Charged particle accelerator and method for building charged particle accelerator
AssigneesToshiba Energy Systems & Solutions Corporation, Toshiba Plant Systems & Services Corporation
InventorsKunihiko Kinugasa, Hiromasa Itou, Yujiro Tajima, Yoshiharu Kanai
Life of this patent
Estimating the term…
Abstract
A charged particle accelerator and a method for building the same includes in a vacuum-duct joint-portion, a male screw 21 engraved on an outer peripheral surface of a joint, a contact surface 25 to be brought into contact with an annular seal 12 is formed at the end of the inner peripheral surface 22 of the joint, a pressing surface 26 for pressing the annular seal 12 toward the contact surface 25 of the joint 11A is formed on the ring, an abutting surface 28 that abuts on the ring 15 is formed on the nut, and a female screw 27 to be screwed to the male screw 21 of the joint 11A is engraved on the inner peripheral surface of the nut 16.
Claims4
A charged particle accelerator comprising:
- a duct through which charged particles pass;
- a device configured to interact with charged particles that pass through the duct, the duct is configured to extend through the device;
- a support configured to support the device with respect to a floor surface;
- a joint configured to allow the duct to be inserted there through;
- an annular seal configured to contact an outer peripheral surface of the duct;
- a ring configured to allow the duct to be inserted there through;
- and
- at least one nut configured to allow the duct to be inserted there through, wherein:
- a male screw is engraved on an outer peripheral surface of the joint;
- a contact surface to be in contact with the annular seal is formed at an end of an inner peripheral surface of the joint, the contact surface enlarges the inner peripheral surface of the joint to the extent that an outer circumference of the ring is engaged therewith, and a surface with which the annular seal is brought into close contact is formed in a tapered shape;
- a pressing surface for pressing the annular seal toward the contact surface of the joint is formed on the ring and the pressing surface is formed in a tapered shape;
- an abutting surface that abuts on the ring is formed on the nut;
- and
- a female screw to be screwed to the male screw, the female screw is engraved on an inner peripheral surface of the nut,
- wherein a first clearance formed by the duct and the joint and a second clearance formed by the duct and the nut allow the duct to tilt with respect to the joint,
- wherein the device is one of a bending electromagnet, a quadrupole electromagnet, and a screen monitor, and
- wherein end faces of each of the joint and the ring are formed in the tapered shape, so that the annular seal is brought into abutting contact to form a V-shape.
Dependencies are inferred from the claim text.