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51. 发明专利

JPS6446633A EXPLOSIVE SUBSTANCE INSPECTING DEVICE 失效
公开(公告)号：JPS6446633A
公开(公告)日：1989-02-21
申请号：JP20306587
申请日：1987-08-17
申请人： MITSUBISHI ATOMIC POWER IND
发明人： YOKOBORI HITOSHI
IPC分类号： G01N23/222 , G01V5/00
摘要： PURPOSE:To improve the detection efficiency of an explosive substance by irradiating an object of inspection with fast neutrons which are generated periodically as they are and detecting a gamma ray by inelastic scattering reaction only when the fast neutrons are generated periodically. CONSTITUTION:The neutrons generated periodically by a neutron generating device 4 under the control of a control system 10 are projected on the object 3 of inspection, the 2, 3 MeV gamma ray by the inelastic scattering reaction between emitted neutrons and nitrogen in an explosive substance when the object 3 of inspection contains the explosive substance is detected by a gamma ray detection system 5 and a measuring circuit 5a, and a neutron detection system 11 and a measuring circuit 11a measure the amount of the generated neutrons. A data processing system 6 decides the object 3 of inspection from the quantity of the gamma ray measured by the measuring circuit 5a only in the neutron generation under the control of the control system 10 according to the amount of the neutrons measured by the measuring circuit 11a in synchronism with the generation period.

52. 发明专利

JPS6430519A METHOD FOR PROMOTING GROWTH OF PLANT 失效
公开(公告)号：JPS6430519A
公开(公告)日：1989-02-01
申请号：JP18798087
申请日：1987-07-28
申请人： MITSUBISHI ATOMIC POWER IND
发明人： MAEKAWA TATSUO
IPC分类号： A01G7/00
摘要： PURPOSE:To remarkably promote the growth of a plant and to increase the content of carbohydrate in the plant, by growing a plant having carbon dioxide assimilation activity in an atmosphere having an oxygen partial pressure lower than that of normal air. CONSTITUTION:For example, nitrogen gas is introduced into a vinyl house in such a manner as to decrease the oxygen partial pressure in the house to about half of that of the normal air and vegetables such as lettuce, green pepper, etc., are cultured in the vinyl house. The period necessary for the growth of lettuce, etc., can be shortened to about a half and the dry matter yield is increased by about 30% compared with conventional process.

53. 发明专利

JPS6425093A MANUFACTURING METHOD OF OXIDE NUCLEAR FUEL BODY 失效
公开(公告)号：JPS6425093A
公开(公告)日：1989-01-27
申请号：JP17998687
申请日：1987-07-21
申请人： MITSUBISHI ATOMIC POWER IND
发明人： HARADA YUHEI , ASAMI KOJI
IPC分类号： G21C3/62
摘要： PURPOSE:To obtain nuclear fuel body whose fission product gas is less by preliminarily sintering oxide nuclear fuel pellets in the prescribed treating temperature and the H2 gas surrounding, further sintering it in the CO2 environment and reducing and heat-treating it in the H2 gas environment. CONSTITUTION:UO2+x powder of raw material is roughly shaped and granulated granulation powder in which lubricant such as stearic acid zinc is added is compressed into green pellets and the green pellets are charged into a pellet charging chamber 1 from the direction of an arrow mark 4. They are kept for an hour in the temperature of 1,400-1,600 deg.C in the H2 gas environment preliminary sintering area 5 of the chamber 1 to sinter preliminarily. Next, they are passed through a weir 7 by N2 gas curtain and sintered for about 8hr at the same temperature and in CO2 gas environment sintering area 2. Further, they are passed through the weir 7 by N2 gas curtain and heat-treated for about an hour at the same temperature and in H2 gas environment reducing area 6. They are cooled in a cooling and pellet take-out chamber 3, taken out and fed to next process.

54. 发明专利

JPS63305293A STRUCTURE OF HEAT INSULATING SECTION FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS63305293A
公开(公告)日：1988-12-13
申请号：JP14088287
申请日：1987-06-05
申请人： MITSUBISHI ATOMIC POWER IND
发明人： KUDO FUMIO
IPC分类号： G21C11/08
摘要： PURPOSE:To achieve a higher machinability and workability without lowering thermal and strength performances, by using a heat insulating body comprising a sintered material of austenitic stainless steel with a void of 37-43%. CONSTITUTION:A heat insulating body comprising a sintered material of austenitic stainless steel with a void of 37-43% is arranged to cover the surface of nuclear reactor constructions dividing parts for housing liquid materials for the nuclear reactor such as external heat insulating body 1g of a core support construction 5, internal heat insulating body 1a of a rector container lid 21, lower heat insulating body 1b of a bottom surface 22 of a pressure chamber 14, internal heat insulating chamber 1c of a floor 23 of a pump chamber of a primary circulation pump 7,heat insulating bodies 1d and 1e on an external surface of a steam generator chamber wall 24, external heat insulating bodies 1h and 1i of a lower core camber wall 25. This achieves a higher workability without raising any problem in thermal and mechanical nature.

58. 发明专利

JPS63132198A CRITICAL CONTROL METHOD AT TIME OF EXCHANGE OF FUEL OF NUCLEAR REACTOR 失效
公开(公告)号：JPS63132198A
公开(公告)日：1988-06-04
申请号：JP27834586
申请日：1986-11-21
申请人： MITSUBISHI ATOMIC POWER IND
发明人： OKAYAMA TADAYOSHI , NATSUME TOSHIHIRO
IPC分类号： G21C19/40 , G21C17/00 , G21C17/06 , G21C19/19

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