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公开(公告)号：JP2005134319A
公开(公告)日：2005-05-26
申请号：JP2003372856
申请日：2003-10-31
Inventor： KATO MASATO , UNO HIROKI , OGASAWARA MASAHIRO
IPC: G21C3/62
CPC classification number: Y02E30/38
Abstract: PROBLEM TO BE SOLVED: To realize the higher density of MOX (mixed oxide of uranium and plutonium) fuel even if it sintered at a low temperature, ensure highly uniform MOX fuel even if it contains Np and Am and makes it possible to adjust O/M with high accuracy.
SOLUTION: A method includes a low-temperature sintering process for sintering a compact of the MOX fuel at a temperature of 1,500 to 1,600°C in a reducing gas moistened in a range of the partial pressure ratio of moisture to hydrogen (P
H2O /P
H2 ) between 0.05 and saturated acqueous vapor pressure to ensure the higher density of the MOX fuel of 93%TD or higher and a heat treatment process for adjusting the O/M in the fuel by conducting heat treatment for five or more hours at the temperature (provided that it is lower than the sintering temperature) which realizes the partial pressure of oxygen in equilibrium with the O/M as an adjusted target and under the partial pressure of oxygen.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：为了实现即使在低温下烧结的MOX（铀和钚）的混合氧化物的较高密度，即使含有Np和Am也能确保高度均匀的MOX燃料，并且可以 以高精度调节O / M。 解决方案：一种方法包括一种低温烧结方法，用于在湿度与氢气的分压比范围内润湿的还原气体中烧结MOX燃料的压坯在1500至1600℃的温度（P 0.05和饱和水蒸气压之间的比例，以确保MOX燃料的密度高于93％或更高，并且用于调节O的热处理过程 / M在燃料中在温度（条件是低于烧结温度）下进行5小时以上的热处理，这实现了与作为调整对象的O / M平衡的氧分压，在部分 氧气压力 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005121583A
公开(公告)日：2005-05-12
申请号：JP2003359176
申请日：2003-10-20
Inventor： TORII TAKEO
CPC classification number: G01T1/201
Abstract: PROBLEM TO BE SOLVED: To measure the flying direction of radiation entering from far, and to miniaturize a device and reduce its weight.
SOLUTION: This device is equipped with a radiation detection system 12 having a scintillation optical fiber 10 for converting the entering radiation into a light signal, light receiving elements 14a, 14b connected to both ends thereof, for converting light signals propagating in two directions in the scintillation optical fiber into electric signals respectively, and a radiation analysis system 16 for determining the entering position of the radiation based on the arrival time difference between the electric signals from both light receiving elements. The scintillation optical fiber is installed in the arc-shaped bent state, and many plate-shaped collimators 18 are arrayed radially at approximately equal intervals on the outside of the scintillation optical fiber.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：测量从远处进入的辐射的飞行方向，并使设备小型化并减轻其重量。 解决方案：该装置配备有具有用于将进入的辐射转换为光信号的闪烁光纤10的放射线检测系统12，连接到其两端的光接收元件14a，14b，用于转换两个传播的光信号 闪烁光纤中的方向分别成为电信号，以及辐射分析系统16，用于基于来自两个光接收元件的电信号之间的到达时间差来确定辐射的进入位置。 闪烁光纤安装在弧形弯曲状态，并且许多板状准直器18在闪烁光纤的外侧以大致相等的间隔径向排列。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005106735A
公开(公告)日：2005-04-21
申请号：JP2003343331
申请日：2003-10-01
Applicant: Central Res Inst Of Electric Power Ind , Japan Nuclear Cycle Development Inst States Of Projects , Toshiba Corp , 株式会社東芝 , 核燃料サイクル開発機構 , 財団法人電力中央研究所
Inventor： KOBAYASHI TSUGUYUKI , KITAWAKI SHINICHI , SHINOZAKI TADAHIRO , KOYAMA MASASHI , HIJIKATA TAKATOSHI , UTSUNOMIYA KAZUHIRO
Abstract: PROBLEM TO BE SOLVED: To eliminate possibility of steam explosion and water leakage by excluding a cooling mechanism of a heating furnace out of a well and simplify construction, maintenance and checking works.
