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11. 发明专利

JPH10288670A NON-CONTACT SURFACE CONTAMINATION INSPECTION METHOD AND SURFACE TREATMENT METHOD AND DEVICE 失效
公开(公告)号：JPH10288670A
公开(公告)日：1998-10-27
申请号：JP9779497
申请日：1997-04-15
申请人： TOSHIBA CORP
发明人： NITSUTOU KOUICHI , FUKAZAWA TAKUJI , TAMURA TOSHIYUKI , YAMAGUCHI YASUSHI , MATSUI MASAO
IPC分类号： G01N1/02 , B05D3/00 , B08B5/04 , G01N1/28 , G01T1/169 , G21F9/28
摘要： PROBLEM TO BE SOLVED: To inspect the surface contamination of an object to be inspected without damaging a protection film such as a base material and a paint film and without expanding a contamination site. SOLUTION: A non-contact surface contamination inspection device 10 or a surface-treating device supports a head unit 15 so that it can travel relatively and freely for an inspection target 11. The head unit 15 is connected to a unit box via a flexible connection means. On the other hand, the head unit 15 has a laser beam irradiation means 19 for applying laser beams for inspecting surface to the object surface of the inspection target 11, a filter-capturing means 35 for detecting a bloom that left the object surface, and a bloom detection means 31 for detecting the captured bloom. In this case, a signal that is detected by the bloom detection means 31 is processed to specify the surface contamination site of the inspection target 11 and determine a surface contamination density with a dry method without any contact.

12. 发明专利

JPH09251089A NUCLEAR FUEL ROD AND INSPECTION METHOD AND DEVICE FOR IT 失效
公开(公告)号：JPH09251089A
公开(公告)日：1997-09-22
申请号：JP5766196
申请日：1996-03-14
申请人： TOSHIBA CORP
发明人： NITSUTOU KOUICHI , SHOJI YUICHI , MATSUYAMA SHINICHIRO
IPC分类号： G21C3/16 , G21C3/17 , G21C3/28 , G21C3/62 , G21C17/06 , G21C21/04 , G21G4/02 , G21K4/00
摘要： PROBLEM TO BE SOLVED: To make it possible to easier to check the adjustment of the enrichment, and that of density distribution of granular fuel in the axial direction in the manufacture of nuclear fuel rods by a vibration-packing method. SOLUTION: The first granular mixed fuel area 3 is provided in a clad pipe 1 by a vibration-packing method, and a mixed ceramics fuel bundle 4 is loaded on the top of the first granular mixed fuel area 3. The second granular mixed fuel area 3 is provided out the top of the first mixed ceramics fuel bundle 4 by the vibration-packing method, and the second mixed ceramics fuel bundle 4 is loaded on the top of the second granular mixed fuel area 3. Thereafter, the granular mixed fuel area 3 and the mixed ceramics fuel bundle 4 are alternately ordered one by one in the same manner over and over again. The granular mixed fuel area 3 is an area where granules of nuclear and non-nuclear fuel and neutron absorbers are mixed, and the mixed ceramics fuel bundle 4 is a sintered green compact of a mixture of the nuclear and non-nuclear fuels and the neutron absorbers.

13. 发明专利

JPH0747234A LASER DEVICE FOR SEPARATING ISOTOPE 失效
公开(公告)号：JPH0747234A
公开(公告)日：1995-02-21
申请号：JP19731393
申请日：1993-08-09
申请人： LASER NOSHUKU GIJUTSU KENKYU , TOSHIBA CORP
发明人： SHIBANO TAKAYUKI , NITSUTOU KOUICHI , WATANABE JUNKO
IPC分类号： B01D59/34 , H01S3/10
摘要： PURPOSE:To provide the subject laser device dispensing with an excessive laser beam generator required heretofore and reduced in cost to a large extent. CONSTITUTION:This laser device for separating an isotope has a laser beam distribution means 3 making the optical axes of laser beams 2 emitted from a optical reaction area 1 with an atom independent at every wavelength, means 7-11 adjusting the pulse timings of laser beams 4 of respective wavelengths divided by the laser beam distribution means, a means amplifying the outputs of laser beams adjusted in pulse timing and a laser beam synthesizing means 13 synthesizing the optical axes of respective wavelengths of laser beams using an optical element, and the laser beam synthesized in wavelength is allowed to be again incident on the optical reaction area 1 with an atom.

