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1. 发明专利

JP2012225680A Neutron detector 有权
标题翻译：中性探测器
公开(公告)号：JP2012225680A
公开(公告)日：2012-11-15
申请号：JP2011091268
申请日：2011-04-15
申请人： Toshiba Corp , 株式会社東芝
发明人： NITTO KOICHI , ARIYOSHI MASAHIKO , SUMIDA AKIO , SATO YOSHINORI
IPC分类号： G01T3/06 , G01T1/20
摘要： PROBLEM TO BE SOLVED: To provide a neutron detector capable of detecting neutrons with high-precision and high efficiency with respect to wide energy of a neutron, especially with respect to high energy thereof.SOLUTION: A neutron detector includes: a multi-stage laminated layer structure laminated with multiple stages of laminated layer structures; and a detecting section constituted so as to guide light generated by a scintillator layer outside by transmitting the light through the scintillator layer while reflecting the light by a metal film and a second vapor deposition film. Each of the laminated layer structures includes: the metal film that extends in an incident direction of a neutron and has a function as a reflecting layer for reflecting light; a first vapor deposition film that is formed on the metal film, extends in the incident direction of the neutron, reacts with neutrons and emits radioactive rays; the second vapor deposition film that extends in the incident direction of the neutron, is arranged adjacent to the first vapor deposition film and is composed of a reflecting material for reflecting light; and the scintillator layer that extends in the incident direction of the neutron, is arranged adjacent to the second vapor deposition film and generates the light from the radioactive rays generated by the first vapor deposition film.
摘要翻译：要解决的问题：提供一种中子探测器，能够相对于中子的宽能，特别是高能量，能够以高精度和高效率检测中子。解决方案：中子检测器包括：层叠有多级层叠结构的多层叠层结构; 以及检测部分，其被构造成通过在通过闪烁体层透射光同时通过金属膜和第二气相沉积膜反射光来引导由闪烁体层外部产生的光。层叠层结构中的每一个包括：金属膜，其在中子的入射方向上延伸并且具有用作反射光的反射层的功能; 形成在金属膜上的第一气相沉积膜在中子的入射方向上延伸，与中子发生反应并发射放射线; 沿着中子的入射方向延伸的第二蒸镀膜与第一蒸镀膜相邻配置，由反射光构成的反射材料构成。并且沿着中子的入射方向延伸的闪烁体层被布置成与第二蒸镀膜相邻，并且从由第一蒸镀膜产生的放射线产生光。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JPH0267994A SHIELDING BODY FOR RADIATION MEASUREMENT 失效
公开(公告)号：JPH0267994A
公开(公告)日：1990-03-07
申请号：JP21840688
申请日：1988-09-02
申请人： TOSHIBA CORP
发明人： ARIYOSHI MASAHIKO
IPC分类号： G01T3/00 , G01T7/00 , G21C17/00
摘要： PURPOSE:To enable an absorption of a deviation with an extent of a setting error generated from a positioning relationship between primary cooling system pipings and detector guide tubes by forming a space between a neutron shielding material and a lead shielding body to absorb the setting error of the detector guide tubes. CONSTITUTION:Around a neutron flux detector 2, neutron shielding materials 5 such as polyethylene which moderate neutrons and improve a detection efficiency, are provided at an outside of a detector guide tube 4. Around a moderator 5, a lead shielding body 6 which weakens a gamma ray from a primary cooling system pipings 1 to a level lower than an allowable back ground level of the detector 2 and also prevents a back ground to be raised by photoneutrons generated from the gamma ray hitting the moderator 5, is also provided. A space 8 to absorb a setting error of the guide tube 4 is formed between the shielding body 6 and the moderator 5. The space 8 is formed, for example, by providing a penetration pit of which diameter is larger than an outer diameter of the moderator 5, on the shielding body 6. With this procedure, a deviation with an extent of a setting error generated from a positioning relationship among pipings 1, the guide tube 4 and each other guide tubes, can be absorbed, and the detector 2 can be installed.

