and the height; and through the gamma energy spectrum two-dimensional G function, calibrating aerial radiation monitoring. In the technical scheme, a spectrum two-dimensional (the ray energy and the height) response analysis method is introduced and a full power spectrum solution spectrum idea is combined to calculate a gamma air absorption dose rate so that calculating precision of an existing aerial spectrum instrument system on a radiation environment gamma dose rate is improved.

Description

technical field [0001] The invention relates to the technical field of environmental radiation monitoring, in particular to an aviation radiation monitoring method. Background technique [0002] Aviation radiation survey is currently carried out by using aviation gamma energy spectrometer (large-volume NaI multi-channel spectrometer) mounted on fixed-wing aircraft or helicopter to monitor radiation in the air. It is a relatively superior and efficient means in the current nuclear and radiation environmental monitoring, which can realize three-dimensional monitoring and monitoring of space in the environment. It has obvious advantages such as fast monitoring speed and wide range, and can play an important role in the investigation of environmental radiation levels and emergency monitoring of nuclear and radiation accidents. At present, my country's aerial survey of nuclear power plants, nuclear facilities, nuclear technology utilization units, and public radiation environmen...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/36
Inventor 韩善彪杨斌岳会国侯杰吕雪艳王尔奇张庆华
Owner NUCLEAR & RADIATION SAFETY CENT
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