Abstract: A thermal conductor material having excellent heat transfer properties by obtaining high thermal conductivity even at low temperature of, for example, a liquid nitrogen temperature (77 K) or lower is to provide. A thermal conductor to be used at low temperature of 77 K or lower in the magnetic field of a magnetic flux density of 1 T or more, includes aluminum which has a purity of 99.999% by mass or more and also has the content of iron of 1 ppm by mass or less.

Abstract: A method of production of a radio frequency accelerator which has a tubular part 1 which forms an acceleration cavity, including a temporary assembly step of making a plurality of component members 11 to 14 which have shapes obtained by splitting the tubular part 1 mate with each other to temporarily assemble them into the shape of the tubular part 10 and a welding step of welding the plurality of component members 11 to 14 together. The temporary assembly step includes a step of placing, inside of the tubular part 1, support members 21 for contacting the inside surface of the tubular part 1 and supporting the tubular part 1 from the inside, and the welding step includes a step of welding the plurality of component members 11 to 14 along the butt lines 51 by friction stir welding.

Abstract: An object of the invention is to provide the orbit control device for modulating the orbital deviations of the charged particle beam and its control method, wherein in the synchrotron making use of induction cells, the charged particle beam orbit control device is comprised of the digital signal processor for controlling the generation timing of an induced voltage in response to the beam position signal from the beam position monitor for sensing the deviations of the charged particle beam on the design orbit of the synchrotron from the design orbit and to the passage signal from the bunch monitor for sensing the passage of the bunch and the pattern generator for generating a gate signal pattern for on/off-selecting the switching electric power supply a according to the master gate signal generated by the digital signal processor.

Abstract: An accelerator that can accelerate by itself all ions up to any energy level allowed by the magnetic fields for beam guiding, and provides an all-ion accelerator in which with trigger timing and a charging time of an induced voltage applied to an ion beam injected from a preinjector by induction cells for confinement and acceleration used in an induction synchrotron, digital signal processors for confinement and acceleration and pattern generators for confinement and acceleration generate gate signal patterns for confinement and acceleration on the basis of a passage signal of the ion beam and an induced voltage signal for indicating the value of the induced voltage applied to the ion beam, and intelligent control devices for confinement and acceleration perform feedback control of on/off of the induction cells for confinement and acceleration.

Abstract: The present invention provides a set of induction accelerating cell for controlling acceleration of a charged particle beam and an induction accelerating device for controlling generation timing of an induced voltage applied by the induction accelerating cell in a synchrotron. The induction accelerating device in a synchrotron includes: an induction accelerating cell that applies an induced voltage; a switching power supply that supplies a pulse voltage to the induction accelerating cell via a transmission line and drives said induction accelerating cell; a DC power supply that supplies electric power to the switching power supply; and an intelligent control device including a pattern generator that generates a gate signal pattern for controlling on/off the switching power supply, and a digital signal processing device that controls on/off a gate master signal that becomes the basis of the gate signal pattern.

Abstract: The invention provides a nondestructive inspection apparatus and nondestructive inspection method for inspecting the inside of a surface layer of a composite structure using cosmic-ray muons.

Abstract: Provided are a method of precisely molding an amorphous perfluoro resin with an accuracy of submicron or less and optic devices molded of the resin, and the method has the steps of (a) dissolving an amorphous perfluoro resin in a solvent, (b) pouring a solution of the amorphous perfluoro resin in a first mold, (c) heating a vessel with the solution placed therein, thereby volatilizing the solvent, and forming the amorphous perfluoro resin in the shape of a plate, and (d) pouring the amorphous perfluoro resin formed in the shape of a plate in a second mold, and pressurizing from one surface side to the other surface side of the second mold while heating, where the amorphous perfluoro resin is molded into a desired shape.

Abstract: [PROBLEMS] To provide an induction voltage control device (8) capable of accelerating arbitrary charged particles to an arbitrary energy level in synchronization with any magnetic excitation pattern even for an acceleration voltage (9a) of constant voltage by an induction acceleration cell (6) for acceleration and its control method. [MEANS FOR SOLVING PROBLEMS] An induction voltage control device (8) includes: a digital signal processing device (8d) for controlling a variable delay time according to a necessary variable delay time pattern obtained based on a magnetic excitation pattern, an equivalent acceleration voltage value pattern, and a passing signal (7a) of a bunch (3) from a bunch monitor (7); and a pattern generator (8b) for conversion to a gate signal pattern (8a) of a switching power source (5b). The induction voltage control device (8) controls a pulse density of the induction voltage (9) for acceleration per control unit.

Abstract: A vessel for rare-gas filling is provided that is capable of realizing a substantially completely circularly polarized light state in the vessel by using a single crystal material for a light entrance window. To this end, the thickness and the crystal axis orientation of the single crystal material are optimized. A polarization method of rare-gas nucleus using such a vessel is also provided. Embodiment of the vessel and the polarization method include those in which (1) an alkali resistance is high, (2) a pressure resistance is high, (3) no permeation of 3He occurs, and (4) a neutron absorption corresponds to applications to basic science, for example, neutron scattering is negligible. The vessel for rare-gas filling includes a vessel body and a pipe connected to the vessel body for introducing a rare-gas containing gas and an alkali metal into the vessel body.

