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Radiation detector for cadmium trngstate scintillation crystals with special light emerging surfaces

A radiation detector and scintillation crystal technology, applied in the field of measurement of nuclear radiation or X-ray radiation, 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 detection performance , The effect of improving measurement efficiency and measurement accuracy, and increasing the probability of exit

Inactive Publication Date: 2020-02-21
魏娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 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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  • Radiation detector for cadmium trngstate scintillation crystals with special light emerging surfaces
  • Radiation detector for cadmium trngstate scintillation crystals with special light emerging surfaces
  • Radiation detector for cadmium trngstate scintillation crystals with special light emerging surfaces

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Embodiment Construction

[0023] 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 It is arranged on the surface S2 except the scintillation light exit surface, the anti-reflection layer is arranged on the scintillation light exit surface S1, and the scintillation crystal is cadmium tungstate CdWO4 crystal.

[0024] CdWO4 cadmium tungstate is one of the conventional scintillation crystals known in the prior art. Its refractive index is 2.3 and its peak wavelength is between 470 and 540nm. The low-energy visible photons generated inside the crystal are distributed isotropically, and the visible photons generated ...

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Abstract

The invention relates to a radiation detector for scintillation crystals with special light emerging surfaces. Shapes of the light emerging surfaces of the scintillation crystals are optimized; an optical light guide structure is formed by an emerging end of each scintillator; the specific shape design of the light emerging surfaces considers matching of a refractive index and an emerging wavebandof the scintillation crystals; an emerging probability of emergent light totally reflected when emerging for the first time in the prior art can be improved; measurement efficiency and measurement accuracy are improved; and particularly, when a high-performance detector is developed, detection performance can be further 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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IPC IPC(8): G01T1/202
CPCG01T1/202G01T1/2023
Inventor 魏娟
Owner 魏娟
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