Scintillator panel and radiation detector

Patent metadata

Field	Value
Publication number	US-9562980-B2
Application number	US-201514878651-A
Country	US
Kind code	B2
Filing date	Oct 8, 2015
Priority date	Oct 23, 2014
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A scintillator panel includes: a flexible substrate; a phosphor arranged on the flexible substrate; and a thermal expansion compensation layer disposed between the flexible substrate and the phosphor, wherein a linear expansion coefficient of the thermal expansion compensation layer is greater than a thermal expansion coefficient of the phosphor, and surfaces, of the thermal expansion compensation layer and of the flexible substrate, in contact with each other each contain an organic substance.

First claim

What is claimed is:

1. A scintillator panel comprising:
a flexible substrate;
a phosphor arranged on the flexible substrate; and
a thermal expansion compensation layer disposed between the flexible substrate and the phosphor,
wherein
a linear expansion coefficient of the thermal expansion compensation layer is greater than a thermal expansion coefficient of the phosphor,
surfaces, of the thermal expansion compensation layer and of the flexible substrate, in contact with each other each contain an organic substance, and

the thermal expansion compensation layer contains a filler.

2. The scintillator panel according to claim 1 , wherein
a light emitting surface and side surfaces of the phosphor, and side surfaces and a portion of a lower surface of the flexible substrate are covered with a moisture-impermeable protective layer.

3. The scintillator panel according to claim 1 , wherein
a thickness of the thermal expansion compensation layer is greater than or equal to 1 μm and less than or equal to 100 μm.

4. The scintillator panel according to claim 1 , wherein
a phosphor layer is formed from an additive, as a starting material, containing cesium iodide and thallium using a vapor deposition technique.

5. The scintillator panel according to claim 1 , wherein
the flexible substrate contains at least one of a resin selected from the group of: polyethylene terephthalate, polyethylene naphthalate, cellulose acetate, polyamide, polyimide polyether-imide, epoxy, polyamide-imide, bismaleimide, fluororesins, acrylic resins, polyurethane, aramide, nylon, polycarbonate, polyphenylene sulfide, polyether sulfone, polysulfone, polyether ether ketone, and liquid crystal polymer, or a carbon fiber reinforced resin; or the flexible substrate is a thin film glass having a surface coated with a resin layer.

6. The scintillator panel according to claim 1 , wherein
the thermal expansion compensation layer contains at least one polymer selected from the group of: polyurethane, vinyl chloride copolymers, vinyl chloride-vinyl acetate copolymers, vinyl chloride-vinylidene chloride copolymers, vinyl chloride-acrylonitrile copolymers, butadiene-acrylonitrile copolymers, polyamide resins, polyvinyl butyral, polyester, cellulose derivatives (nitrocellulose), styrene-butadiene copolymers, various synthetic rubber-based resins, phenolic resins, epoxy resins, urea resins, melamine resins, phenoxy resins, silicone resins, acrylic resins, and urea formamide resins.

7. A radiation detector comprising:
the scintillator and according to claim 1 as a line sensor.

8. The radiation detector according to claim 7 , wherein
the scintillator panel and a plurality of sensors are used in combination.

Assignees

• Konica Minolta Inc
• Konica Minolta Inc

Inventors

• Itaya Keiko
• Iijima Makoto

Classifications

• G01T1/2023 Primary

  Selection of materials · CPC title

• G01T1/202 Primary

  the detector being a crystal · CPC title

• G21K2004/08

  with a binder in the phosphor layer · CPC title

• G21K2004/12

  with a support · CPC title

• G21K2004/10

  with a protective film · CPC title