SOLUTION: An inert atmosphere testing device 30 is constituted of an air-tight box 20 with inert atmosphere and a heating furnace 1 connected with the air-tight box 20. The heating furnace is constituted of a well 2 with a cylinder shape with bottom which is placed by hanging downward from the bottom of the air-tight box 20, a core pipe 3 placed inside the well 2 by hanging downward from the bottom of the air-tight box 20, insulator 4 inserted in between the well 2 and the core pipe 3, a core pipe heating means 5 placed at the lower part of the core pipe, and a water cooling means 6 placed around the well. The insulator 4 inserted in between the well 2 and the core pipe 3 is eliminated from the upper part of the heating furnace 1 connected with the air-tight box 20, so that the well 2 is put closer to the core pipe 3 and cooling efficiency in the core pipe upper part is improved.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：通过从加热炉排出井的冷却机构，简化施工，维护和检查工作，消除蒸汽爆炸和漏水的可能性。 解决方案：惰性气体检测装置30由具有惰性气氛的气密箱20和与气密箱20连接的加热炉1构成。加热炉由圆筒状的孔2 其底部通过从气密箱20的底部向下悬挂而放置，通过从气密箱20的底部向下悬挂而放置在井2内的芯管3，插入井2之间的绝缘体4 芯管3，放置在芯管的下部的芯管加热装置5和设置在该井周围的水冷装置6。 插入在井2和芯管3之间的绝缘体4从与气密箱20连接的加热炉1的上部排出，使得井2靠近核心管3并且冷却效率 在芯管上部得到改善。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005089268A
公开(公告)日：2005-04-07
申请号：JP2003326667
申请日：2003-09-18
Applicant: Japan Nuclear Cycle Development Inst States Of Projects , Univ Of Fukui , 国立大学法人福井大学 , 核燃料サイクル開発機構
Inventor： IZUHARA TOSHITAKA , KOTO SEITARO , SAJI TASABUROU , SEIGETSU HISANORI , NISHI YUJI , ISHIBASHI JUNICHI , KITANO AKIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing a boron nitride ceramic sintered compact having small difference of the density between the inside part and the surface part, high density, high strength and dense structure to hardly causing crack. SOLUTION: A molding 10 of boron carbide powder is housed in a boron nitride (BN)-made case 12, the BN-made case is enclosed by an outside heat insulation wall 14 comprising an alumina fiber board and BN powder 16 is filled in a space between the BN-made case and the outside heat insulation wall to perform heat insulation. The material 20 to be heated is heated at 5-30°C/minute temperature rising rate by being irradiated with electromagnetic wave having 10-100 GHz oscillation frequency from a millimeter wave gyrotron and is sintered by keeping top temperature of 2,100-2,250°C for 0.1-3 hr. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种用于制造内部和表面部分之间的密度差较小，高密度，高强度和致密结构差的几乎不产生裂纹的氮化硼陶瓷烧结体的方法和装置 。 解决方案：将碳化硼粉末的成型体10容纳在氮化硼（BN）制造的壳体12中，BN制壳体由包含氧化铝纤维板的外部隔热壁14包围，BN粉末16为 填充在BN制壳体和外部隔热壁之间的空间中以进行隔热。 通过用毫米波回旋加速器照射具有10-100GHz振荡频率的电磁波将待加热的材料20加热至5-30℃/分钟的升温速率，并通过保持顶部温度为2,100-2,250℃进行烧结 0.1-3小时。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005069724A
公开(公告)日：2005-03-17
申请号：JP2003209338
申请日：2003-08-28
Applicant: Central Res Inst Of Electric Power Ind , Japan Nuclear Cycle Development Inst States Of Projects , Mitsubishi Materials Corp , 三菱マテリアル株式会社 , 核燃料サイクル開発機構 , 財団法人電力中央研究所
Inventor： KOBAYASHI TSUGUYUKI , KITAWAKI SHINICHI , HIJIKATA TAKATOSHI , KOYAMA MASASHI , CHIKASAWA TAKAHIRO , ONOE TAKESHI , KOTANI HISAFUMI , YANAI MINORU , KANBARA YUSUKE
Abstract: PROBLEM TO BE SOLVED: To enlarge a work space inside a glove box and miniaturize it at the same time.
