Abstract: A charged particle acceleration device, which eliminates the need for repeating alignment adjustment even in the case of repeating installation of the controllers, is provided, and a method for adjusting the same is provided. A charged particle acceleration device 10A includes: controllers 15,15a,15b,15c configured to control a beam trajectory 12 of charged particles that pass through a duct 11 to be inserted through the controllers 15; and a stage 20 that is supported by a frame 16 fixed to a base and reversibly moves the controllers 15 in a direction of intersecting the beam trajectory 12.

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 acceleration device, which eliminates the need for repeating alignment adjustment even in the case of repeating installation of the controllers, is provided, and a method for adjusting the same is provided. A charged particle acceleration device 10A includes: controllers 15,15a,15b,15c configured to control a beam trajectory 12 of charged particles that pass through a duct 11 to be inserted through the controllers 15; and a stage 20 that is supported by a frame 16 fixed to a base and reversibly moves the controllers 15 in a direction of intersecting the beam trajectory 12.

Abstract: A numerical controller that achieves detection of a lifetime of a belt in a machine whose axis and motor are interconnected by the belt includes a axis pulse acquisition unit obtaining a pulse of a axis provided in a machining tool to be controlled, a motor pulse acquisition unit obtaining a pulse of the motor driving the axis, a axis revolution speed calculation unit calculating a revolution speed of the axis based on the obtained axis pulse, a motor revolution speed calculation unit calculating a revolution speed of the motor from the obtained motor pulse, a substantial slip distance calculation unit calculating a substantial slip distance of the belt from the axis revolution speed and the motor revolution speed, and a belt lifetime determination unit determining that the belt has reached the end of its lifetime when the substantial slip distance of the belt exceeds a predetermined threshold.

Abstract: A numerical controller that achieves detection of a lifetime of a belt in a machine whose axis and motor are interconnected by the belt includes a axis pulse acquisition unit obtaining a pulse of a axis provided in a machining tool to be controlled, a motor pulse acquisition unit obtaining a pulse of the motor driving the axis, a axis revolution speed calculation unit calculating a revolution speed of the axis based on the obtained axis pulse, a motor revolution speed calculation unit calculating a revolution speed of the motor from the obtained motor pulse, a substantial slip distance calculation unit calculating a substantial slip distance of the belt from the axis revolution speed and the motor revolution speed, and a belt lifetime determination unit determining that the belt has reached the end of its lifetime when the substantial slip distance of the belt exceeds a predetermined threshold.