CHARGED PARTICLE ACCELERATOR AND PARTICLE BEAM THERAPY SYSTEM
First Claim
1. A charged particle accelerator that accelerates a charged particle beam to be irradiated onto an irradiation subject by a particle beam irradiation apparatus, the charged particle accelerator comprising:
- a vacuum duct through which the charged particle beam passes;
an acceleration cavity that accelerates the charged particle beam passing through the vacuum duct;
a deflection electromagnet that deflects the charged particle beam passing through the vacuum duct; and
an accelerator control apparatus that controls the acceleration cavity and the deflection electromagnet, wherein the accelerator control apparatus includes a clock generation unit that generates an acceleration cavity clock and an electromagnet clock that is synchronized with the acceleration cavity clock and has a frequency lower than the frequency of the acceleration cavity clock;
a high-frequency control unit that controls the acceleration cavity, based on an acceleration cavity pattern stored in a first pattern memory and the acceleration cavity clock;
and a deflection electromagnet control unit that controls the deflection electromagnet, based on a deflection electromagnet pattern stored in a second pattern memory and the electromagnet clock.
1 Assignment
0 Petitions
Accused Products
Abstract
The objective is to obtain a charged particle accelerator where the amount of pattern data for operating an acceleration cavity and electromagnets based on time clocks is reduced and the pattern data communication time is shortened. An accelerator control apparatus provided in a charged particle accelerator of the present invention is characterized by including a clock generation unit that generates an acceleration cavity clock and an electromagnet clock that is synchronized with the acceleration cavity clock and has a frequency lower than that of the acceleration cavity clock; a high-frequency control unit that controls an acceleration cavity, based on an acceleration cavity pattern stored in a first pattern memory and the acceleration cavity clock; and a deflection electromagnet control unit that controls a deflection electromagnet, based on a deflection electromagnet pattern stored in a second pattern memory and the electromagnet clock.
-
Citations
20 Claims
-
1. A charged particle accelerator that accelerates a charged particle beam to be irradiated onto an irradiation subject by a particle beam irradiation apparatus, the charged particle accelerator comprising:
-
a vacuum duct through which the charged particle beam passes; an acceleration cavity that accelerates the charged particle beam passing through the vacuum duct; a deflection electromagnet that deflects the charged particle beam passing through the vacuum duct; and an accelerator control apparatus that controls the acceleration cavity and the deflection electromagnet, wherein the accelerator control apparatus includes a clock generation unit that generates an acceleration cavity clock and an electromagnet clock that is synchronized with the acceleration cavity clock and has a frequency lower than the frequency of the acceleration cavity clock;
a high-frequency control unit that controls the acceleration cavity, based on an acceleration cavity pattern stored in a first pattern memory and the acceleration cavity clock;and a deflection electromagnet control unit that controls the deflection electromagnet, based on a deflection electromagnet pattern stored in a second pattern memory and the electromagnet clock. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification