Thallium-doped sodium iodide scintillation crystal radiation detector with lens group

A technology of radiation detectors and scintillation crystals, which is used in the measurement of nuclear radiation or X-ray radiation, can solve the problems of undisclosed internal prior technology, cannot become common knowledge, and technology is known to the public, so as to improve energy resolution Rate, improve measurement efficiency and measurement accuracy, improve the effect of detection performance

Inactive Publication Date: 2020-02-25
魏海清
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  • Description
  • Claims
  • Application Information

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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 cor...

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  • Thallium-doped sodium iodide scintillation crystal radiation detector with lens group
  • Thallium-doped sodium iodide scintillation crystal radiation detector with lens group
  • Thallium-doped sodium iodide scintillation crystal radiation detector with lens group

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention will be further described, as figure 2 As shown, a scintillation crystal radiation detector with a lens group includes a scintillation crystal 1, a light sensor 2, a preamplification circuit and multi-channel analyzers 3 and 5, and the surface of the scintillation crystal is provided with a reflective layer and an anti-reflection layer, and the reflective The layer 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, the scintillation crystal is a thallium-doped sodium iodide crystal, and the scintillation crystal 1 and the photosensor 3 are arranged in the packaging case 4 Among them, the multi-channel analyzer is arranged outside the casing, and a lens group L matching the wavelength band of the scintillation light of the thallium-doped sodium iodide crystal is provided between the scintillation l...

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Abstract

The invention relates to a scintillation crystal radiation detector with a lens group. A matched wide-angle and large-depth-of-field lens group is constructed, the collection efficiency of an opticalsensor on scintillation light is improved, the energy resolution is improved, the specific parameter design considers the matching with an emergent wave band of a scintillation crystal, an incident light sensor after the scintillation light is focused and collected can be increased, the energy resolution is improved, the measurement efficiency and the measurement precision are correspondingly improved, and particularly, the detection performance can be further improved 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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IPC IPC(8): G01T1/202G01T1/20
CPCG01T1/2023G01T1/2002
Inventor 魏海清
Owner 魏海清
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