Rare earth halide scintillating material

Abstract

The invention relates to a rare earth halide scintillating material of which the chemical general formula is RE<1-m>CemX<3+n>, wherein RE is one of rare earth elements such as La, Gd, Lu and Y, and the X is one or two of Cl, Br and I, 0.001 <= m <=1 and 0.0001 <= n <= 0.1. The rare earth halide scintillating material has excellent scintillating performance of high optic output, high energy resolution ratio and rapid attenuation.

Description

technical field

[0001] The invention relates to the field of inorganic scintillating materials, in particular to a rare earth halide scintillating material. Background technique

[0002] Scintillation materials can be used for the detection of high-energy rays such as α-rays, γ-rays, and X-rays, and high-energy particles such as neutrons, and are widely used in nuclear medicine, high-energy physics, safety inspection, oil well logging and other fields.

[0003] Scintillation materials are usually applied in the form of single crystals, and in some cases can also be ceramics or other forms.

[0004] Different application fields have different performance requirements for scintillation materials. However, for most application fields, it is desirable that scintillation materials have as high a light yield as possible, as short a decay time as possible, and as high an energy resolution as possible. Especially for nuclear medicine imaging devices such as positron emission tomog...

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