Gas radiation detector and radiation imaging system

Abstract

The invention discloses a gas radiation detector which comprises an electrode pair, wherein the electrode pair comprises a plurality of sub-electrode pairs which are arranged along the incident direction of a ray and used for respectively detecting rays in different energy regions. The invention can realize the function of simultaneously measuring rays in different energy regions in the same gas chamber with low material cost, simple geometric structure, convenient operation, and long service life; the gas sort and pressure can be flexibly adjusted according to the applied ray energy interval to achieve high detection efficiency, thereby solving the problem that the low-energy detector of a dual-energy solid detector is too thin to manufacture; and meanwhile, the same gas chamber can guarantee the high consistency of the signals, and the follow-up data processing is simple. The gas radiation detector can be widely applied to the radiation imaging field.

Description

[0001] This application is a divisional application of the patent application with the application number 200810106280.9, the title of the invention is "Gas Radiation Detector and Radiation Imaging System", and the filing date is May 9, 2008. technical field [0002] The invention relates to a gas radiation detector and a radiation imaging system. Background technique [0003] 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 distingu...

AI Technical Summary

Problems solved by technology

[0010] 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

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