Circular accelerator, method of injection of charged particle thereof, and apparatus for injection of charged particle thereof
AssigneeHitachi, Ltd.
InventorsKazuo Hiramoto, Junichi Hirota, Kenji Miyata, Masatsugu Nishi
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Abstract
The present invention is to provide a method and an apparatus which are able to inject large electric current to a circular accelerator. In order to inject large electric current, that is, a large number of charged particles, a means is provided for injecting a beam into other region of a vacuum duct than the region which is defined as having a height equivalent to the height of the injected beam and a width from the injected point in the vacuum duct to the symmetrical point to the injected point with respect to the geometrical center of the vacuum duct.
Claims17
A circular accelerator comprising:
- at least one member constituting a center closed orbit;
- an injector which injects a beam of charged particles into the center closed orbit;
- an accelerator which accelerates the beam;
- and
- at least one shifter, operative only during injection of the beam, which shifts an orbital path of the beam injected into the center closed orbit in a horizontal direction toward a side opposite to the injection side.
A method of injection of a beam of charged particles into a circular accelerator having at least one member constituting a center closed orbit, comprising the steps of:
- injecting the beam of charged particles into the center closed orbit;
- maintaining a circulation of the beam;
- and
- shifting an orbital path of the beam injected in the center closed orbit in a horizontal direction toward a side opposite to the injection side.
Dependencies are inferred from the claim text.