Kabushiki Kaisha Toshiba

Tokyo Shibaura Denki Kabushiki Kaisha

Yoshio Gomei

Hideki Nakagome

Hirotsugu Ohguma

Koichi Nakayama

Ichiro Takano

A synchrotron radiation apparatus includes a linear accelerator for accelerating an injected electron beam to 20 MeV or less, an energy compaction system for reducing the energy width of an electron beam, an accumulation ring for permitting the high energy electrons output from the energy compaction system to be circulated therein, an injector for injecting high energy electrons into the accumulation ring, a plurality of deflection electromagnets disposed on the respective corner portions of the accumulation ring, for deflecting the high energy electrons from the injector by a preset angle so as to cause the high energy electrons to be circulated in the accumulation ring, and a plurality of beam lines for guiding to a predetermined position, emission light emitted from the accumulation ring when the high energy electrons are circulated in the accumulation ring at a high speed. Each of the deflection electromagnets includes a core having a pair of magnetic poles arranged to face each other in a direction perpendicular to an electron track on which energy electrons are circulated with the electron track disposed therebetween. The deflection electromagnets further include a yoke for integrally coupling the pair of magnetic poles at one-side ends thereof. The core has a 'rectangular C'-shaped cross section and integrally formed in a sector shape, and the width of the yoke in a direction perpendicular to the electron track is set larger than the width of the magnetic pole in a direction perpendicular to the electron track.

Synchrotron radiation apparatus

An electron synchrotron accelerating apparatus comprises an accelerating ring, superconducting magnets for applying deflecting magnetic fields inside the accelerating ring, and an electron injector for injecting low-energy electron beams of 40 MeV or less into the accelerating ring. The low-energy electron beams of 40 MeV or less are injected a plurality of times for each predetermined period of time, by means of the electron injector. Inventors hereof find that the radiation damping time is shorter than the beam lifetime, even though the energy of the injected electron beams is relatively low. Accordingly, the electron beams can be injected a plurality of times before the lifetime of the injected beams terminates. Even though the energy of the injected electron beams is relatively low, therefore, accumulated electron current can be increased to a predetermined value. Thus, electronic synchrotron apparatus is provided which can produce a predetermined amount of synchrotron orbit radiations despite its compactness.

Electron synchrotron accelerating apparatus

Disclosed is a superconducting apparatus comprising a superconducting coil and a cooling apparatus for cooling this superconducting coil. The cooling apparatus is constituted by a cooling medium circulating path for subjecting a cooling medium to a vaporization/liquefication cycle, and a temperature equalizing plate for effecting a uniform cooling of the superconducting coil by the cooling medium. The cooling medium circulating path is constituted by a pair of flowing-down parts through which a liquid cooling medium flows downwards by gravity, and a pair of vaporization parts through which the liquid cooling medium flows upwards while it is being vaporized. The temperature-equalizing plate covers the peripheral surface making one entire round of the superconducting coil around the axis of the coil. It is divided into at least two parts at its lower end, which are electrically insulated from each other.

Superconducting apparatus

A torus type nuclear fusion apparatus including a main limiter for contacting plasma generated in a space enclosed by a first wall of a blanket and maintaining the shape of plasma stable, and a sub-limiter arranged between the first wall and the outer circumference of plasma to neutralize helium ion, a product of fusion reaction.

Growing community of inventors

Yokohama, Japan

Yoshio Gomei