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公开(公告)号：US20250011576A1
公开(公告)日：2025-01-09
申请号：US18709948
申请日：2022-11-09
Applicant: Kyoto University , STELLA CHEMIFA CORPORATION
Inventor： Hiroki Tanaka , Yoshinori Sato , Masashi Yamamoto , Keiichi Nii , Tetsuo Nishida
Abstract: Provided is a neutron shielding material having good light transparency and excellent shielding performance against thermal neutron rays, and a method for producing the same. A neutron shielding material according to the present invention includes a light transmitting material and a boron compound enriched in a boron isotope having a mass number of 10, the neutron shielding material being formed of a molded product having light transparency. Shielding performance against thermal neutron rays is improved by containing a boron compound enriched in a boron isotope having a mass number of 10. As a result, the neutron shielding material can be widely applied to members requiring visibility and neutron blocking properties.
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2.发明申请公开(公告)号：US20190209687A1
公开(公告)日：2019-07-11
申请号：US16358136
申请日：2019-03-19
Applicant: SUMITOMO HEAVY INDUSTRIES, LTD. , KYOTO UNIVERSITY
Inventor： Takashi Yamaguchi , Tetsuya Mukawa , Hiroki Tanaka
Abstract: A neutron capture therapy system includes a therapy table on which an irradiation target is placed, a neutron beam irradiation unit which irradiates the irradiation target placed on the therapy table with a neutron beam, a position measurement unit which measures a position of the irradiation target placed on the therapy table, and a radiation dose distribution output unit which outputs a radiation dose distribution of a neutron beam used for irradiating the irradiation target, based on an amount of positional misalignment of the position of the irradiation target measured by the position measurement unit.
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Patent Agency Ranking
公开(公告)号：US10155123B2
公开(公告)日：2018-12-18
申请号：US15957605
申请日：2018-04-19
Applicant: SUMITOMO HEAVY INDUSTRIES, LTD. , Kyoto University
Inventor： Tetsuya Mukawa , Kazuya Taki , Hiroki Tanaka
Abstract: A neutron capture therapy system includes a neutron beam irradiation unit that applies neutron beams, a treatment table on which an irradiation object irradiated with the neutron beams is mounted, a storage unit that stores distribution data indicating a distribution of hydrogen atoms or nitrogen atoms of a part to be irradiated of the irradiation object, a gamma ray detection unit that detects gamma rays generated from the irradiation object due to irradiation with the neutron beams, and a neutron flux distribution calculation unit that calculates a distribution of neutron flux in the irradiation object on the basis of the distribution data stored in the storage unit and gamma ray distribution data detected by the gamma ray detection unit.
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公开(公告)号：US20180236265A1
公开(公告)日：2018-08-23
申请号：US15957605
申请日：2018-04-19
Applicant: SUMITOMO HEAVY INDUSTRIES, LTD. , Kyoto University
Inventor： Tetsuya Mukawa , Kazuya Taki , Hiroki Tanaka
IPC: A61N5/10
CPC classification number: A61N5/1048 , A61N5/10 , A61N5/103 , A61N5/1077 , A61N2005/1087 , A61N2005/109 , G01T1/29
Abstract: A neutron capture therapy system includes a neutron beam irradiation unit that applies neutron beams, a treatment table on which an irradiation object irradiated with the neutron beams is mounted, a storage unit that stores distribution data indicating a distribution of hydrogen atoms or nitrogen atoms of a part to be irradiated of the irradiation object, a gamma ray detection unit that detects gamma rays generated from the irradiation object due to irradiation with the neutron beams, and a neutron flux distribution calculation unit that calculates a distribution of neutron flux in the irradiation object on the basis of the distribution data stored in the storage unit and gamma ray distribution data detected by the gamma ray detection unit.
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公开(公告)号：US10568964B2
公开(公告)日：2020-02-25
申请号：US16358136
申请日：2019-03-19
Applicant: SUMITOMO HEAVY INDUSTRIES, LTD. , KYOTO UNIVERSITY
Inventor： Takashi Yamaguchi , Tetsuya Mukawa , Hiroki Tanaka
Abstract: A neutron capture therapy system includes a therapy table on which an irradiation target is placed, a neutron beam irradiation unit which irradiates the irradiation target placed on the therapy table with a neutron beam, a position measurement unit which measures a position of the irradiation target placed on the therapy table, and a radiation dose distribution output unit which outputs a radiation dose distribution of a neutron beam used for irradiating the irradiation target, based on an amount of positional misalignment of the position of the irradiation target measured by the position measurement unit.
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公开(公告)号：US10441815B2
公开(公告)日：2019-10-15
申请号：US15925234
申请日：2018-03-19
Applicant: SUMITOMO HEAVY INDUSTRIES, LTD. , Kyoto University
Inventor： Kiyotaka Akabori , Hiroki Tanaka
Abstract: A neutron capture therapy system includes a neutron ray generating unit, an irradiated body placing unit on which a patient (irradiated body) is placed, and a gamma ray detecting unit that detects gamma rays emitted from the patient (irradiated body). The gamma ray detecting unit includes an emission part that emits light or electrons as the gamma rays are incident thereon, an amplification part that amplifies and outputs the light or the electrons emitted from the emission part, a first neutron ray shielding part formed of a substance containing 6-lithium, and a second neutron ray shielding part formed of a light element. The first neutron ray shielding part is provided so as to cover at least a surface opposite to an adjacent surface adjacent to the amplification part, among surfaces of the emission part.
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公开(公告)号：US20180280726A1
公开(公告)日：2018-10-04
申请号：US15925234
申请日：2018-03-19
Applicant: SUMITOMO HEAVY INDUSTRIES, LTD. , Kyoto University
Inventor： Kiyotaka Akabori , Hiroki Tanaka
CPC classification number: A61N5/1048 , A61N2005/109 , A61N2005/1094 , A61N2005/1098 , G01T1/003 , G01T1/161 , G01T1/20 , G01T1/24 , G01T1/29 , G01T3/06 , G01T3/08
Abstract: A neutron capture therapy system includes a neutron ray generating unit, an irradiated body placing unit on which a patient (irradiated body) is placed, and a gamma ray detecting unit that detects gamma rays emitted from the patient (irradiated body). The gamma ray detecting unit includes an emission part that emits light or electrons as the gamma rays are incident thereon, an amplification part that amplifies and outputs the light or the electrons emitted from the emission part, a first neutron ray shielding part formed of a substance containing 6-lithium, and a second neutron ray shielding part formed of a light element. The first neutron ray shielding part is provided so as to cover at least a surface opposite to an adjacent surface adjacent to the amplification part, among surfaces of the emission part.
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