Cerium manganese co-doped yttrium (lutetium) aluminate ultra fast scintillation crystal and preparation method thereof

A scintillation crystal, yttrium aluminate technology, applied in crystal growth, chemical instruments and methods, single crystal growth and other directions, can solve the problems of long scintillation time, high light yield, slow component ratio and so on
CN101545140AInactive Publication Date: 2009-09-30SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Publication Date
2009-09-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a cerium manganese co-doped yttrium (lutetium) aluminate ultra fast scintillation crystal and a preparation method thereof. The chemical formula of the crystal is CexMnyY(Lu)1-xAl1-yO3 which is abbreviated as Ce,Mn: Y(Lu)AP, wherein x and y have the following numeric ranges: x is more than or equal to 0.0001 and less than or equal to 0.01; and y is more than 0.0001 and less than or equal to 0.01. The preparation method adopts a crystal pulling method for growth. The Ce,Mn: Y(Lu)AP crystal has a high crystal optical quality, integrity without cracks, ultra fast scintillation time (10 ns), and a higher photon yield.
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Description

technical field

[0001] The invention relates to a scintillation crystal, in particular to a cerium-manganese co-doped yttrium (lutetium) aluminate ultrafast scintillation crystal and a preparation method thereof. Background technique

[0002] With the development of high-energy physics and nuclear detection technology, the requirements for scintillators are increasing, especially with the rapid development of fast electronics, such as photomultiplier tubes, micro-channel plates and semiconductor detectors. The performance and counting rate of stacking becomes a new hot research issue. The most critical factor to improve these properties is to increase the decay time of scintillation materials, and to find scintillation materials with ultrafast scintillation properties. Ultrafast scintillators usually require decay times on the order of 10 nanoseconds. The most commonly used ultrafast scintillation method is barium fluoride (BaF 2 ) and lead tungstate (PbWO), the fast comp...

Claims

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