SOLUTION: An installation is equipped with a crucible 22 for heating a metal to be refined, high-frequency induction heating coils 23 located around the crucible 22, a metal distiller 26 which has a condenser 25 for cooling impurities vaporized in the crucible 22 and a collector 251 for recovering the impurities solidified by the condenser 25 and the glove box 27 for placing the metal distiller 26 in an atmosphere of an inactive gas. On a bottom plate 27a of the glove box 27, a well part 27b which is vertically set up downward to accommodate at least the crucible 22 and the heating coils 23 of the metal distiller 26 is formed and a means 28 for cooling the well part 27b along a circumferential wall part 27c for demarcating the well part 27b is provided.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：扩大手套箱内的工作空间，同时小型化。 解决方案：安装装备有用于加热要精炼的金属的坩埚22，位于坩埚22周围的高频感应加热线圈23，具有用于冷却在坩埚中蒸发的杂质的冷凝器25的金属蒸馏器26 22和用于回收由冷凝器25固化的杂质的收集器251和用于将金属蒸馏器26放置在惰性气体气氛中的手套箱27。 在手套箱27的底板27a上形成有向下垂直设置以容纳至少坩埚22和金属蒸馏器26的加热线圈23的井部27b和用于冷却井部27b的装置28 沿着用于划定井部27b的周壁部27c。 版权所有（C）2005，JPO＆NCIPI
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Patent Agency Ranking86.发明专利Method for producing gel particle, and high density particle obtained thereby 审中-公开生产凝胶颗粒的方法和获得的高密度颗粒
公开(公告)号：JP2005067907A
公开(公告)日：2005-03-17
申请号：JP2003208357
申请日：2003-08-22
Applicant: Japan Nuclear Cycle Development Inst States Of Projects , Mitsubishi Materials Corp , 三菱マテリアル株式会社 , 核燃料サイクル開発機構
Inventor： TOMITA YUTAKA , OYAMA YUUDAI , TAMAKI YOSHIHISA , SASAKI RYOJI , MUTO KISHIYO
CPC classification number: Y02E30/38
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing particles having a high density and a high sphericity, and whose internal composition is uniform by a gelling method. SOLUTION: In the method for producing gel grains by dropping a raw material liquid into a reaction liquid, the dropping is performed after the filtration of the raw material liquid. Preferably, the raw material liquid is dropped to the liquid face of the reaction liquid covered with a cushion layer after the filtration of the raw material liquid, so that gel grains, e.g., having a mean particle diameter of ≤5,000 μm and a sphericity of COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 待解决的问题：提供一种生产具有高密度和高球形度的颗粒的方法，其内部组成通过胶凝方法是均匀的。 解决方案：在将原料液倒入反应液中制造凝胶颗粒的方法中，在过滤原料液后进行滴加。 优选在原料液过滤后，将原料液滴落到覆盖有缓冲层的反应液的液面上，使得例如平均粒径≤5,000μm的凝胶颗粒和球形度 <1.4，将凝胶粒烧结，得到密度为理论密度≥97％的高密度球状烧结颗粒。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005009997A
公开(公告)日：2005-01-13
申请号：JP2003173954
申请日：2003-06-18
Inventor： MORIMOTO KYOICHI , KATO MASATO , UNO HIROKI
Abstract: PROBLEM TO BE SOLVED: To perform reliable measurement of a melting point near O/M=2.00-1.98 in an MOX fuel, where Pu concentration that has high importance from the standpoint of, in particular fuel design, or the like, to 30% or lower by reducing the reaction with oxygen in the MOX fuel (uranium-plutonium mixed oxide) and improving the reliability in the measurement of the melting point, by reducing the instability of a heat curve with respect to temperature increase stagnation.
SOLUTION: A sample container for measuring the melting point using a thermal arrest method, by sealing the MOX fuel is the sample container for measuring the melting point of the MOX fuel with the entirety made of a tungsten-rhenium alloy. Typically, the MOX fuel to be measured is U-Pu mixed oxide, where Pu concentration is approximately 30% and O/M=2.00-1.95, and the tungsten-rhenium alloy that is a container-constituting material is made of tungsten 90%-rhenium 10%.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：为了在MOX燃料中进行O / M = 2.00-1.98附近的熔点的可靠测量，从特别是燃料设计等观点出发，具有高度重要性的Pu浓度， 通过减少MOX燃料（铀 - 钚混合氧化物）中的氧的反应，并通过降低热曲线相对于温度升高停滞的不稳定性来提高熔点测量的可靠性，至30％或更低。
解决方案：通过密封MOX燃料使用热阻止法测量熔点的样品容器是用于测量全部由钨 - 铼合金制成的MOX燃料的熔点的样品容器。 通常，要测量的MOX燃料是U-Pu混合氧化物，其中Pu浓度为约30％，O / M = 2.00-1.95，作为容器构成材料的钨 - 铼合金由钨90％ 铼10％。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004333448A
公开(公告)日：2004-11-25
申请号：JP2003133477
申请日：2003-05-12
Inventor： JO AKIRA , TAGAWA AKIHIRO , UEDA MASASHI , YAMASHITA TAKUYA
Abstract: PROBLEM TO BE SOLVED: To improve a flaw detection capability and a measurement capability by making a magnet structure stronger or smaller.