14. 发明专利

JPH0745913A DYE LASER CELL AND DYE LASER DEVICE 失效
公开(公告)号：JPH0745913A
公开(公告)日：1995-02-14
申请号：JP19256093
申请日：1993-08-03
申请人： TOSHIBA CORP
发明人： NITSUTOU KOUICHI
IPC分类号： H01S3/213
摘要： PURPOSE:To obtain a dye laser device which can oscillate with high-repetition pulses and wherein a lateral mode of a dye laser light obtained has a uniform intensity distribution of TEM00, by using a dye laser cell of a novel shape. CONSTITUTION:A dye laser cell 1 formed by a method wherein a prism dye cell 2 is constructed in the shape of a prism out of a surface (a) of incidence of an incident excitation light L and a surface (b) of reflection forming a pair each part which has a first reflecting surface b1 and a second reflecting surface b2. A virtually-U-shaped or virtually-V-shaped groove is provided from the top side of the surface (b) of reflection of the main body 2 of the prism dye cell to the side of the surface (a) of incidence, along the longitudinal direction of the cell, and an inverting passage which inverts a flow of a dye solution within a plane vertical to the longitudinal direction of the cell is formed by this groove. An inverting part 4a of the inverting passage constructs a dye excitation area, while the main body 2 of the prism dye cell divides the incident excitation light L into excitation irradiation lights L1 to L5 by the first reflecting surfaces b1 and the second reflecting surfaces b2 and guides the divided excitation irradiation lights L1 to L5 so that they are applied to the inverting part 4a (dye excitation area) from the periphery thereof.

15. 发明专利

JPH06331765A FUEL ASSEMBLY FOR NUCLEAR REACTOR 失效
公开(公告)号：JPH06331765A
公开(公告)日：1994-12-02
申请号：JP11621493
申请日：1993-05-18
申请人： TOSHIBA CORP
发明人： HIDA KAZUTAKA , IKEHARA TADASHI , NITSUTOU KOUICHI
IPC分类号： G21C3/30 , G21C3/328 , G21C7/04
摘要： PURPOSE:To improve the combustive efficiency of fuel without deteriorating an margin for shutting down a reactor and a thermal margin. CONSTITUTION:Sixty fuel rods 2, fourteen fuel rods 10 with an inflammable toxicant mixed into uranium oxide and two water rods 3 are latticed in a bundle. This is shrouded with a channel box 4 to form a fuel assembly 1. As an inflammable toxicant, a gadolinium element with isotopes of different mass numbers and a gadolinium element whose content of at least some isotopes with even mass numbers (e.g. Gd-156) is less than the ratio existing in nature are used.

16. 发明专利

JPH05299731A 失效
公开(公告)号：JPH05299731A
公开(公告)日：1993-11-12
申请号：JP10268792
申请日：1992-04-22
申请人： TOSHIBA CORP
发明人： NAKAHARA KATSUHIKO , NITSUTOU KOUICHI , SHIBANO TAKAYUKI
IPC分类号： B01D59/34 , H01S3/06 , H01S3/094
摘要： PURPOSE:To advance an excitation operation with good efficiency from a lower- rank stage to an upper-rank stage and to enhance the excitation efficiency of atoms by a method wherein the frequency of a laser beam is swept in such a way that the tuning order of main transition lines having an ultrafine structure tuned to each excitation laser beam at each excitation stage of the atoms coincides nearly simultaneously at each excitation stage. CONSTITUTION:Atoms having an ultrafine structure are irradiated simultaneously with a pulsed laser beam at each stage of a plurality of stages of excitation levels; the atoms are excitated at many stages. In this case, the frequency of the laser beam is swept inside one pulse of the laser beam at each excitation stage; it is tuned to a plurality of ultrafine structure lines caused by the ultrafine structure of the atoms. The frequency of the laser beam is swept in such a way that the tuning order of main transition lines A, B, C of the ultrafine structure tuned to each excitation stage of the atoms coincides nearly simultaneously at each excitation stage. Thereby, since the excitation laser beam at each stage is always tuned nearly simultaneously to the main transition lines A, B, C at each stage, the excitation efficiency of the atoms is enhanced.

