Cadmium tungstate scintillation crystal radiation detector coated with high refleting film and special light emitting surface

Abstract

The invention relates to a cadmium tungstate scintillation crystal radiation detector coated with a high refleting film and a special light emitting surface. The invention designs a film layer for themain emitting band of the scintillation crystal itself in a targeted manner, and overcomes the difficulty that the amount of research data of the film layer is too large to analyze, and obtains a suitable reflective film layer material, which not only has good adhesion to the crystal, but also has a small number of film layers and is easy to implement. The invention further provides a special light emitting surface design matching with the total reflection coating scheme, and accordingly improves the measurement efficiency and measurement accuracy.

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...

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Problems solved by technology

[0010] 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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