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Radiation imaging array solid detector

A radiation imaging and detector technology, applied in the field of radiation detection, can solve the problems of difficult processing and large dead zone of the detector, and achieve the effects of simple processing technology, simplified processing technology, and convenient fault inspection.

Active Publication Date: 2008-12-24
TSINGHUA UNIV +1
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Problems solved by technology

Although the solid-state detector array composed of this patented technology has the advantages of small size, light-proof, moisture-proof, vibration-proof, convenient installation and maintenance, and high detection efficiency, its disadvantage is that the array detector composed of this method has the advantages of small size. The lower process is difficult to process, and the dead zone between the detectors is large

Method used

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Embodiment Construction

[0016] see Figure 1 to Figure 5 , the present invention includes a scintillation crystal 11 formed of cesium iodide or cadmium tungstate and a photodiode 7 coupled thereto contained in a casing. The housing is composed of a metal cover plate 1, a metal base plate 9, a front end cover 4, a rear end cover 10 and two side plates 12. The metal cover 1 is provided with a plurality of slots 2, and the slots 2 are provided with partitions 13 made of heavy metal materials, which separate the scintillation crystals 11 to form a plurality of solid detectors. A bottom rubber pad 6 is placed between the metal bottom plate 9 and the photodiode 7, and the insulators 8 of each solid detector pass through the metal bottom plate 9 and the bottom rubber pad 6 to lead out the two poles of the photodiode 7. Side rubber pads 5 are placed between the front end cover 4 , the rear end cover 10 , the scintillation crystal 11 , and the end faces of the photodiode 7 . The photodiode 7 is integrally c...

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Abstract

The present invention belongs to the field of radiation detection technology. The radiation imaging array solid detector includes flash crystal of cesium iodide or cadmium tungstate, photodiode coupled with the flash crystal and casing holding the flash crystal and the photodiode. The casing consists of metal cover plate, metal bottom plate, front end cover, back end cover and two side plates. The metal cover plate is provided with several slots for heavy metal partitions to set in and to separate flash crystals to form several solid detectors. The photodiode is led out through insulators penetrating the metal bottom plate and rubber pad, and there are rubber pads for insulation between different parts. Compared with available technology, the present invention has high detection efficiency, simple production process, less dead area and other advantages.

Description

technical field [0001] The invention relates to an X and gamma radiation imaging array solid detection device, which belongs to the technical field of radiation detection. Background technique [0002] In the prior art, Chinese patent 95219469.4 discloses a pen-type radiation imaging gas detection device. Although this patented technology has the advantages of better detection efficiency, better sensitivity, radiation resistance, and long self-collimation working life, its disadvantages But the size is large, the detector installation requires a large space, and the detection efficiency is still not ideal. In order to reduce the volume of the detector and improve the detection effect. Chinese patent 01259228.5 discloses a cobalt 60 gamma ray source-cesium iodide or cadmium tungstate detector container inspection system, wherein the detector used is a solid detector coupled with a crystal and a photodiode. In the way of solidifying the crystal and the photodiode, reflective...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/04
Inventor 李元景张清军高文焕代主得曹贵禄赵书清
Owner TSINGHUA UNIV
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