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Cadmium tungstate scintillation crystal radiation detector with high light extraction rate

A radiation detector and scintillation crystal technology, which is applied in the field of nuclear radiation or X-ray radiation measurement, can solve the problems of undisclosed internal prior art, cannot become common knowledge, and the technology is known to the public, etc., so as to improve the light output rate. , the effect of improving time resolution and measurement accuracy, and reducing the difficulty of research and development

Inactive Publication Date: 2020-01-14
刘娟
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] It should be noted that after more than three years of research in this field, the technical team of the applicant has obtained a number of technical achievements. On the same day, an application was filed to combine different technologies to form a patent layout. The existing technologies mentioned in the corresponding background technologies are not necessarily technologies that have been disclosed to the public. Prior art, therefore the technology mentioned in the background art or the claimed prior art cannot be used as evidence that the relevant technology has been known to the public, let alone evidence of common knowledge

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  • Cadmium tungstate scintillation crystal radiation detector with high light extraction rate
  • Cadmium tungstate scintillation crystal radiation detector with high light extraction rate
  • Cadmium tungstate scintillation crystal radiation detector with high light extraction rate

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention will be further described, as figure 2 As shown, a radiation detector with a scintillation crystal on a special light-emitting surface, including a scintillation crystal 1, a light sensor 2, a preamplifier circuit and a multi-channel analyzer 3, the surface of the scintillation crystal is provided with a reflective layer and an anti-reflection layer, and the reflective layer The scintillation crystal is cadmium tungstate crystal, and the scintillation crystal 1 and the light sensor 2 are disposed in the packaging case 4 .

[0023] Cadmium tungstate is one of the conventional scintillation crystals known in the prior art. The low-energy visible photons generated inside the scintillation crystal are distributed isotropically, and can only be detected when the photons exit from the exit surface S1. The idea of ​​superimposing a periodic film material with an optical thickness has been redesigned. Throug...

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Abstract

The invention relates to a scintillation crystal radiation detector with the high light extraction rate. According to the invention, the conception of designing the film layer in a targeted manner iscarried out aiming at the main emergent waveband of the scintillation crystal, the difficulty that the film research data volume is too large and is difficult to analyze is overcome, and a proper reflective film layer material is obtained; the detector has good adhesion with the crystal, the film layer number is less and is easy to realize, and the measurement efficiency and the measurement precision are correspondingly improved.

Description

technical field [0001] The present invention relates to the measurement of nuclear radiation or X-ray radiation, in particular to the measurement of X-ray radiation, γ-ray radiation, particle radiation or cosmic ray radiation, in particular to a scintillation detector in which the scintillator is a crystal in radiation intensity measurement. Background technique [0002] Radiation measurement has played an important role in many fields, such as nuclear power plant radiation measurement, continuous measurement of radiation dose at the measurement site; industrial and civil buildings, building decoration, production and manufacturing of building materials, radioactivity measurement of various building materials; Geological exploration, geological prospecting and mine radiation measurement; used for ray security inspection access doors, which can provide assistance for customs, airports, border inspections, and security inspections of important meeting places; radiation measurem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/202
CPCG01T1/2023
Inventor 刘娟
Owner 刘娟
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