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Gas radiation detector and radiography system

A technology of radiation detector and gas, which is applied in radiation measurement, X/γ/cosmic radiation measurement, material analysis using radiation, etc. It can solve the problems of difficult preparation and achieve convenient operation, high consistency and long service life Effect

Active Publication Date: 2009-11-11
NUCTECH CO LTD +1
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  • Abstract
  • Description
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Problems solved by technology

[0009] Another object of the present invention is to provide a gas detector, which can overcome the shortcomings of low-energy solid detectors that are too thin and difficult to prepare, and at the same time realize multi-energy detection in one gas chamber, which is easy to operate and greatly improves the performance of each detector. The consistency of the channel signal also meets the requirements of long life and low cost of the detector

Method used

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  • Gas radiation detector and radiography system
  • Gas radiation detector and radiography system
  • Gas radiation detector and radiography system

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Embodiment approach

[0032] According to an embodiment of the present invention, the opposite electrode plates of each pair of electrodes in the plurality of sub-electrode pairs are substantially parallel to each other. That is, each section of the charge collecting anode plate 3 is substantially parallel to each section of the cathode plate 4, alternatively, each section of the charge collecting anode plate 3 and the corresponding section of the cathode plate 4 may form an acute angle.

[0033]According to an aspect of the present invention, one electrode plate of each pair of electrodes in the plurality of sub-electrode pairs is substantially in one plane, and the other electrode plate of each pair of electrodes in the plurality of sub-electrode pairs is substantially in another plane. That is, each segment of the charge collecting anode plate 3 is substantially in one plane, and each segment of the cathode plate 4 is substantially in one plane. Alternatively, the segments of the charge collect...

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Abstract

The invention relates to a gas radiation detector, which comprises an electrode couple comprising a plurality of sub-electrode couples arranged along the incident direction of rays. The gas radiation detector achieves the function of measuring a plurality of energy rays at the same time in a same gas chamber, has the advantages of low material cost, simple geometrical structure, simple operation and long service life, can flexibly adjust the types and the pressure of gas according to applied ray energy ranges so as to achieve high detection efficiency, and solves the problem that a low-energy detector of a dual-energy solid detector is extremely thin and is difficult to manufacture; besides, the same gas chamber ensures high consistency of all paths of signals and simple subsequent data processing. The gas radiation detector can be widely applied to the field of radiography.

Description

technical field [0001] The invention relates to a gas radiation detector and a radiation imaging system. Background technique [0002] In the field of nuclear radiation detection and nuclear technology applications, it is often necessary to simultaneously detect several gamma rays or X-rays with different energies. Especially in the field of radiation imaging, rays with different energies have different reaction mechanisms with different components in the object to be inspected. The detection of dual-energy or multi-energy gamma rays or X-rays can not only obtain the projection image due to the different density of the object to be inspected, but also The distribution of the Z value of the detected object can be calculated to distinguish between metals and organic substances, drugs, explosives and other dangerous and prohibited items. [0003] Considering the ray source, dual-energy and multi-energy images can be obtained in the following ways: gamma ray sources with differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/083G01N23/04
CPCG01T1/185
Inventor 张岚李元景刘以农赵自然刘文国吴万龙姚楠陈雅薇王永强王清华
Owner NUCTECH CO LTD
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