Abstract: An acceleration orbit face of particle beam circular acceleration unit is placed at right angles to a rotation shaft of rotation unit for rotating the particle beam circular acceleration unit, beam transport unit, and irradiation field formation unit in one piece. Shields for shielding radiations and magnetism are placed symmetrically with respect to the center axis of the particle beam circular acceleration unit. Shields are placed symmetrically with respect to the center line of the particle beam circular acceleration means, thereby lessening the amount of beams coming in collision with surrounding walls from the beam acceleration orbit, decreasing the radiation leakage amount, lightening the shields, and providing a light particle beam irradiation apparatus.

Abstract: A droplet floating apparatus is provided to float a sample without any contact so as to carry out various types of experiments and develop new materials. The droplet floating apparatus includes a liquid sample supply pipe whose distal end is opened to a floating space, to receive supply of a liquid sample to form a droplet at the distal end, a separating device for separating the droplet from the liquid sample supply pipe, and a device for confining the separated droplet in the floating space without ambient contact. The separating device uses a gas to spray a pressurized gas on the droplet, and the confining device uses voltage. The liquid sample supply pipe is periodically vibrated, and the distal end of the liquid sample supply pipe may be diagonally cut away or may be heated. A plurality of liquid sample supply pipes may be mounted to supply a plurality of types of liquid samples. Further, the droplet may be recovered by suction of a droplet recovery pipe, an adsorber, or the like.

Abstract: A droplet floating apparatus is provided to float a sample without any contact so as to carry out various types of experiments and develop new materials. The droplet floating apparatus includes a liquid sample supply pipe whose distal end is opened to a floating space, to receive supply of a liquid sample to form a droplet at the distal end, a separating device for separating the droplet from the liquid sample supply pipe, and a device for confining the separated droplet in the floating space without ambient contact. The separating device uses a gas to spray a pressurized gas on the droplet, and the confining device uses voltage. The liquid sample supply pipe is periodically vibrated, and the distal end of the liquid sample supply pipe may be diagonally cut away or may be heated. A plurality of liquid sample supply pipes may be mounted to supply a plurality of types of liquid samples. Further, the droplet may be recovered by suction of a droplet recovery pipe, an adsorber, or the like.

Abstract: A coil structure of a pulse electromagnet designed to enable adjustment of the position at which a current supply cable is connected to current introducing terminals as well as to the adjustment of the attachment position of conductor rods for connecting return yoke members, thereby enabling the inductance of the coil to be easily changed.

Abstract: A high speed pulse electromagnet of a charged particle accumulator having a structure for producing magnetic field components of at least four poles from the periphery to the center to make the orbital path for incident charged particles passed through a low speed pulse electromagnet coincide with the orbital path for stored charged particles.

Abstract: A high voltage pulse generator circuit is connected to a pulse electromagnet and a Blumlein charge circuit comprising a pair of coaxial cables or charge lines connected in parallel and each having an impedance of Z/2 is connected in series to a transmission line having an impedance Z. A power source is connected to the charge circuit via a switching device and a charging resistor, thereby enabling a reduction in the charging voltage.