Energy modulator for modulating an energy of a particle beam
First Claim
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1. A method for modulating an energy of a particle beam, comprising:
- providing a first modulator that is located closer to a particle source than a nozzle;
providing a second modulator that is located closer to the nozzle than the particle source;
operating the first modulator when an energy of the beam is desired to be decreased; and
operating the second modulator when the energy of the beam is desired to be increased.
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Abstract
An energy modulator for use with a particle source that provides a beam of particles includes a first block moveable between a first position and a second position, wherein when the first block is at the second position, it is in a 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.
55 Citations
52 Claims
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1. A method for modulating an energy of a particle beam, comprising:
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providing a first modulator that is located closer to a particle source than a nozzle; providing a second modulator that is located closer to the nozzle than the particle source; operating the first modulator when an energy of the beam is desired to be decreased; and operating the second modulator when the energy of the beam is desired to be increased. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An energy modulator for use with a collimator and a particle source that provides a beam of particles, comprises:
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a first solid block moveable between a first position and a second position, wherein when the first solid block is at the first position, it is out of a path of the beam, and wherein when the first solid block is at the second position, it is in the path of the beam; and a second solid 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 solid block and the second solid block are located upstream from the collimator. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method for modulating an energy of a particle beam, comprising:
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determining information regarding a desired particle beam energy; providing a set of at least three solid blocks, wherein the at least three solid blocks in the set are offset from each other in a direction of the beam, and are located upstream from a collimator; selecting one or more of the solid blocks from the set to be placed in a path of the beam based on the determined information; and placing the selected one or more of the solid blocks in the path of the beam. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification