Thallium-doped sodium iodide scintillation crystal radiation detector with high light extraction rate

A technology of radiation detectors and scintillation crystals, which is applied in the measurement field of nuclear radiation or X-ray radiation, can solve problems such as the technology is known to the public, cannot become common knowledge, and undisclosed internal prior technology, etc., to improve time resolution High efficiency and measurement accuracy, reduce the difficulty of research and development, and improve the effect of light extraction rate

Inactive Publication Date: 2020-01-14
刘娟
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  • Abstract
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  • Claims
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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 corre

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  • Thallium-doped sodium iodide scintillation crystal radiation detector with high light extraction rate
  • Thallium-doped sodium iodide scintillation crystal radiation detector with high light extraction rate
  • Thallium-doped sodium iodide 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 It is arranged on the surface S2 other than the scintillation light exit surface, the anti-reflection layer is provided on the scintillation light exit surface S1, the scintillation crystal is a thallium-doped sodium iodide crystal, and the scintillation crystal 1 and the photosensor 2 are arranged in the package casing 4 .

[0023] Thallium-doped sodium iodide is one of the conventional scintillation crystals known in the prior art. The low-energy visible photons generated inside the scintillation crystal are distributed isotrop...

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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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IPC IPC(8): G01T1/202
CPCG01T1/2023
Inventor 刘娟
Owner 刘娟
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