Patent ID: 8604454
Filing Date: 2013-12-10
Classification: A61N,H05H

Abstract:
1. An energy modulator for use with a particle source that provides a beam of particles, comprising: a first block moveable between a first position and a second position, wherein when the first block is at the first position, it is out of a path of the beam, and wherein when the first block is at the second position, it is in the path of the beam; and a second block moveable relative to the first block, wherein the second block and the first block are offset from each other in a direction of the beam; wherein the first block has a first energy absorption characteristic, and the second block has a second energy absorption characteristic that is different from the first energy absorption characteristic; and wherein the first block is moveable between the first position and the second position as a single unit, and has a size sufficient to traverse an entire cross section of the beam when the first block is at the second position.