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Scintillation crystal packaging method, scintillation crystal packaging structure and application thereof

A technology of scintillation crystal and packaging method, which is applied in the direction of measuring devices, instruments, and radiation measurement, etc., which can solve the problems of low reflection efficiency, reduced image resolution, complex packaging structure, etc., and achieves low deliquescence, high reflection efficiency, and simple structure Effect

Active Publication Date: 2020-06-16
厦门中烁光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since lanthanum bromide is a hygroscopic material, it will deliquesce due to moisture absorption when exposed to the air, which will reduce the characteristics of its scintillator, which will greatly reduce the image resolution, so it is usually necessary to deliquescence crystal package
At the same time, in order to increase the luminous efficiency of the detector, usually the crystal needs to be wrapped with a reflective film, which brings problems such as complex packaging structure and low reflection efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] The composition of the electroless silver plating potion that present embodiment adopts is as follows:

[0076] Ethylene glycol: 400g / L

[0077] Silver nitrate: 0.5g / L

[0078] Diethylaminoborane: 10g / L

[0079] Sodium chloride: 10g / L

[0080] Sodium hydroxide: 150g / L

[0081] Perfluorooctanoic acid: 0.1g / L

[0082] Anhydrous silicone oil: make up 1L

[0083] The packaging method of this embodiment is: take a φ30×30 lanthanum bromide crystal, mark its two φ30 surfaces as A and B surfaces, place the lanthanum bromide crystal in anhydrous silicone oil for ultrasonic cleaning for 3 minutes, and rinse 3 times After soaking with pre-soaking solution, settling and separating, add 1L of the silver-plating potion of this example drop by drop while stirring ultrasonically and heating to 60°C for 3 hours to react. After the product is separated by sedimentation, it is washed, separated and dried. Electron microscope (SEM) was used to observe the state of coating on the sur...

Embodiment 2

[0086] The composition of the electroless silver plating potion that present embodiment adopts is as follows:

[0087] Ethylene glycol: 200g / L

[0088] Monoglyceride: 100g / L

[0089] Silver citrate: 20g / L

[0090] Diethylaminoborane: 10g / L

[0091] Sodium chloride: 10g / L

[0092] Sodium thiocyanate: 10g / L

[0093] Potassium carbonate: 80g / L

[0094] Polydimethylsiloxane: 1g / L

[0095] Anhydrous silicone oil: make up 1L

[0096] The packaging method of this embodiment is: take a piece of lanthanum chloride crystal of 30×30×40 mm, mark its two 30×30 mm surfaces as C and D surfaces, place the lanthanum chloride crystal in anhydrous silicone oil and ultrasonically clean it for 3 minutes, After rinsing for 3 times, soak in the pre-soaking solution, settle and separate, add 1L of the silver-plating solution of this example drop by drop while ultrasonically stirring and heating to 60°C for 4 hours to react. After the product is separated by sedimentation, it is washed, separa...

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Abstract

The invention provides a scintillating crystal packaging method. The method comprises the steps that electroless silver plating is conducted on the surface of a scintillating crystal to prepare a reflecting layer, and the scintillating crystal with the reflecting layer is obtained; anhydrous packaging is conducted on the scintillating crystal with the reflecting layer. The invention further provides a scintillating crystal packing structure and a scintillating crystal detector comprising the scintillating crystal packing structure. The scintillating crystal packaging method is simple and easyto implement, the scintillating crystal packing structure obtained through the scintillating crystal packaging method is simple and high in reflection efficiency, and the scintillating crystal is notprone to deliquescence.

Description

technical field [0001] The present invention relates to the technical field of scintillation crystal packaging. Specifically, the present invention relates to a scintillation crystal packaging method, a scintillation crystal packaging structure obtained by the method, and applications thereof. Background technique [0002] Scintillation crystal detector is a scintillation detector that uses the flash of ionizing radiation to detect in certain substances. It has the characteristics of high detection efficiency and short resolution, and is widely used in nuclear medicine, safety inspection, high-energy physics and cosmic rays. detection research. Scintillation crystal detectors usually use scintillation crystals that can effectively block and absorb electromagnetic radiation and produce luminescence with electromagnetic radiation as detection materials. [0003] When high-energy rays are incident into the scintillation crystal, according to the energy of the ray, the effectiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/202
CPCG01T1/2023
Inventor 魏建德佘建军方声浩叶宁张志城
Owner 厦门中烁光电科技有限公司