SOLUTION: The electromagnetic ultrasonic probe comprises one or more pairs of magnet arrangement units which periodically arrange many prism-shaped permanent magnets and apply a magnetic field to a member to be inspected, and a coil which generates or detects an eddy current in the member to be inspected. The magnet arrangement unit 30 comprises a periodic arrangement structure in which primary magnets 32a and auxiliary magnets 32b are combined with their height direction aligned, wherein the primary magnets 32a are magnetized in the height direction and are arranged so that their magnetization directions are alternatingly opposed, and the auxiliary magnets 32b are magnetized in the thickness direction and are placed between the primary magnets and at both the ends so that their magnetization directions are alternatingly reversed. The surface of the north pole side of the primary magnet which is in contact with the surface of the north pole side of the auxiliary magnet is set to be a magnet working surface.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：通过使磁体结构更强或更小来提高探伤能力和测量能力。 解决方案：电磁超声波探头包括一对或多对磁体排列单元，其周期性地布置许多棱柱形永久磁铁，并向待检查的构件施加磁场，以及产生或检测涡流的线圈 被检查的成员。 磁体排列单元30包括周期性排列结构，其中主磁体32a和辅助磁体32b与它们的高度方向对准地组合，其中主磁体32a在高度方向被磁化并且被布置为使得它们的磁化方向交替地相对， 并且辅助磁体32b在厚度方向上被磁化，并且被放置在主磁体之间并且在两端处，使得它们的磁化方向交替地反转。 与辅助磁体的北极侧的表面接触的主磁体的北极侧的表面被设定为磁体工作面。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004257994A
公开(公告)日：2004-09-16
申请号：JP2003051900
申请日：2003-02-27
Inventor： KITATANI FUMITO
Abstract: PROBLEM TO BE SOLVED: To provide a thermal lens absorption spectrophotometer which does neither require a high accuracy in alignment to facilitate alignment work and nor require experienced skills in measurement to enable a simple, quick measurement and in which a disturbance hardly causes an influence to decrease an error in the measurement as much as possible.
SOLUTION: An excitation light e is made incident on a sample 12 to form a gradient of a refractive index by heat, a probe light p is made to strike on the sample from a direction crossing the excitation light to measure the quantity of deflection of the probe light caused by the gradient of the refractive index and the absorbance of the sample is measured. The probe light is composed of two parallel beams, and a change in a detection signal caused by a disturbance is automatically corrected by obtaining the absorbance from the product of quantities of deflection of the two beams by a detection system 30. The detection system comprises e.g., a symmetrically-shaped reflector 32 reflecting the two beams in opposite directions to each other, linear position sensors 34 and 36 receiving the two beams and a multiplier 38 for obtaining the product of the detection signals from them.
COPYRIGHT: (C)2004,JPO&NCIPI-
公开(公告)号：JP2004239796A
公开(公告)日：2004-08-26
申请号：JP2003030375
申请日：2003-02-07
Inventor： HIYAMA TOSHIAKI
CPC classification number: Y02W30/883
Abstract: PROBLEM TO BE SOLVED: To enhance safety, economy and maintainability in a reprocessing process. SOLUTION: This reprocessing process unit for extracting an objective substance in a solution by mixing and separating the solution and a solvent is provided with: a solution/solvent mixer 3 for mixing the solution and the solvent fed forcibly through a filter 4; a mixing coil 1 for mixing a mixture liquid introduced from the solution/solvent mixer; and a solution/solvent separator 2 for separating the mixture liquid passed through the mixing coil. COPYRIGHT: (C)2004,JPO&NCIPI
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