Abstract: It is an object of the present invention to provide an accelerator that can accelerate by itself all ions up to any energy level allowed by the magnetic fields for beam guiding, and provides an all-ion accelerator in which with trigger timing and a charging time of an induced voltage applied to an ion beam injected from a preinjector by induction cells for confinement and acceleration used in an induction synchrotron, digital signal processors for confinement and acceleration and pattern generators for confinement and acceleration generate gate signal patterns for confinement and acceleration on the basis of a passage signal of the ion beam and an induced voltage signal for indicating the value of the induced voltage applied to the ion beam, and intelligent control devices for confinement and acceleration perform feedback control of on/off of the induction cells for confinement and acceleration.

Abstract: A vessel for rare-gas filling is provided, where almost complete light circular polarization is realized, which has a light incident window of a single crystal material whose thickness and crystal axis orientation are optimized, and a polarization method of rare gas nuclei in the vessel is also provided. In addition, embodiments of the vessel is provided, which is impervious to alkali metal, and sustains high pressure, and shows no permeability for 3He gas, and has negligibly small neutron absorption so as to be suitable for application to basic science, for example, neutron scattering, and the polarization method in the vessel is also provided. The vessel for rare-gas filling of the present invention comprises a vessel body 3, and a pipe 4, which is connected to the vessel body 3 and introduces a rare-gas containing gas and an alkali metal into the vessel body 3.

Abstract: A method and apparatus for constructing a 3-dimensional image of the internal organs invisible by the conventional method is provided.

Abstract: A stationary point is set on a cold end of a cryocooler. An article is mounted on the stationary point to be cooled via the stationary point. In this case, the article can be cooled up to an extremely low temperature with isolation of vibration to the article.

Abstract: A method and apparatus for constructing a 3-dimensional image of the internal organs invisible by the conventional method is provided.

Abstract: A cryogenic refrigerator includes a first refrigerant tube and a second refrigerant tube each comprising two tubes that are arranged on a cooling stage substantially parallel to each other and communicate with each other through a gas passage formed in the cooling stage. Phase differences are provided to oscillating gas pressures in the first and second refrigerant tubes, to cancel vibration of the cooling stage. Thus, the cryogenic refrigerator can be provided which can effectively reduce the vibration of the cooling stage caused by the oscillating gas pressure and can reduce the size thereof.

Abstract: A foil is formed on a given substrate, then, peeled off of the substrate and floated on the water surface charged in a tank. The surface level of the water is decreased to contact the foil to a folding plate of a jug substrate and thus, fold the foil at the folding plate in two. The two surfaces of the foil opposing each other are laminated along a foil forming-supporting plate within a laminating region. The thus laminated foil is dried and annealed except the area in the vicinity of the foil forming-supporting plate, and then, cut along the folding plate, a foil acceptor and a supporting plate, to provide a stripping foil which can be supported by itself.

Abstract: An electronic signal relating to a sonic wave when an intended gas does not exist in air is synchronized and locked in a feedback circuit constituting a phase-locked loop (PLL). Then, an electronic signal relating to another sonic wave when the intended gas exist in the air is input into the feedback circuit to release the synchronization (lock) of the feedback circuit to measure as a given electronic signal the difference in phase of the sonic wave in the air between with and without the intended gas to be detected. The intended gas can be detected as the electronic signal due to the difference in phase of the sonic wave.

Abstract: A permanent magnet for a particle accelerator and a magnetic field generator, in which Nd—Fe—B based magnets are used but are not demagnetized so easily even when exposed to a radiation, are provided. A permanent magnet for a particle accelerator is used in an environment in which the magnet is exposed to a radiation at an absorbed dose of at least 3,000 Gy. The magnet includes R (which is at least one of the rare-earth elements), B, TM (which is at least one transition element and includes Fe) and inevitably contained impurity elements. The magnet is a sintered magnet that has been magnetized to a permeance coefficient of 0.5 or more and that has a coercivity HcJ of 1.6 MA/m or more.

Abstract: A stationary point is set on a cold end of a cryocooler. An article is mounted on the stationary point to be cooled via the stationary point. In this case, the article can be cooled up to an extremely low temperature with isolation of vibration to the article.

Abstract: An electronic signal relating to a sonic wave when an intended gas does not exist in air is synchronized and locked in a feedback circuit constituting a phase-locked loop (PLL). Then, an electronic signal relating to another sonic wave when the intended gas exist in the air is input into the feedback circuit to release the synchronization (lock) of the feedback circuit to measure as a given electronic signal the difference in phase of the sonic wave in the air between with and without the intended gas to be detected. The intended gas can be detected as the electronic signal due to the difference in phase of the sonic wave.