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Radiation detector and radiation detection device

A radiation detector and radiation detection technology, applied in the direction of X-ray energy spectrum distribution measurement, etc., can solve the problems of insignificant improvement of energy resolution, complicated manufacturing process, complicated electrode structure, etc., so as to improve energy resolution and improve detection. Efficiency, the effect of high energy resolution

Active Publication Date: 2014-07-09
NUCTECH CO LTD +1
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Problems solved by technology

However, the structure of these electrodes is relatively complex, the manufacturing process is complicated, and it brings difficulties to the subsequent readout electronics design, which is not conducive to the manufacture of portable gamma spectrometers.
Or these electrode structures limit the detection efficiency of semiconductor radiation detectors, and the improvement of energy resolution is not obvious

Method used

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  • Radiation detector and radiation detection device

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Embodiment Construction

[0032] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, and those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0033] figure 1 is a schematic schematic diagram of a radiation detector according to a preferred embodiment of the present invention. The radiation detector 100 includes a semiconductor crystal 101 , a cathode 102 , a first anode 103 and a second anode 104 . The semiconductor crystal 101 senses X-rays or γ-rays.

[0034] exist figure 1 In the example of , the semiconductor crystal 101 is composed of CdZnTe (CZT). However, the material of the semiconductor crystal 101 is not limited thereto, but may be selected from HgI 2 , GaAs, CdTe, C...

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Abstract

The invention discloses a radiation detector and a radiation detection device comprising the radiation detector. The radiation detector comprises a semiconductor crystal used for sensing radiation, a first anode arranged on the top surface the semiconductor crystal, a second anode arranged on the bottom surface of the semiconductor crystal, and one cathode on at least one side face of the semiconductor crystal. The semiconductor crystal comprises the top surface, the bottom surface and at least one side face. The radiation detection device comprises the radiation detector and a signal processing circuit. The radiation detector achieves the feature of singly-charged flexibility by utilizing the double-anode structure which is simple, and energy resolution is improved.

Description

technical field [0001] The present invention relates to a radiation detector and a radiation detection device including the radiation detector, more particularly to a CdZnTe (CZT) detector and a detection device for X-ray or gamma ray energy spectrum measurement or imaging. Background technique [0002] Radiation detectors can measure the energy spectrum of, for example, X-rays or gamma-rays and are therefore one of the main means of nuclide identification. Radiation detectors have been widely used in nuclear radiation protection, nuclear security inspection, environmental protection and homeland security to detect radioactive substances. At present, radiation detectors can be mainly divided into two categories: one is a scintillator detector represented by NaI(T1), and the other is a semiconductor radiation detector represented by high-purity germanium (HPGe). [0003] Scintillator detectors have the advantages of low price and simple preparation. However, the energy reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/36
Inventor 李玉兰张岚李元景刘以农牛莉博傅楗强江灏张韡刘延青李军
Owner NUCTECH CO LTD
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