Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenzo Sasai0
Date of Patent
April 14, 2015
Patent Application Number
13944468
Date Filed
July 17, 2013
Patent Primary Examiner
Patent abstract
An energy degrader includes: a damping unit that attenuates energy of incident charged particles and has a thickness changing stepwise or continuously according to a position of a two-dimensional coordinate system within a plane crossing a traveling direction of charged particles; and a driving unit that performs translational driving of the damping unit in first and second axial directions that are directions of two axes crossing each other in the two-dimensional coordinate system.
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