Method and apparatus for reconstructing particle track, and inspection method and inspection device

A particle and equipment technology, applied in the field of radiation detection, can solve the problems of poor positioning accuracy and reconstruction effect, errors, etc.

Pending Publication Date: 2019-01-29
NUCTECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This track reconstruction method is too dependent on experience. When the initial value deviates greatly or the performance o

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  • Method and apparatus for reconstructing particle track, and inspection method and inspection device

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Embodiment Construction

[0094] Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described here are only for illustration, not for limiting the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In other instances, well-known structures, materials or methods have not been described in detail in order to avoid obscuring the present invention.

[0095] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present invention. In at least one embodiment. Thus, appearances of the phrases "in ...

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Abstract

A method and apparatus for reconstructing a track of cosmic ray particles, and an inspection method and inspection apparatus are disclosed. The method includes: detecting cosmic ray particles by usinga cosmic ray particle detector, wherein the cosmic ray particle detector includes at least one scintillator and a plurality of drift tubes, and charged particles in at least two of the plurality of drift tubes are drifted under the action of the cosmic ray particles; using at least one scintillator to record the time null point of the cosmic ray particles incident on the cosmic ray particle detector; calculating the drift time of the charged particles in the at least two drift tubes according to the time null point; determining positions at which the cosmic ray particles are incident on the at least two drift tubes on the basis of the calculated drift time; and fitting the track of the cosmic ray particles according to the determined positions at which the cosmic ray particles are incident on the at least two drift tubes.

Description

technical field [0001] The present disclosure relates to radiation detection technology, in particular to a method and device for reconstructing the track of cosmic ray particles, and a device and method for inspecting inspected objects such as container trucks. Background technique [0002] Cosmic ray imaging technology uses cosmic rays that naturally exist in nature as radiation sources, has strong penetrating power, and has no external radiation. It has been proven that it can be used to inspect high atomic number materials such as nuclear fuel, nuclear waste, and shielding, as well as drugs, explosives, etc. - Low atomic number materials. [0003] The key to cosmic ray inspection and material identification lies in the method of track reconstruction of cosmic ray particles. The current track reconstruction method mainly obtains the optimal solution through linear fitting and iterative algorithm, and the initial value of the iterative is selected empirically. This track...

Claims

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Application Information

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IPC IPC(8): G01V5/00G01N23/10
CPCG01N23/10G01V5/0016
Inventor 于昊刘必成易茜王永强曾鸣宫辉李荐民孙尚民李元景陈志强
Owner NUCTECH CO LTD
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