Radiation imaging device

Patent metadata

Field	Value
Publication number	US-11520061-B2
Application number	US-201917284256-A
Country	US
Kind code	B2
Filing date	Oct 9, 2019
Priority date	Oct 18, 2018
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

A radiation imaging device according to one embodiment includes a radiation detection panel having a first surface on which a detection region is formed, and a second surface on a side opposite to the first surface, a base substrate having a support surface configured to face the second surface and configured to support the radiation detection panel, and a flexible circuit substrate connected to the radiation detection panel, wherein an end portion of the base substrate corresponding to a portion to which the flexible circuit substrate is connected is located further inward than an end portion of the radiation detection panel when seen in a first direction orthogonal to the support surface, and the base substrate has a protruding portion which protrudes further outward than the radiation detection panel at a position at which the base substrate does not overlap the flexible circuit substrate when seen in the first direction.

First claim

The invention claimed is:

1. A radiation imaging device comprising:
a radiation detection panel having a first surface on which a detection region for detecting radiation is formed, and a second surface on a side opposite to the first surface;
a base substrate having a support surface configured to face the second surface of the radiation detection panel and configured to support the radiation detection panel;
one or more flexible circuit substrates connected to the radiation detection panel,
a housing which accommodates the radiation detection panel, the base substrate, and the one or more flexible circuit substrates,
wherein an end portion of the base substrate corresponding to a portion to which the one or more flexible circuit substrates are connected is located further inward than an end portion of the radiation detection panel when seen in a first direction orthogonal to the support surface, and
the base substrate has a protruding portion which protrudes further outward than the radiation detection panel at a position at which the base substrate does not overlap the one or more flexible circuit substrates when seen in the first direction,
the housing has:
a first wall portion which faces the first surface;
a second wall portion which faces the second surface; and
a third wall portion which extends in the first direction and connects the first wall portion to the second wall portion, and

an outer edge of the protruding portion is spaced apart from the third wall portion when seen in the first direction.

2. The radiation imaging device according to claim 1 , wherein the protruding portion is formed at at least two locations.

3. The radiation imaging device according to claim 1 , wherein the protruding portion is formed at at least three locations.

4. The radiation imaging device according to claim 1 , wherein the protruding portion is formed at at least four locations.

5. The radiation imaging device according to claim 1 , wherein:
the radiation detection panel is formed in a rectangular shape when seen in the first direction, and
the protruding portion is provided at a position corresponding to a corner portion of the radiation detection panel.

6. The radiation imaging device according to claim 1 , wherein:
the radiation detection panel is formed in a rectangular shape when seen in the first direction,
at least one of the one or more flexible circuit substrates is connected to at least one side portion of the radiation detection panel, and
the end portion of the base substrate corresponding to a portion of the at least one side portion to which all among the one or more flexible circuit substrates that are connected to the at least one side portion are connected is located further inward than the end portion of the radiation detection panel.

7. The radiation imaging device according to claim 1 , wherein a first extending portion which extends in the first direction is provided on the support surface of the protruding portion.

8. The radiation imaging device according to claim 7 , wherein the first extending portion is a positioning member which positions the radiation detection panel.

9. The radiation imaging device according to claim 7 ,
wherein
the base substrate is supported on the first wall portion via the first extending portion.

10. The radiation imaging device according to claim 9 , wherein:
a second extending portion which is disposed at a position at which the second extending portion faces the first extending portion with the protruding portion interposed therebetween and extends in the first direction is provided on a surface of the protruding portion on a side opposite to the support surface, and
the base substrate is supported on the second wall portion via the second extending portion.

11. The radiation imaging device according to claim 10 , wherein the first extending portion and the second extending portion are formed separately from the base substrate.

Assignees

• Hamamatsu Photonics Kk

Inventors

• Kyushima Ryuji
• Fujita Kazuki
• Sawada Junichi
• ARITAKE Takao
• Ichikawa Minoru
• OKADA Haruyoshi
• FUKAMIZU Seiji
• Namba Shuhei

Classifications

• G01T1/20188 Primary

  Auxiliary details, e.g. casings or cooling · CPC title

• A61B6/44

  Constructional features of apparatus for radiation diagnosis · CPC title

• G01T7/00

  Details of radiation-measuring instruments · CPC title

• G01T1/20181 Primary

  Stacked detectors, e.g. for measuring energy and positional information (using a combination of different types of scintillation detectors, e.g. phoswich detectors, G01T1/2008) · CPC title

• A61B6/42

  Arrangements for detecting radiation specially adapted for radiation diagnosis · CPC title