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18 条记录 (耗时 0.013 秒)

    COATED NUCLEAR REACTOR FUEL PARTICLES
    3.
    发明公开
    COATED NUCLEAR REACTOR FUEL PARTICLES 有权
    包覆的核燃料粒子

    公开(公告)号：EP2494557A1

    公开(公告)日：2012-09-05

    申请号：EP10771458.6

    申请日：2010-10-29

    申请人： Sck.Cen ,  Universiteit Gent

    发明人： VAN DEN BERGHE, Sven ,  LEENAERS, Ann ,  DETAVERNIER, Christophe

    IPC分类号： G21C3/60 ,  G21C3/62

    CPC分类号： G21C3/60 ,  G21C3/626 ,  Y02E30/38

    摘要： A method is described for producing nuclear fuel products, the method comprising receiving metallic or intermetallic uranium-based fuel particle cores, providing at least one physical vapour deposited coating layer surrounding the fuel particle core and embedding the nuclear fuel particles in a matrix so as to form a powder mixture of matrix material and coated fuel particles. The at least one physical vapour deposited coating layer may comprise inhibitors of inhibiting, stabilizing and/or reducing interaction between metallic or intermetallic uranium-based fuel particles cores and the matrix wherein the fuel particles typically may be embedded. Alternatively or in addition thereto the deposited coating layer may comprise neutron poisons. The present invention also relates to coated fuel particles, fuel elements and the use of fuel particles for generating neutrons.

    RADIONUCLIDE GENERATION
    5.
    发明公开
    RADIONUCLIDE GENERATION 审中-公开

    公开(公告)号：EP4207215A1

    公开(公告)日：2023-07-05

    申请号：EP21218490.7

    申请日：2021-12-31

    申请人： SCK.CEN ,  VITO NV

    发明人： ZHU, Hongshan ,  HEINITZ, Stephan ,  MULLENS, Steven ,  BINNEMANS, Koen ,  CARDINAELS, Thomas

    IPC分类号： G21G1/00

    摘要： A radionuclide separating system for separating a daughter radionuclide from a parent radionuclide, the radionuclide separating system comprising: an inlet for loading a liquid solution comprising the parent radionuclide onto a column (10); the column (10) comprising a sorbent material wherein the sorbent material is capable of interacting with the parent radionuclide and daughter radionuclide so as to allow selective desorption of the parent radionuclide and/or the daughter radionuclide at a different moment in time; and an outlet for selectively obtaining said daughter radionuclide based on said selective desorption of the parent radionuclide and the daughter radionuclide, wherein the sorbent material is a carbon-based sorbent material.

    Methods and compositions for the fixation of trace amounts of radiocaesium
    7.
    发明公开
    Methods and compositions for the fixation of trace amounts of radiocaesium 审中-公开
    Methoden und Zusammensetzungen zur Fixierung von RadiocaesiumSpurquantitäten

    公开(公告)号：EP1010475A1

    公开(公告)日：2000-06-21

    申请号：EP98204250.9

    申请日：1998-12-15

    申请人： SCK.CEN ,  K.U. Leuven Research & Development

    发明人： Cermers, Adrien ,  Vandenhove, Hildegarde ,  Smolders, Erik

    IPC分类号： B09C1/00 ,  B09C1/08 ,  G21F9/30 ,  C09K17/02

    CPC分类号： B09C1/08 ,  B09C1/00 ,  C09K17/02 ,  G21F9/30

    摘要： The contamination of parts of the food chain such as soils, water supplies and animal fodder with radiocaesium has long been a topic of concern. Methods of fixing radiocaesium are described which include the use of a 2-1 layer phyllosilicate which is at least partly exchanged with potassium, caesium, rubidium or ammonium. The partly exchanged 2-1 layer phyllosilicate may be contacted with soil and then the mixture subjected to a series of wetting and drying cycles. The transfer factor of radiocaesium to growing plants is significantly reduced by the application of the partly exchanged 2-1 layer phyllosilicate to soils independent of whether the soils have a low cation exchange capacity (e.g. podzolic or sandy soils) or include a higher loading of organic material.
    . Methods of soil and water supply treatment are described. The compositions and methods of the present invention may provide an unexpectedly high and industrially useful radiocaesium sorption selectivity

    摘要翻译： 食物链部分的污染物，如土壤，供水和动物饲料与放射性核素一直是一个令人关注的问题。 描述了固定放射性镁的方法，其包括使用与钾，铯，铷或铵至少部分交换的2-1层页硅酸盐。 部分交换的2-1层页硅酸盐可以与土壤接触，然后将混合物进行一系列润湿和干燥循环。 通过将部分交换的2-1层页硅酸盐施用于土壤，无论土壤是否具有低的阳离子交换能力（例如豆荚状或沙质土壤），或者包括较高的有机物含量，对植物生长的植物的转移因子显着降低 材料。 。 描述了土壤和水的供给处理方法。 本发明的组合物和方法可以提供意想不到的高和工业上有用的放射性镁吸附选择性

    An adaptive fuzzy controller and simulation method
    10.
    发明公开
    An adaptive fuzzy controller and simulation method 审中-公开
    适应器模糊和模拟方法

    公开(公告)号：EP0985988A1

    公开(公告)日：2000-03-15

    申请号：EP98870192.6

    申请日：1998-09-11

    申请人： SCK.CEN

    发明人： Ruan, Da ,  Li, Xiaozhong

    IPC分类号： G05B13/02

    CPC分类号： G05B13/0275

    摘要： An adaptive fuzzy controller for use with a controlled system and for controlling a first object of the controlled system in accordance with a system control parameter is described; whereby the fuzzy controller comprises:
    a fuzzy rule base (105) including control rules for performing a fuzzy inference operation; and an adaptive unit for adaptively changing a parameter relating to one of the control rules of the fuzzy controller in accordance with a multi-dimensional performance table having at least three dimensions, the inputs for the table being an error in the system control parameter, the rate of the change of the error in the system control parameter and a value related to a state of the controlled system or a value related to a state of an object in the controlled system.
    Also methods of operating the controller are described, in particular its use in a control system for a nuclear reactor. A simulator is described for testing the controller.

    摘要翻译： 描述了一种与受控系统一起使用并根据系统控制参数控制受控系统的第一对象的自适应模糊控制器; 由此模糊控制器包括：模糊规则库（105），包括用于执行模糊推理操作的控制规则; 以及自适应单元，用于根据具有至少三维的多维性能表，自适应地改变与模糊控制器的控制规则之一有关的参数，所述表的输入是系统控制参数中的错误， 系统控制参数中的错误的变化率和与受控系统的状态相关的值或与受控系统中的对象的状态相关的值。 还描述了操作控制器的方法，特别是其在用于核反应堆的控制系统中的使用。 描述了一个用于测试控制器的模拟器。