Airborne γ Spectroscopy Analysis Method Based on Multi-Energy Response
A multi-energy, gamma energy spectrum technology, applied in the field of energy spectrum analysis, can solve the problems of low accuracy and stability, and achieve the effect of improving detection ability and high measurement accuracy
Active Publication Date: 2022-06-28
核工业航测遥感中心
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[0004] This application provides an airborne gamma energy spectrum analysis method based on multi-energy response to solve the problem of low accuracy and stability of the current energy spectrum analysis method
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[0085] refer to figure 1 and figure 2 , figure 1 A schematic diagram of the overall flow of an aviation gamma energy spectrum analysis method based on multi-energy response provided in the embodiment of the present application, figure 2 A schematic flow chart of the specific implementation of the multi-energy response-based aviation gamma energy spectrum analysis method provided in the embodiment of the present application.
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This application relates to an airborne gamma energy spectrum analysis method based on multi-energy response. Among them, the energy spectrum data of different energies (that is, multi-energy) γ-rays are first collected, and then background correction, energy window stripping correction and height attenuation correction are performed on each count rate in the energy spectrum data in turn, and then the sensitivity conversion algorithm is used to convert The count rates corrected for height attenuation were unified to the same unit to obtain the analysis results. Such a setting can improve the detection ability of the UAV aviation γ-ray spectrometer for multi-energy γ-ray nuclides, solve the problem of determining the correction coefficient of the original data during ground and air measurements, and give the results of ground and air measurements; Further popularize and apply gamma energy spectrum measurement in surface and underground drilling work. Compared with the existing method, this method can analyze multiple gamma-ray energy windows at the same time, and the measurement accuracy is higher; compared with the full-spectrum analysis method, this method can avoid the influence of some interference spectrum segments on the measurement results.
Description
technical field [0001] The present application relates to the technical field of energy spectrum analysis, and in particular, to an airborne gamma energy spectrum analysis method based on multiple energy responses. Background technique [0002] Aeronautical gamma energy spectrum measurement is to install a large gamma energy spectrometer on mobile platforms such as airplanes and motorboats, and use the method of flying and measuring to obtain the gamma ray energy spectrum and the corresponding auxiliary data on the track route of the mobile platform. method. This method was mainly used for uranium exploration in the early days, and then gradually developed into basic geological surveys, radiation environment surveys, and nuclear emergency monitoring. complex. [0003] In recent years, UAV aviation gamma spectrometers based on UAVs have emerged, from large manned platforms such as fixed-wing aircraft and rotary-wing helicopters to unmanned intelligent platforms (ie: UAVs). ...
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IPC IPC(8): G01T1/36G01T1/40G01T7/00
CPCG01T1/36G01T1/40G01T7/00G01T7/005
Inventor 高国林管少斌李江坤胡明考唐晓川孙海仁杜明昌
Owner 核工业航测遥感中心