# US 10,871,581 B2 · Scintillator module, scintillator sensor unit, and scintillator module production method

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- Number: US 10,871,581 B2
- Document ID: US10871581B2
- Status: Granted
- Kind: B2
- Application number: 16/478,033
- Filed: 2017-02-17
- Published: 2019-12-05
- Granted: 2020-12-22
- Earliest claimed: 2017-02-17
- Assignees: Yasu Medical Imaging Technology Co., Ltd.
- Applicants: Yasu Medical Imaging Technology Co., Ltd.
- Inventors: Fumiaki Kunimoto
- Web page: https://patentgrep.com/patent/US10871581B2

## CPC

- G01T 1/2006: {using a combination of a scintillator and photodetector which measures the means radiation intensity}
- G01T 1/202: the detector being a crystal
- G21K 4/00: Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens (photographic processes using X-ray intensifiers G03C5/17; discharge tubes comprising luminescent screens H01J1/62; cathode ray tubes for X-ray conversion with optical output H01J31/50)
- H10F 39/024: {of coatings or optical elements}
- H10F 39/1898: {Indirect radiation image sensors, e.g. using luminescent members}
- G01T: MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00)
- G21K: HANDLING OF PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION

## Abstract

According to an embodiment, a scintillator module includes a moisture-proof welding layer and a resin case. The moisture-proof welding layer is formed of a material having a welding property and a moisture-proof property, and extends to a side surface of a fiber optic plate to cover, in a sealed state, a scintillator layer and a visible-light reflective layer laminated on the fiber optic plate. The resin case covers the moisture-proof welding layer while being pressed against the side surface of the fiber optic plate.

## Claims

### Claim 1

A scintillator module comprising:
a moisture-proof welding layer that:
is formed of a material having a welding property and a moisture-proof property, and extends to a side surface of a fiber optic plate to cover, in a sealed state, a scintillator layer and a visible-light reflective layer laminated on the fiber optic plate; and
a resin case that covers the moisture-proof welding layer while being pressed against the side surface of the fiber optic plate.

### Claim 2 (depends on 1)

The scintillator module according to claim 1, wherein the resin case includes:
a face that opposes the moisture-proof welding layer through the visible-light reflective layer, and
a peripheral wall of a shape conforming to a periphery of the fiber optic plate.

### Claim 3 (depends on 2)

The scintillator module according to claim 2, wherein the resin case opposes and is fitted to the fiber optic plate through the peripheral wall and the moisture-proof welding layer.

### Claim 4 (depends on 1)

The scintillator module according to claim 1, wherein the resin case is formed of a thermoplastic resin with a certain shrinkage ratio or more, so that the resin case, when shrunk, becomes pressed against the moisture-proof welding layer.

### Claim 5 (depends on 4)

The scintillator module according to claim 4, wherein the resin case is formed of a crystalline resin with a shrinkage ratio of 10/1,000% or more.

### Claim 6 (depends on 1)

The scintillator module according to claim 1, wherein the moisture-proof is formed of a butyl-rubber welding material.

### Claim 7 (depends on 1)

A scintillator sensor unit comprising:
the scintillator module according to claim 1; and
a photodiode array unit that is placed in opposition to the fiber optic plate.

### Claim 8

A method for manufacturing a scintillator module comprising:
forming a material having a welding property and a moisture-proof property into a moisture-proof welding layer that extends to a side surface of a fiber optic plate to cover, in a sealed state, a scintillator layer and a visible-light reflective layer laminated on the fiber optic plate; and
covering by a resin case, the moisture-proof welding layer while being pressed against the side surface of the fiber optic plate.