Experimental device for shortening flicker decay time of LYSO crystal, and experimental method thereof

An experimental device and decay time technology, applied in measurement devices, scintillation elements, radiation measurement, etc., can solve the problems of shortening the scintillation decay time, multi-pulse signals cannot be displayed correctly, and the scintillation decay time is long, so as to make up for the lack of heating. Uniformity problem, effect of shortening flicker decay time
CN110646835APending Publication Date: 2020-01-03INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
Publication Date
2020-01-03

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Abstract

The invention discloses an experimental device for shortening flicker decay time of a LYSO crystal, and the experimental device comprises a vertically arranged thermal insulation sleeve, wherein the thermal insulation sleeve comprises a vertically arranged sample placing cylinder, the inner area of the sample placing cylinder is a heating cavity, the sample placing cylinder is made of a thermallyconductive insulating material, a crystal fixing mechanism is provided in the middle of the inner surface of the sample placing cylinder, and heating wires are evenly arranged on the outer surface ofthe sample placing cylinder to form a heating layer. The invention also discloses an experimental method of the above experimental device. The invention detects the flicker decay time of the heated sample crystal by setting a photodetector directly above the sample placing cylinder, and finds that the flicker decay time has changed from the original 36-42ns to 8-12ns, thereby overcoming the technical bias that the persons skilled in the art believe that LYSO crystal flicker cannot be used for high-repetition experiments.
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Description

technical field

[0001] The invention relates to a repetition frequency test device for scintillation crystals, in particular to an experimental device and an experimental method for shortening the scintillation decay time of LYSO crystals. Background technique

[0002] The development of inorganic scintillators with ultra-fast scintillation decay and high light yield has always been an important research direction and hot spot of scintillation materials. After years of development, scientists from various countries have successfully developed many inorganic scintillators with short afterglow, that is, short scintillation decay time. Its decay time is much better than traditional scintillation crystals such as BGO and NaI(Tl).

[0003] ZnO and CuI crystals are the two fastest known scintillation crystals at present, and their scintillation decay time is very short, which can reach the sub-ns level, and can meet the time requirements of X-rays or high-energy electrons with a r...

Claims

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