US 6,800,866 B2 · Accelerator system and medical accelerator facility

Abstract

To provide an accelerator system having a wide ion beam current control range, being capable of operating with low power consumption and a long maintenance interval and being capable of preventing unnecessarily large dose of the ion beam for irradiation from erroneously being supplied to the downstream side of the system. In an accelerator system designed to treat the patient with irradiation of a high-energy ion beam accelerated by a post-accelerator 4 comprising a synchrotron in irradiation rooms 6 to 8, a value of ion beam current to be supplied to the post-accelerator 4 is controlled by a pre-accelerator comprising an ion source 10, quadrupole electromagnet 15, radio frequency quadrupole accelerator 17 and a drift tube type accelerator 19. The accelerator system featuring low power consumption, a long maintenance interval and high reliability can be made available.

Claims10

Dependent claims

An accelerator system, comprising:

a pre-accelerator including an ion source comprising at least one of a radio frequency discharge-type ion source and a microwave discharge-type ion source;
a post-accelerator for accelerating an ion beam supplied from the pre-accelerator and transporting the ion beam to an irradiation portion for irradiating a target in an irradiation room with the ion beam;
and
a first control apparatus configured to control a value of current of the ion beam being supplied from the pre-accelerator to the post-accelerator by controlling said ion source.

1 more element

Dependencies are inferred from the claim text.

Accelerator system and medical accelerator facility

Life of this patent

Accelerator system and medical accelerator facility

Life of this patent

Abstract

Claims10