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US 12,466,997 B2Granted
Scintillator material, radiation detector, and method for producing scintillator material
AssigneeKoito Manufacturing Co., Ltd.
InventorsKiminori Enomoto, Hisayoshi Daicho
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Abstract
Provided is a scintillator material that is excited by radiation rays to emit visible light. The scintillator material has a cristobalite structure obtained by crystallizing a part of silica. A fluorescent material SrI2:Eu2+ is incorporated into the cristobalite structure to form a nanocomposite, and the cristobalite structure contains an alkali metal ion.
Claims10
A scintillator material that is excited by radiation to emit visible light, the scintillator material comprising:
- a cristobalite structure obtained by crystallizing a part of silica,
- wherein a fluorescent material SrI2:Eu2+ is incorporated into the cristobalite structure to form a nanocomposite, and
- the cristobalite structure contains an alkali metal ion.
A method for producing a scintillator material, the method comprising:
- a powder preparation step of forming a raw material powder containing a fluorescent material SrI2:Eu2+ and an alkali metal material;
- a porous body formation step of forming silica that is a porous body in which voids are distributed from a surface to an inside thereof;
- and
- a heat treatment step of bringing the porous body into contact with the raw material powder and performing a heat treatment.
1 more element
Dependencies are inferred from the claim text.