公开(公告)号：US20180292546A1

公开(公告)日：2018-10-11

申请号：US15994123

申请日：2018-05-31

Applicant: DAI NIPPON PRINTING Co., Ltd.

Inventor： Tomohisa MOTOMURA ,  Kohei OTA ,  Toru TANIMORI ,  Atsushi TAKADA ,  Taito TAKEMURA

IPC: G01T1/18 ,  H01J47/06 ,  G01T5/00

CPC classification number: G01T1/18 ,  G01T5/00 ,  H01J47/06

Abstract: A radiation detection element includes a plurality of pixel electrodes, each pixel electrodes including a first electrode placed on the first surface of an insulating member and having an opening portion and a second electrode placed at the opening portion of the first electrode. The plurality of pixel electrodes is arrayed in the row direction and the column direction. The pitch of the pixel electrodes in the row direction and the column direction is 380 μm or less. An area ratio between the first electrode and the second electrode falls within the range of 14.5:1 to 154.6:1.

公开(公告)号：US20180239036A1

公开(公告)日：2018-08-23

申请号：US15935097

申请日：2018-03-26

Applicant: DAI NIPPON PRINTING Co., Ltd.

Inventor： Kohei OTA ,  Motonori OHNO

IPC: G01T1/24

CPC classification number: G01T1/241 ,  G01T1/2018 ,  G01T1/29 ,  G01T1/2935 ,  G01T1/2985 ,  H01J47/06

Abstract: A radiation image forming apparatus includes a detection unit including a plurality of Compton cameras. Each of the plurality of Compton cameras including a radiation detection device that includes a plurality of pixels, each configured to detect an electron generated by the track of a recoil electron generated by Compton scattering, and is configured to output a detection signal configured to specify the position of a pixel that has detected the electron and a time when the pixel has detected the electron, and a detection module configured to detect the incident position of scattered γ rays generated by the Compton scattering. The plurality of the Compton cameras arranged annularly to surround a region in which a specimen is placed.

公开(公告)号：US20180246224A1

公开(公告)日：2018-08-30

申请号：US15935142

申请日：2018-03-26

Applicant: DAI NIPPON PRINTING Co., Ltd.

Inventor： Kohei OTA

IPC: G01T1/161 ,  A61B6/00 ,  A61B6/03

CPC classification number: G01T1/161 ,  A61B6/037 ,  A61B6/481 ,  A61B6/54

Abstract: A nuclear medicine examination apparatus is a nuclear medicine examination apparatus incorporating a Compton camera using gas amplification. The Compton camera has a chamber in which a gas is sealed. The nuclear medicine examination apparatus includes sensors that output signals each representing a gas state in the chamber and a controller that controls the gas state in the chamber on the basis of output signals from the sensors.

公开(公告)号：US20210208291A1

公开(公告)日：2021-07-08

申请号：US17193527

申请日：2021-03-05

Applicant: KYOTO UNIVERSITY ,  DAI NIPPON PRINTING CO., LTD.

Inventor： Atsushi TAKADA ,  Toru TANIMORI ,  Kohei OTA ,  Tomohisa MOTOMURA ,  Ryoichi OHIGASHI ,  Osamu SHIMADA

IPC: G01T1/18 ,  H01J47/06

Abstract: A detection element includes an exposed electrode on the first surface of an insulating substrate, the exposed electrode including first exposed electrode, second exposed electrode, third exposed electrode, and fourth exposed electrode provided; a first electrode pattern provided on a side opposite to the first surface, the first electrode pattern including a pattern connected to the first exposed electrode and the second exposed electrode, a pattern connected to the third exposed electrode and the fourth exposed electrode, a second electrode pattern having a first exposed portion and a pattern provided along the second direction, and a third electrode pattern having a second exposed portion and a pattern provided along the third direction, provided so as to sandwich the third electrode pattern between the first electrode pattern and the second electrode pattern.