17. 发明专利

JPH05177188A TREATMENT DEVICE FOR LIQUID CONTAINING PCB 失效
公开(公告)号：JPH05177188A
公开(公告)日：1993-07-20
申请号：JP35991991
申请日：1991-12-26
申请人： TOSHIBA ENG & CONSTR , TOSHIBA CORP
发明人： WATANABE MASARU , MURAYOSHI YASUO , KENMOCHI SHOJI , SHOJI YUICHI , NITSUTOU KOUICHI
IPC分类号： B01J19/00 , A62D3/35 , A62D3/36 , A62D101/22 , B01J3/03 , C02F1/58
摘要： PURPOSE:To decompose efficiently and stably a large amount of PCB by using alkali liquid and reaction accelerating liquid and carrying out alkali hydrolytic reaction of liquid containing PCB under a hydrothermal condition. CONSTITUTION:The objective treatment device consists of a decomposition reaction container 1 provided with a pressurizing means 5 and a heating means 4, a raw liquid feeding means 15 for feeding a raw liquid containing PCB into the decomposition reaction container 1, a raw liquid metering device 18 installed on raw liquid feeding means 15, a chemical liquid feeding means 15 for feeding alkali liquid and a reaction accelerating liquid into the decomposition reaction container 1 and a decomposed liquid discharge means 28 for discharging decomposed liquid formed in the decomposition reaction container 1. The raw liquid containing PCB is metered by the raw liquid metering device 18, and the feeding amounts of alkali liquid reaction accelerating liquid can be set to be the optimum values by the metered value.

18. 发明专利

JPH04346283A VARIABLE WAVELENGTH DYE LASER 失效
公开(公告)号：JPH04346283A
公开(公告)日：1992-12-02
申请号：JP11878691
申请日：1991-05-23
申请人： TOSHIBA CORP
发明人： NITSUTOU KOUICHI , MOTOYOSHI KAZUHITO , NAKAHARA KATSUHIKO
IPC分类号： B01D59/34 , H01S3/16 , H01S3/213
摘要： PURPOSE:To provide a variable wavelength dye laser which makes the handling easy at the time of the deterioration of dye and maintenance. CONSTITUTION:A lateral exciting type dye laser has an oscillating and one-state amplifying dye rod 1, a two-stage amplifying dye rod 2 and a three-stage amplifying dye rod 3. The rods 1, 2, 3 are formed by solidifying dye laser medium. The solidification is performed by plastic solidifying or glass solidifying the medium. Thus, it is not necessary to handle liquid dye laser medium, and handling at the time of deterioration of dye and maintenance is facilitated. A dye laser circulating unit which was heretofore indispensable, is eliminated to simplify a laser structure and reduce in size it.

19. 发明专利

JPS6276491A CONTROL ROD FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS6276491A
公开(公告)日：1987-04-08
申请号：JP21759685
申请日：1985-09-30
申请人： NIPPON ATOMIC IND GROUP CO , TOSHIBA CORP
发明人： UEDA KIYOSHI , NITSUTOU KOUICHI
IPC分类号： G21C7/10

20. 发明专利

JPH11183693A METHOD AND DEVICE FOR DECONTAMINATION 失效
公开(公告)号：JPH11183693A
公开(公告)日：1999-07-09
申请号：JP36713597
申请日：1997-12-25
申请人： TOSHIBA CORP , TOSHIBA ENGINEERING CO
发明人： FUKUSHIMA TADASHI , NITSUTOU KOUICHI , FUKAZAWA TAKUJI , OKAMOTO YUTAKA
IPC分类号： G21F9/28
摘要： PROBLEM TO BE SOLVED: To decontaminate surfaces of structural materials and equipment in contact with a radioactive fluid through laser irradiation while preventing radioactive adherents from scattering and suppress or reduce the readhesion of radioactivity after the decontamination. SOLUTION: A large area of a surface of an object 4 is irradiated with a laser 6 at a homogenized low energy density to remove a radioactive substance adhering to the surface by exfoliating it and suppress the readhesion of the radioactive substance through the modification of the surface of a base material. The laser irradiation can be done in water or a liquid containing chemicals such as an oxidizer and a reductant, which makes it possible both to prevent the diffusion and emission of the exfoliated radioactive substances into the air and to accelerate the modification of the surface of the base material. By using a double pulse laser or that of two or more waves, moreover, even the timing and period of each laser irradiation can be controlled through the decontamination and surface modification.

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