# US 12,181,616 B2 · Radiation detector module, radiation detector, and X-ray CT apparatus

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,181,616 B2
- Document ID: US12181616B2
- Status: Granted
- Kind: B2
- Application number: 17/717,563
- Filed: 2022-04-11
- Published: 2022-10-20
- Granted: 2024-12-31
- Earliest claimed: 2021-04-14
- Assignees: Canon Medical Systems Corporation
- Applicants: Canon Medical Systems Corporation
- Inventors: Akira Nishijima
- Web page: https://patentgrep.com/patent/US12181616B2

## CPC

- G01T 1/16: Measuring radiation intensity (G01T1/29 takes precedence {; self-powered detectors G01T3/006; using an ionisation chamber filled with a liquid or solid, e.g. frozen liquid, dielectric G01T3/008})
- G01T 1/243: {Modular detectors, e.g. arrays formed from self contained units (constructional or manufacturing details H10W90/00)}
- A61B 6/032: {Transmission computed tomography [CT]}
- A61B 6/4233: {using matrix detectors}
- 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)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A radiation detector module of an embodiment includes a radiation detector, a first electrode, a second electrode, and a mark. The radiation detector includes an incident surface and is configured to detect radiation incident from the incident surface. The first electrode is provided on the side of the incident surface of the radiation detector. The second electrode is provided to face the first electrode through the radiation detector. The mark is provided on at least one of the incident surface of the radiation detector and the first electrode.

## Claims

### Claim 1

A radiation detector module, comprising:
a radiation detection element that includes an incident surface and is configured to detect radiation incident from the incident surface;
a first electrode provided on a side of the incident surface of the radiation detection element;
a second electrode provided to face the first electrode through the radiation detection element; and
a mark provided on the incident surface of the radiation detection element,
wherein a through hole is provided on the first electrode, the through hole being placed at a position where the mark, which is provided on the incident surface of the radiation detection element under the first electrode, is visually recognizable via the through hole when viewed from the side of the incident surface.

### Claim 2 (depends on 1)

The radiation detector module according to claim 1, wherein the mark is provided based on a position of the second electrode.

### Claim 3 (depends on 1)

The radiation detector module according to claim 1, wherein the through hole is provided only at a position where the mark is visually recognizable from the side of the incident surface.

### Claim 4 (depends on 1)

The radiation detector module according to claim 1, wherein the through hole is provided at a plurality of positions including a position where the mark is visually recognizable from the side of the incident surface.

### Claim 5 (depends on 1)

The radiation detector module according to claim 1, comprising a plurality of marks.

### Claim 6 (depends on 1)

The radiation detector module according to claim 1, wherein the mark includes a same material as the first electrode.

### Claim 7 (depends on 1)

The radiation detector module according to claim 1, wherein the first electrode is provided by depositing a material on the radiation detection element, and the mark is provided by being masked when the first electrode is formed.

### Claim 8 (depends on 1)

The radiation detector module according to claim 1, wherein the radiation detector module is provided in a radiation detector including a plurality of radiation detector modules, and
the mark is for positioning the second electrode and another second electrode in another adjacent radiation detector module.

### Claim 9 (depends on 1)

The radiation detector module according to claim 1, further comprising an electrode film provided on the side of the incident surface of the first electrode and supplying a voltage to the first electrode,
wherein the through hole, which is configured to allow the mark to be visually recognizable from the side of the incident surface is provided in the electrode film.

### Claim 10 (depends on 1)

A radiation detector comprising the radiation detector module according to claim 1.

### Claim 11 (depends on 10)

An X-ray CT apparatus comprising the radiation detector according to claim 10, wherein the radiation is X-rays.