公开(公告)号：US10473597B2

公开(公告)日：2019-11-12

申请号：US16139281

申请日：2018-09-24

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA MATERIALS CO., LTD.

Inventor： Yukihiro Fukuta ,  Yoshitaka Adachi ,  Nobuaki Nakashima ,  Koichi Nittoh

IPC: G01N23/06 ,  G01T3/00 ,  G01T1/29 ,  G01T7/00 ,  G01N23/09 ,  G01N23/05

Abstract: A neutron grid, comprises: a grid including: a plurality of spacers through which at least a part of first neutrons from a target passes; and a plurality of absorbers to absorb at least a part of second neutrons scattered thorough the target, the spacers and the absorbers being alternately arranged along a first direction and extending along a second direction intersecting with the first direction; and a pair of covers through which at least a part of the first neutrons and at least a part of the second neutrons pass, sandwiching the grid along a third direction intersecting with the first and second directions. A thermal expansion coefficient difference between one of the spacers and one of the absorbers is ±9×10−6/° C. or less, or Young's modulus of the spacer is 100 GPa or more.

公开(公告)号：US20190025230A1

公开(公告)日：2019-01-24

申请号：US16139281

申请日：2018-09-24

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA MATERIALS CO., LTD.

Inventor： Yukihiro Fukuta ,  Yoshitaka Adachi ,  Nobuaki Nakashima ,  Koichi Nittoh

IPC: G01N23/05 ,  G01T1/29 ,  G01T3/00 ,  G01T7/00 ,  G01N23/09

Abstract: A neutron grid, comprises: a grid including: a plurality of spacers through which at least a part of first neutrons from a target passes; and a plurality of absorbers to absorb at least a part of second neutrons scattered thorough the target, the spacers and the absorbers being alternately arranged along a first direction and extending along a second direction intersecting with the first direction; and a pair of covers through which at least a part of the first neutrons and at least a part of the second neutrons pass, sandwiching the grid along a third direction intersecting with the first and second directions. A thermal expansion coefficient difference between one of the spacers and one of the absorbers is ±9×10−6/° C. or less, or Young's modulus of the spacer is 100 GPa or more.