3. 发明专利

JPH11248874A CONTROL ROD GUIDE MECHANISM 失效
公开(公告)号：JPH11248874A
公开(公告)日：1999-09-17
申请号：JP5518098
申请日：1998-03-06
申请人： TOSHIBA CORP
发明人： TAKESHIMA TOKUYUKI , ARIYOSHI MASAHIKO , OGINO MASARU
IPC分类号： G21C9/02 , G21C17/10
摘要： PROBLEM TO BE SOLVED: To provide a control rod guide mechanism where whether a cut-off control rod is inserted into a core securely or not can be verified by detecting the drop of a control rod with drop detection coils, it is possible to replace the drop detection coils and problems on the physical quantity of facilities do not occur. SOLUTION: A control rod guide mechanism 20 is equipped with a control rod guide tube 24 and a control rod 11 that is located in the tube 24 so that the rod 11 can move freely there and has a magnet 29 for detection in the upper part. A temperature sensor housing tube 27 to stow a temperature sensor 30 is placed in the control rod guide tube 24. The lower end of the temperature sensor housing tube 27 reaches the adjacently of the upper surface of fuel assemblies 25. The temperature sensor 30 for measuring the outlet temperature of fuel assemblies 25 is encased in the lower end of the temperature sensor housing tube 27, where drop detection coils 28 that output electric signals when the magnet 29 for detection of the control rods 11 approaches is provided.

4. 发明专利

JPH10148698A FAST REACTOR 失效
公开(公告)号：JPH10148698A
公开(公告)日：1998-06-02
申请号：JP30686896
申请日：1996-11-18
申请人： TOSHIBA CORP
发明人： SUZUKI TOSHIYUKI , SHIRATORI KOZO , SEKIGUCHI MINEO , ARIYOSHI MASAHIKO
IPC分类号： G21C19/19
摘要： PROBLEM TO BE SOLVED: To enable the fuel exchange without using a rotary plug and simplify the structure of reactor upper part by providing the upper lid of reactor vessel with a penetration hole for a refueling machine and a plurality of penetration holes for a control rod drive mechanism. SOLUTION: The upper lid 7 of a reactor vessel 2 is a disk shape member on the upper surface center part of which, a recess part 11 is formed, and a plurality of penetration holes 12 for control rod drive mechanism are formed on it. On each of these penetration holes, control rod drive mechanism main bodies 14 are fitted movably up and down. In the center of upper surface of the upper lid 7, a plurality of outer housing members 16 consisting of cylindrical long members are stood corresponding to the penetration holes 12. Also in the center of the upper lid 7, a penetration hole 17 for refueling machine is formed wherein a stand pipe 29 for refueling machine is inserted and fixed so as to insert the refueling machine 18 through the pipe 29. During refueling, the control rod drive mechanism main bodies 14 are lifted upward and the lifted control rod drive mechanism main bodies 14 are contained in the housing member 16.

5. 发明专利

JPH1194976A CONTROL ROD DRIVE MECHANISM 失效
公开(公告)号：JPH1194976A
公开(公告)日：1999-04-09
申请号：JP25442597
申请日：1997-09-19
申请人： TOSHIBA CORP
发明人： ARIYOSHI MASAHIKO , MATSUMOTO KOJI , KINUGASA KUNIHIKO
IPC分类号： G21C7/12
摘要： PROBLEM TO BE SOLVED: To provide a control rod drive mechanism with long stroke having a small size for the drive mechanism part in the upper core by arranging a part normally driven in the core, deleting the bellows of cover gas seal, etc. SOLUTION: This control rod drive mechanism is provided with a part 26 normally driven having an extension tube 28 holding a control rod 2 and driving up and down during reactor operation and a drive part 27 for refueling which holds the part 26 normally driven and the extension tube 28 and moving up and down during refueling. In this case, a drive motor 9 of the part 26 normally driven is arranged within the upper guide tube provided by penetrating a roof deck 6 and lower than the upper surface of the roof deck 6, a scram acceleration spring 35 is provided in the extension tube 28, and a knock type control rod grasping mechanism 33 as a control rod grasping mechanism is provided at the tip end of the control rod 2.

