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公开(公告)号：JP2002197987A
公开(公告)日：2002-07-12
申请号：JP2000394778
申请日：2000-12-26
申请人： TOSHIBA CORP
发明人： ASANO SHIRO , ICHIHASHI KOJI , OKUYAMA TOSHIHISA
摘要： PROBLEM TO BE SOLVED: To provide an ion source permitting to extract of a heavy a current beam and having stable operation with high reliability. SOLUTION: The negative ion source comprises discharge containers for generating a discharge plasma, a filament arranged on the wall faces of the discharge containers, an arc discharge power supply for generating the discharge plasma in the discharge containers, a plurality of magnet lines arranged on the outer walls of the discharge container in parallel to each other and magnetized perpendicularly to the wall faces thereof with adjacent magnetic poles differentiated, extraction electrodes so provided as to block the discharge containers for extracting negative ions from the discharge plasma in the discharge containers, and means for forming a magnetic filter in an area between the discharge container and the extraction electrode for trapping electrons in the discharge plasma. The discharge containers are formed in plurality isolated from one another and the magnetic filter is formed in single which the plurality of the discharge containers share with each other, thereby permitting stable and great power discharge in the discharge containers and the extracting of a large-area heavy-current beam.
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公开(公告)号：JP2002148376A
公开(公告)日：2002-05-22
申请号：JP2000340177
申请日：2000-11-08
发明人： TOYODA MASAHIKO , SHIMIZU KATSUSUKE
摘要： PROBLEM TO BE SOLVED: To provide a vacuum container for a nuclear fusion device being excellent in resistance to neutron irradiation, while restraining activation, and being also excellent in corrosion resistance and gas emission characteristic. SOLUTION: Tiles 3 made of ferrite steel are installed on the inner surface of the vacuum container 2 made of austenitic stainless steel. The surfaces of the ferrite steel tiles 3 are coated with a plating layer 4 of Cr, Al, SiC or TiC for corrosion resistance outgassing resistance and non-adsorptivity for gas.
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公开(公告)号：JP2002113575A
公开(公告)日：2002-04-16
申请号：JP2000308694
申请日：2000-10-10
发明人： OSAKI TOSHIO , KURODA TOSHITAKA , KAWAGUCHI ICHIRO , YAMADA TAKESHI , KOGA SHINJI , HASE HIROSHI , KOIZUMI KOICHI , TADA EISUKE
IPC分类号： G21B1/13 , B23K9/00 , B23K9/02 , B23K9/10 , B23K26/38 , B23P17/00 , G21B1/00 , G21B1/05 , G21B1/11 , G21B1/25
摘要： PROBLEM TO BE SOLVED: To provide a method for cutting and rewelding metal plate by which the metal plate can be cut an rewelded remotely when the cutting and rewelding space is small and a worker is protected from being exposed in the case of repairing a structure consisting of the comparatively thick metal plate. SOLUTION: When the thick metal is cut and rewelded remotely under the atmosphere where person is hardly accessible, the metal plate are cut respectively with a water jet cutting machine or a laser beam machine in an oblique direction so that two cut surfaces are nearer to each other as they advance in the thickness direction from a side to be rewelded of the metal plates, and then both metal plates are rewelded without applying surface finish or edge preparation to the both cut surfaces.
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公开(公告)号：JP3250668B2
公开(公告)日：2002-01-28
申请号：JP51150493
申请日：1992-12-30
摘要： PCT No. PCT/FR92/01243 Sec. 371 Date Jun. 29, 1994 Sec. 102(e) Date Jun. 29, 1994 PCT Filed Dec. 30, 1992 PCT Pub. No. WO93/13636 PCT Pub. Date Jul. 8, 1993A sealed passage is formed in a part of refractory composite material by inserting a tubular metal lining in a hole in the part, brazing material being interposed between the lining and the hole, and by heating to braze the metal lining to the wall of the hole, so that the metal lining defines a sealed passage (38). The metal lining (39) is plastically deformable under the conditions of use of the part such that differential expansion of thermal origin between the refractory composite material and the metal lining can be compensated by plastic deformation of the lining. The method is particularly applicable to providing thermal protection that is cooled by the flow of a cooling fluid, and that is suitable for a deflector in an electromagnetic confinement chamber for a plasma in an installation for controlled thermonuclear fusion, said protection being constituted by a plurality of elements (30) made of refractory composite material and having sealed internal passages (38) connected to pipework (40, 42) for feeding and removing a cooling fluid.
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公开(公告)号：JP2001305278A
公开(公告)日：2001-10-31
申请号：JP2000125680
申请日：2000-04-26
发明人： MIO KEIGO
摘要： PROBLEM TO BE SOLVED: To prevent the activation of a stainless outer shell plate for covering a vessel body by thermal neutrons. SOLUTION: The outside of the vessel body 2 made of stainless structural material is covered with a shielding concrete layer 4 through a heat insulating material 3. The outside of the shielding concrete layer 4 is covered with a thermal neutron absorbing concrete layer 8 containing boron. The outside of the thermal neutron absorbing concrete layer 8 is covered with the stainless material outer shell plate 5. The thermal neutrons generated in the shielding concrete layer 4 are absorbed by boron of the thermal neutron absorbing concrete layer 8 to avoid the activation of the stainless material outer shell plate 5.
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公开(公告)号：JP2001194477A
公开(公告)日：2001-07-19
申请号：JP2000006705
申请日：2000-01-14
申请人： TOSHIBA CORP
发明人： MURAKAMI YOSHIKI , ITO YASUYUKI , SHIMUTA KOJI
摘要： PROBLEM TO BE SOLVED: To provide a diverter controller for controlling the heat load of a diverter device, so as not to excessively increase without varying the power of a fusion reactor. SOLUTION: Physical peripheral plasma parameters in the vicinity of at least a separatrix magnetic plane 5 inside the vacuum vessel of a fusion reactor is measured with a peripheral plasma parameter measuring apparatus 9. Impure gas is injected into the vacuum vessel 2 according to the measured output of the measuring apparatus 9, and the plasma density in the vicinity of the separatrix magnetic plane 5 is controlled.
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公开(公告)号：JP2001147284A
公开(公告)日：2001-05-29
申请号：JP32988099
申请日：1999-11-19
发明人： NAKAYAMA TAKESHI , ABE MITSUJI , SATO MASAYASU , MIURA YUKITOSHI
摘要： PROBLEM TO BE SOLVED: To provide a fusion device capable of reducing the amplitude of the toroidal direction distribution of a toroidal magnetic field in the whole inside of plasma. SOLUTION: A vacuum vessel 4 where plasma is produced and coils 2 and 3 arranged around the vacuum vessel for generating a magnetic field are provide. For the fusion device in which a ferromagnetic body for controlling the magnetic field is placed in the plasma side of the coils for generating the magnetic field, the ferromagnetic body 8 is formed in plate shape and the thickness between edges of the plate in poloidal direction gradually increases as approaching the equator plane position.
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