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Radiation detector with europium-doped calcium fluoride scintillation crystal with special light-emitting surface

A technology of radiation detectors and scintillation crystals, which is applied in the field of nuclear radiation or X-ray radiation measurement, can solve the problems of undisclosed internal prior technology, cannot become common knowledge, and technology is known to the public, so as to improve the detection performance , Improve measurement efficiency and measurement accuracy, increase the effect of 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 with europium-doped calcium fluoride scintillation crystal with special light-emitting surface
  • Radiation detector with europium-doped calcium fluoride scintillation crystal with special light-emitting surface
  • Radiation detector with europium-doped calcium fluoride scintillation crystal with special light-emitting surface

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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 Europium-doped calcium fluoride CaF2 (Eu) crystal.

[0024] CaF2 (Eu) europium-doped calcium fluoride is one of the conventional scintillation crystals known in the prior art. Its refractive index is 1.47 and its peak wavelength is 435nm. When the photons reach the end flashing light exit surface S1, affected by the transmittance of the lig...

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Abstract

The invention relates to a radiation detector with a scintillation crystal with a special light-emitting surface. A shape of the light-emitting surface of the scintillation crystal is optimized, an optical light guide structure is formed by a light-emitting end of a scintillator, the specific shape design considers the matching between the refractive index and the light-emitting wave band of the scintillation crystal, the light-emitting probability of the emergent light which is totally reflected and emitted for the first time in the prior art can be increased, the measurement efficiency and the measurement precision are improved, and the detection performance can be further improved particularly when a high-performance detector is developed.

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
CPCG01T1/202G01T1/2023
Inventor 魏娟
Owner 魏娟
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