Abstract: To enable avoiding interference between a path of a separated charged particle beam and an electromagnet as well as providing a sufficient separation distance between: a path of a separated charged particle beam; and a path of a charged particle beam traveling in a main region. A quadrupole electromagnet includes: an iron core provided with a beam passing gap for travel of an output beam that is a separated charged particle beam, in addition to a main region for travel of a circulating beam that is a charged particle beam; excitation coils, and each wound around the iron core; a main vacuum duct, provided in a main region of the iron core, inside which the circulating beam travels; and a sub-vacuum duct, provided in the beam passing gap of the iron core, inside which the output beam travels.

Abstract: A charged particle transport system and its installation method, both of which can readily and quickly adjust alignment, are provided. The charged particle transport system 10a includes: a frame 16 fixed to a base 15; a first plate 21 joined to an upper portion of the frame 16 with a height-adjustable first screw 11; a second plate 22 movably accommodated in a horizontal surface of the first plate; a second screw 12 screwed into a screw hole formed in a fixing member 25 around the first plate 21 such that its tip abuts on an outer peripheral surface of the second plate 22; a third screw 13 that fixes the second plate 21 to the first plate 21; and first engagement pins 31 inserted into respective engagement holes 17a, 17b formed in the second plate 22 and a supporting member 27 for engaging both.

Abstract: A charged particle accelerator for which assembly work can be simplified is provided, and a method for building the same is provided. In a vacuum-duct joint-portion 10: a male screw 21 is engraved on an outer peripheral surface of a joint 11; 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 11; a pressing surface 26 for pressing the annular seal 12 toward the contact surface 25 of the joint 11A is formed on the ring 15; an abutting surface 28 that abuts on the ring 15 is formed on the nut 16; 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.

Abstract: A charged particle transport system and its installation method, both of which can readily and quickly adjust alignment, are provided. The charged particle transport system 10a includes: a frame 16 fixed to a base 15; a first plate 21 joined to an upper portion of the frame 16 with a height-adjustable first screw 11; a second plate 22 movably accommodated in a horizontal surface of the first plate; a second screw 12 screwed into a screw hole formed in a fixing member 25 around the first plate 21 such that its tip abuts on an outer peripheral surface of the second plate 22; a third screw 13 that fixes the second plate 21 to the first plate 21; and first engagement pins 31 inserted into respective engagement holes 17a, 17b formed in the second plate 22 and a supporting member 27 for engaging both.

Abstract: According to one embodiment, there is provided a method of manufacturing a high-frequency acceleration cavity component, the method including covering a mold with a conducting material, enclosing, in an outer shell, the mold covered with the conducting material, vacuum-airtight-welding the outer shell enclosing the mold, conducing hot isostatic pressing of the vacuum-airtight-welded outer shell, and taking the conducting material formed in the mold out of the outer shell which has undergone the hot isostatic pressing.

Abstract: According to one embodiment, there is provided a method of manufacturing a high-frequency acceleration cavity component, the method including covering a mold with a conducting material, enclosing, in an outer shell, the mold covered with the conducting material, vacuum-airtight-welding the outer shell enclosing the mold, conducing hot isostatic pressing of the vacuum-airtight-welded outer shell, and taking the conducting material formed in the mold out of the outer shell which has undergone the hot isostatic pressing.

Abstract: The objective of the present invention is to provide a waveguide and resonator capable of suppressing the energy loss due to the skin effect. A conductive material layer is formed in the vicinity of an inside tube in the region between an outside tube and the inside tube which share the central axis and are made of a conductive material. A spacer layer (space) is formed between the surface of the inside tube and the conductive material layer. In the spacer layer, the end is thicker than the center in the layered body of the spacer layer and the conductive material layer. With the provision of such a layered body, the energy loss due to the skin effect can be suppressed. The effect becomes more prominent with a larger difference of the thickness of the spacer layer between the center and the end.