6. 发明专利

JPH0943380A SUPPORT SEALING DEVICE FOR CORE SUPERSTRUCTURE AND REMOVAL DEVICE FOR SODIUM ETC. 失效
公开(公告)号：JPH0943380A
公开(公告)日：1997-02-14
申请号：JP19744695
申请日：1995-08-02
申请人： TOSHIBA CORP
发明人： SHIRATORI KOZO , KASAI SHIGEO , ARIYOSHI MASAHIKO , MATSUMOTO KOJI , HASEGAWA AYA , KUBOTA KENICHI , IKAKURA HIROAKI
IPC分类号： G21C13/00 , G21F9/28
摘要： PROBLEM TO BE SOLVED: To provide a support sealing device for a reactor superstructure and a removal device for sodium etc., which secures soundness of raising/lowering action of the core superstructure and causes less exposure of workers by providing a seal or a removal device for superiorly removing sodium, etc., in a hole part, which penetrates the upper lid, or a shaft part. SOLUTION: In a through hole 13 in a support 9, etc., for supporting a core superstructure which holds a control rod drive mechanism for driving a control rod which controls nuclear reaction in a core in the upper lid 5 of a reactor container including the core and sodium 3 for coolant in a fast breeder, a sealing means for preventing increase in sodium 3 provided in a sleeve 22 which supports the support 9 is formed from high-temperature resistant metal mesh seal 23.

7. 发明专利

JPH01112195A BURST SLUG DETECTOR 失效
公开(公告)号：JPH01112195A
公开(公告)日：1989-04-28
申请号：JP26922787
申请日：1987-10-27
申请人： TOSHIBA CORP
发明人： ARIYOSHI MASAHIKO
IPC分类号： G21C17/07 , G21C17/06
摘要： PURPOSE:To execute recovery continuously and to attenuate dose until the noise in a mass spectrometer lowers down to a certain degree by treating the successively recovered tag gases with an argon gas removing device and putting the gas for one time of recovery into one unit of reservoir tanks. CONSTITUTION:The gaseous sample is put into one unit of the reservoir tanks 9a-9d every time when one unit of tag gas recovering devices 3a, 3b makes recovery once. The gaseous helium accumulated in the piping on the upper stream of the gaseous argon removing device 6 is diffused toward the reservoir tanks and is passed through the absorption bed of the gaseous argon removing device. The tag gas is transferred to the tanks 9a-9d in the argon gas removing device 6 and thereafter, the gaseous helium is supplied by closing valves 8a-8d and opening a valve 16 to execute the regenerating and cooling of the active carbon adsorption bed. The radioactivity is attenuated in the reservoir tanks and thereafter, the gaseous sample is introduced at the time of measuring the isotope compsn. with the mass spectrometer 11. The exact measurement with less noises is thus carried out.

8. 发明专利

JP2013213682A Metal hydride control rod and fast reactor using the same 审中-公开
标题翻译：金属氢化物控制棒和快速反应器
公开(公告)号：JP2013213682A
公开(公告)日：2013-10-17
申请号：JP2012082859
申请日：2012-03-30
申请人： Toshiba Corp , 株式会社東芝
发明人： KANEKO TETSUJI , KANO FUMIHISA , ARIYOSHI MASAHIKO
IPC分类号： G21C7/24 , C01B6/02 , C01F17/00 , C01G23/04 , C01G25/02 , C01G35/00 , C23C18/12 , C23C26/00 , G21C7/10
CPC分类号： Y02E30/34 , Y02E30/39
摘要： PROBLEM TO BE SOLVED: To stably prevent hydrogen of metal hydride from being reduced in metal sodium, in a metal hydride control rod.SOLUTION: A metal hydride control rod 1 comprises: metal hydride 3 loaded inside a stainless steel pipe 2; and sodium 4 provided in a gap between the stainless steel pipe 2 and the metal hydride 3, and is formed, in an inner peripheral surface of the stainless steel pipe 2, with a coating layer made of a material selected from metal hydride, except aluminum oxide, whose Gibbs free energy is positive with respect to the sodium 4.
摘要翻译：要解决的问题：为了稳定地防止在金属氢化物控制棒中金属氢化物的金属钠的还原。解决方案：金属氢化物控制棒1包括：装载在不锈钢管2内的金属氢化物3; 以及设置在不锈钢管2和金属氢化物3之间的间隙中的钠4，并且在不锈钢管2的内周面上形成有除了铝以外的选自金属氢化物的材料制成的涂层吉布斯自由能相对于钠4是阳性的。

