A superconducting dipole magnet structure that includes coil boxes, a dewar and a support device is provided, wherein each of the coil boxes is of a one-piece structure in which a superconducting coil is provided, wherein the superconducting coils are opposite to each other so that a uniform dipole magnetic field is generated when the two superconducting coils are energized, and wherein the support device is fixed to the dewar and supports the coil box in the way of point contact.

Apparatuses and methods for accelerating electrons including an electron source configured to provide a beam of electrons and an accelerator utilize electron cyclotron resonance acceleration (eCRA). The accelerator includes a radio frequency (RF) cavity having a longitudinal axis, one or more inlets, and one or more outlets and an electro-magnet substantially surrounding at least a portion of the cavity and configured to produce an axial magnetic field. At least one pair of waveguides couple the cavity to an RF source configured to generate an RF wave. The RF wave is a superposition of two orthogonal TE.sub.111 transverse electric modes excited in quadrature to produce an azimuthally rotating standing-wave mode configured to accelerate the beam of electrons axially entering the cavity with non-linear cyclotron resonance acceleration.

A system that predicts an apparatus state of a plasma processing apparatus including a processing chamber in which a sample is processed is configured to have a data recording unit that records emission data of plasma during processing of the sample and electrical signal data obtained from the apparatus during the plasma processing, an arithmetic unit that includes a first calculation unit for calculating a first soundness index value of the plasma processing apparatus and a first threshold for an abnormality determination using a first algorithm with respect to the recorded emission data and a second calculation unit for calculating a second soundness index value of the plasma processing apparatus and a second threshold for the abnormality determination using a second algorithm with respect to the electrical signal data recorded in the data recording unit, and a determination unit that determines soundness of the plasma processing apparatus using the calculated first soundness index value and the first threshold and the calculated second soundness index value and the second threshold.

There is provided a cyclotron which accelerates a charged particle in an orbital trajectory to emit a charged particle beam. The cyclotron includes a magnetic pole that generates a magnetic field required for accelerating the charged particle, and a magnetic channel portion having a magnetic channel disposed on an outer peripheral portion of the orbital trajectory to guide the charged particle beam to an extraction trajectory and to focus the charged particle beam. The magnetic channel portion is attached to the magnetic pole.

A particle beam therapy device that irradiates a patient with a cation beam to perform treatment, the device including a passage selection unit that selectively passes through the cation beam among a mixed beam in which the cation beam and other species of a beam having a nuclide different from that of the cation beam are mixed after passing through a deflection magnetic field, after causing the mixed beam to pass through the deflection magnetic field, in a case where the other species of the beam is generated from the cation beam.

The present application provides a method for obtaining strong focusing of an isochronous accelerator by varying the magnetic field gradient in a large radial range. The method is characterized by the main magnet of the isochronous accelerator providing not only a bending effect but also a focusing effect, equivalent to the effects of quadrupole, sextupole, and octupole magnets used in a synchrotron accelerator.

A particle accelerator system including a particle accelerator that accelerates charged particles, a signal source that outputs high frequency power for accelerating the charged particles in the particle accelerator, an amplifying unit that amplifies the high frequency power from the signal source, and supplies the high frequency power to the particle accelerator, the amplifying unit including a plurality of semiconductor amplifiers using a semiconductor, and a control unit that controls an operation of the amplifying unit. The control unit controls output of at least one of the plurality of semiconductor amplifiers.

Disclosed is an adjustable transmission device for measuring transverse parameters of beams, including: a CCD transmission support assembly, an external transmission rod, the CCD transmission support assembly is connected with a support block, and the support block is provided with the slotted set screw with flat point, and is connected with a limit block via a first fastener; a snap ring is arranged in the rear of the external transmission and is matched with a base; the base is connected with the CCD fixed plate via a second fastener. The external transmission rod is provided with a second groove for mounting the first retaining ring, and a side of the first retaining ring is sequentially provided with a vacuum observation window, a second retaining ring, a head assembly, a retaining sleeve and a screwing mechanism.

A system that predicts an apparatus state of a plasma processing apparatus including a processing chamber in which a sample is processed is configured to have a data recording unit that records emission data of plasma during processing of the sample and electrical signal data obtained from the apparatus during the plasma processing, an arithmetic unit that includes a first calculation unit for calculating a first soundness index value of the plasma processing apparatus and a first threshold for an abnormality determination using a first algorithm with respect to the recorded emission data and a second calculation unit for calculating a second soundness index value of the plasma processing apparatus and a second threshold for the abnormality determination using a second algorithm with respect to the electrical signal data recorded in the data recording unit, and a determination unit that determines soundness of the plasma processing apparatus using the calculated first soundness index value and the first threshold and the calculated second soundness index value and the second threshold.

A gantry-less particle therapy system is provided. Charged particles are extracted from an ion source and accelerated in a beam transport system having an annular portion extending in a first plane and that circumscribes a volume, an arcuate portion extending in a second plane, and a transition portion that connects the annular portion and the arcuate portion. The arcuate portion terminates at a beam nozzle extending radially inward from the annular portion to deliver an ion beam to a treatment area contained in the volume circumscribed by the annular portion.