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US 8,569,979 B2Granted
Charged particle accelerator and charged particle acceleration method
AssigneeQuan Japan Co., Ltd.
InventorsYuji Kokubo, Masatoshi Ueno, Masumi Mukai, Masahiko Matsunaga
Life of this patent
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Abstract
A cascade of accelerating electrode tubes (LA#1 to LA#28) that apply an accelerating electric potential to a charged particle (2) are provided. With a controller (8) appropriately controlling timings to apply an accelerating voltage to the accelerating electrode tubes (LA#1 to LA#28), accelerating energy can be gained each time the charged particle (2) passes through gaps between the accelerating electrode tubes (LA#1 to LA#28).
Claims19
A charged particle accelerator comprising:
- a charged particle generation source for emitting a charged particle;
- an accelerating electrode tube through which the charged particle emitted from the charged particle generation source passes and which is for accelerating the charged particle that passes;
- a drive circuit having a DC voltage supply for applying a DC voltage to the accelerating electrode tube, and a switch for switching between connecting the accelerating electrode tube to the DC voltage supply for applying the DC voltage for accelerating the charged particle to the accelerating electrode tube and disconnecting the accelerating electrode tube from the DC voltage supply;
- and
- a control unit for controlling the switch to connect the accelerating electrode tube to the DC voltage supply so that application of the DC voltage to the accelerating electrode tube is started while the charged particle is traveling through the accelerating electrode tube.
2 more elements
A method for accelerating a charged particle, comprising:
- a step of emitting the charged particle from a charged particle generation source so as to cause the charged particle to pass through a plurality of accelerating electrode tubes in sequence;
- and
- a step of connecting a DC voltage supply to any accelerating electrode tube through which the charged particle is traveling so that application of the DC voltage to the accelerating electrode tube through which the charged particle is traveling is started while the charged particle is in the accelerating electrode tube, thus applying the voltage for accelerating the charged particle to the plurality of accelerating electrode tubes in sequence.
Dependencies are inferred from the claim text.