Light guide layer of air light guide plastic flash detector and manufacturing method thereof

A light guide layer and detector technology, which is applied in the field of large-area radiation detectors, can solve the problems of large differences in point light collection efficiency, achieve good consistency, meet mass production requirements, and have a high degree of automation

Inactive Publication Date: 2020-03-06
MIANYANG WEIBO ELECTRONICS
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the large difference in light collection efficiency of each poi

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  • Light guide layer of air light guide plastic flash detector and manufacturing method thereof
  • Light guide layer of air light guide plastic flash detector and manufacturing method thereof

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Embodiment Construction

[0027] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0028] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from the scope of this description. Therefore, the protection scope of the present invention is not limited by the following disclosure. limitations of specific examples.

[0029] Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front",...

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Abstract

The invention discloses a light guide layer of an air light guide plastic flash detector and a manufacturing method thereof. The invention relates to the field of large-area radiation detectors. According to light collection efficiency normalization factors of all points on the surface of a scintillation sheet of the detector, the characteristics of a light path of a Teflon film base material arechanged by adopting a UV photoetching technology. Different transmission and reflection ratios are formed at different positions of a Teflon film by adopting fixed photoetching time in each area of the Teflon film and overlapping the areas. After a light guide layer is used, the long-distance point light collection efficiency of the existing air light guide plastic flash detector is increased. Meanwhile, the supersaturated light collection efficiency of close-range points is reduced, and finally the light collection efficiency of all the points is consistent. According to the invention, the uniformity deviation of the detector with the area of 350 mm*150 mm is reduced to +/-15% and +/-25% from +/-80%, and meanwhile the overall detection efficiency of rays is kept unchanged; the light guidelayer is manufactured through machine photoetching; the manufacturing method is high in automation degree and good in consistency, and meets the requirement for batch production.

Description

technical field [0001] The invention relates to the field of large-area radiation detectors, in particular to a light guide layer of an air light guide plastic scintillation detector and a manufacturing method thereof. Background technique [0002] Large-area plastic scintillation detector is a new type of radiation detector developed in recent years. Its main features are high detection efficiency, fast response time (<10ns), strong output signal, easy to enlarge the detection area, strong environmental adaptability, light weight. The basic working principle of the detector is that when the plastic scintillator of the detector is subjected to ionizing radiation, its scintillator atoms or molecules are excited to produce fluorescence, which is then converted into visible light by wave shifting, and the light collection components such as light guides and reflectors are used to make large As many photons as possible are generated on the plastic flash sheet with a large ar...

Claims

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Application Information

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IPC IPC(8): G01T1/203G03F7/00
CPCG01T1/2002G01T1/2033G03F7/00
Inventor 姚飞张锐蒋伟李进侯鑫甘霖曹舟
Owner MIANYANG WEIBO ELECTRONICS
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