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Vehicle-mounted gamma full spectrum measurement method

A measurement method, gamma energy spectrum technology, applied in the field of uranium ore exploration, can solve the problems of insufficient gain drift and inability to monitor radionuclides, etc., and achieve the effect of improving the utilization rate of spectral information

Inactive Publication Date: 2019-06-18
BEIJING RES INST OF URANIUM GEOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is currently a commonly used method for gamma energy spectrum measurement. The disadvantage is that there are not enough parameters to monitor the correction quality of gain drift (spectral drift), and it is also unable to monitor other radionuclides existing on site.

Method used

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  • Vehicle-mounted gamma full spectrum measurement method
  • Vehicle-mounted gamma full spectrum measurement method
  • Vehicle-mounted gamma full spectrum measurement method

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] like figure 1 Shown, a kind of vehicle-mounted gamma full-spectrum measurement method, this method comprises the following steps:

[0032] Step 1: Select and debug measuring instruments and vehicles;

[0033] Select vehicle-mounted gamma energy spectroscopy instruments and off-road vehicles. The vehicle-mounted gamma energy spectroscopy instruments generally use more than or equal to 256 channels, probe crystal volume greater than or equal to 4L, and have natural peak automatic spectrum stabilization, automatic reading and storage of full-spectrum data, latitude and longitude, and altitude An instrument with functions such as height data, date and time; in this embodiment, a vehicle-mounted gamma energy spectrometer with 256 channels and a probe crystal volume of 8L is used for measurement. After the selected instrument is as...

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Abstract

The invention belongs to the technical field of uranium ore exploration, and particularly relates to a vehicle-mounted gamma full spectrum measurement method. The method comprises the following stepsof: S1: selecting and debugging a measurement instrument and a vehicle; S2: measuring a model actual measurement full spectrum; S3: determining a standard spectrum and a background spectrum of a measurement system; S4: measuring a field actual measurement full spectrum; S5: carrying out noise reduction processing on actual measurement full spectrum data; S6: carrying out full spectrum analysis calculation and obtaining nuclide content; S7: carrying out rasterization processing on nuclide content data; S8: extracting uranium metallogenesis information; and S9: carrying out delineation on an abnormal prospective area. According to the invention, a spectrum information utilization rate of a vehicle-mounted gamma full spectrum is sufficiently and effectively improved, and vehicle-mounted gammafull spectrum measurement and partitioning of the uranium metallogenesis abnormal prospective area are implemented.

Description

technical field [0001] The invention belongs to the technical field of uranium ore exploration, and in particular relates to a vehicle-mounted gamma full-spectrum measurement method. Background technique [0002] The vehicle-mounted gamma full-spectrum measurement is based on the gamma-ray energy difference of natural radionuclides, using a multi-channel gamma energy spectrometer installed on the car to measure the content of radionuclides such as uranium, thorium, and potassium in surface rocks and soil along the route. method. The focus of vehicle-mounted gamma full-spectrum measurement is spectrum analysis, and the spectrum analysis methods mainly include energy window (or full-energy peak) method and full-spectrum method. The energy window method is a method to calculate the nuclide content or specific activity by setting the energy spectrum segment or track threshold of characteristic energy gamma rays. This method is currently a commonly used method for gamma energy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/167G01T1/36
Inventor 李必红陆士立张玉燕
Owner BEIJING RES INST OF URANIUM GEOLOGY
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