9. 发明专利

JP2011242169A In-pile structure of fast reactor 审中-公开
标题翻译：快速反应器的内部结构
公开(公告)号：JP2011242169A
公开(公告)日：2011-12-01
申请号：JP2010112459
申请日：2010-05-14
申请人： Toshiba Corp , 株式会社東芝
发明人： HASEGAWA KATSUSHI , INATOMI TAKANARI , ARIYOSHI MASAHIKO , TSUBOI YASUSHI , SAKAI TOSHIRO
IPC分类号： G21C1/02 , G21C15/02
CPC分类号： Y02E30/34
摘要： PROBLEM TO BE SOLVED: To propose a pressurized water reactor capable of improving uniformity of distribution of coolant flow at the inlet to a reactor core to suppress a change in the flow of coolant that flows into the reactor core.SOLUTION: A fast reactor 1 includes an upper support base 16 and a lower support base 17 that are provided on a body portion 3b of a reactor vessel 3 having a closed-end cylindrical shape; a reactor core 7 that is accommodated in the reactor vessel; a reactor core barrel 8 that surrounds the reactor core 7; a neutron shield 12 that is provided at a position closer to the inner surface of the reactor vessel 3 than the reactor core barrel 8; and a reactor core support structure 15. The reactor core support structure 15 is produced by integrally forming: an annular upper support plate 35 that is fixed on the upper support base 16; a support cylinder 36 that is suspended from an inner edge portion of the upper support plate 35; and a circular lower support plate 37 that is provided at the lower edge portion of the support cylinder 36, is in contact with the lower support base 17, and supports the reactor core 7, reactor core barrel 8 and neutron shield 12.
摘要翻译：要解决的问题：提出一种能够改善反应堆芯入口处冷却剂流分布均匀性的压水反应堆，以抑制流入反应堆堆芯的冷却剂流动的变化。解决方案：快速反应器1包括设置在具有封闭端圆筒形状的反应器3的主体部分3b上的上支撑基座16和下支撑基座17; 容纳在反应堆容器中的反应堆堆芯7; 围绕反应堆堆芯7的反应堆芯筒8; 设置在比反应堆芯筒8更靠近反应容器3的内表面的位置处的中子屏蔽12; 反应堆芯支撑结构15通过一体地形成：固定在上支撑基座16上的环形上支撑板35而制成; 从上支撑板35的内缘部悬挂的支撑筒体36; 并且设置在支撑筒36的下边缘部分处的圆形下支撑板37与下支撑基座17接触，并且支撑反应堆芯7，反应堆芯筒8和中子屏蔽12。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2001264476A HEAVY METAL COOLING FURNACE 失效
公开(公告)号：JP2001264476A
公开(公告)日：2001-09-26
申请号：JP2000075056
申请日：2000-03-17
申请人： TOSHIBA CORP
发明人： SHIRATORI KOZO , YOKOYAMA TSUGIO , ARIYOSHI MASAHIKO , IIDA NORIHIKO
IPC分类号： G21C9/02 , G21C1/02 , G21C5/00 , G21C5/20 , G21C7/12 , G21C7/14 , G21C7/20 , G21C7/28 , G21C13/024 , G21C15/00
摘要： PROBLEM TO BE SOLVED: To provide sound structure of a reactor vessel by minimizing the weight of a primary coolant, reducing the amount of materials, and lightening thermal conditions. SOLUTION: The reactor vessel 24 is composed of a spherical vessel part 22 and a cylindrical part 23, and a steam generator 45 containing a reactor core 38, a heat insulating layer 37, and a coil part 62 of an electromagnetic pump, and a lead coolant 41 are accommodated on the inside. Plural control rod driving mechanisms 34 passing through a rotating plug 31 blocking the upper opening of the reactor vessel 24 are installed. A control rod 76 is composed of an absorbing body 78 and a lower guide tube 77 containing the absorbing body 78. Bouyancy is utilized in a scram action of the control rod 76 to conduct rising operation to ensure the safety of a reactor.

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