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A method for sorting radioactive sources in radioactivity measurement

A radioactive measurement and radioactive source technology, which is applied in X-ray energy spectrum distribution measurement, sorting and other directions, can solve the problems of inability to carry out nuclear material sorting, low sorting accuracy, and difficulty in training, saving training time and points. The effect of picking time, high sorting accuracy and accurate convergence

Inactive Publication Date: 2016-08-17
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

These methods have disadvantages such as difficult to train, or difficult to converge, or converge to a local minimum, resulting in the inability to sort nuclear materials or the low accuracy of sorting, so it is necessary to find a method that can save training time and avoid failure The method of convergence or partial convergence enables the sorting to proceed smoothly and guarantees a higher sorting accuracy

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  • A method for sorting radioactive sources in radioactivity measurement
  • A method for sorting radioactive sources in radioactivity measurement
  • A method for sorting radioactive sources in radioactivity measurement

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Embodiment Construction

[0016] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, and the flow process of the present invention is as follows figure 1 As shown, the specific steps are described in steps ① to ③ below.

[0017] ① Before sorting, measure the energy spectrum of various radioactive sources, select the spectral segment where the spectral peak of the radioactive source is located, and calculate the standard mean and variance of various radioactive sources for comparison in these spectral segments. Selecting the spectral segment where the spectral peak of the radioactive source is located refers to selecting the site area where the spectral peak of the radioactive source is located. For a radioactive source with multiple spectral peaks, a corresponding spectral segment must be selected for each spectral peak. To obtain the standard mean and variance values ​​of various radioactive sources for comparison, follow steps A to C a...

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Abstract

The invention discloses a radioactive source sorting method for radioactivity measurement. Before sorting, various radioactive sources are subjected to energy spectrometry, peaked spectral bands of the radioactive sources are selected and standard averages and variances for comparison of the various radioactive sources are obtained within the spectral bands. The radioactive sources to be sorted are subjected to radioactivity energy spectrometry within the selected spectral bands, and averages and variances thereof within the spectral bands are obtained. The obtained averages and variances of the radioactive sources to be sorted are compared with the standard averages and the variances, so that sorting of the radioactive sources is achieved. Accuracy in sorting the radioactive sources by the method is high, and radioactive source sorting method for radioactivity measurement is effective in sorting of the radioactive sources.

Description

technical field [0001] The invention relates to a radioactive source sorting method in radioactivity measurement. Background technique [0002] In the measurement of radioactive energy spectrum, it is often necessary to perform radioactive energy spectrum analysis, that is, after smoothing and filtering the measured energy spectrum, subtracting the background, finding peaks, and calculating the net peak area, etc., according to the energy, peak shape, etc. And the results of the efficiency scale, the radionuclides contained in the radioactive source can be known from the energy corresponding to the peak position, and the activities of these radionuclides can be calculated from the net peak area. However, in some applications, due to the protection of nuclear information, it is not necessary to obtain accurate results of nuclide activity, and it is only necessary to know the type of nuclear material tested, that is, to realize the sorting of nuclear materials. For this reaso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07C5/34G01T1/36
Inventor 黄洪全丁卫撑王超
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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