Invention Grant
- Patent Title: Energy degrader, charged particle beam emission system provided with same, and method of producing graphite film
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Application No.: US15779656Application Date: 2016-11-30
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Publication No.: US10420959B2Publication Date: 2019-09-24
- Inventor: Mutsuaki Murakami , Atsushi Tatami , Masamitsu Tachibana
- Applicant: Kaneka Corporation
- Applicant Address: JP Osaka
- Assignee: KANEKA CORPORATION
- Current Assignee: KANEKA CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Osha Liang LLP
- Priority: JP2015-234006 20151130
- International Application: PCT/JP2016/085624 WO 20161130
- International Announcement: WO2017/094802 WO 20170608
- Main IPC: G21K5/04
- IPC: G21K5/04 ; A61N5/10
Abstract:
Provided is an energy degrader including an attenuation member that becomes radioactive only to a lesser extent than conventional attenuation members. An attenuation member (11) is a graphite film, the graphite film has a thermal conductivity, in a surface direction, of 1200 W/(m·K) or greater, and the graphite film has a thickness of 0.1 μm or greater and 50 μm or less.
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