INORGANIC RADIATION-HARD NEUTRON SHIELDING PANELS

    公开(公告)号:US20230145719A1

    公开(公告)日:2023-05-11

    申请号:US17769661

    申请日:2019-12-17

    IPC分类号: G21F1/12 G21F1/04 C04B28/04

    摘要: A self-supporting inorganic and radiation-hard neutron shielding panel for use in absorbing thermal neutrons. The panel is constructed substantially of concrete and includes a high level of boron by weight to enhance the absorption of thermal neutrons. A layer of radiation-resistant fiber reinforcement within the panel enables production of a thin, strong panel that is self-supporting and easily transportable. Mounting means are included on the panel to facilitate easy mounting on a wall or similar surface. The panels are constructed entirely of inorganic materials and include at least 58% boron by weight to maximize their effectiveness in shielding against thermal neutrons. Further disclosed are methods for forming the neutron-shielding panels.

    METHOD FOR ELECTROKINETIC DECONTAMINATION OF A POROUS SOLID MEDIUM
    3.
    发明申请
    METHOD FOR ELECTROKINETIC DECONTAMINATION OF A POROUS SOLID MEDIUM 失效
    多孔固体介质的电动除去方法

    公开(公告)号:US20110186444A1

    公开(公告)日:2011-08-04

    申请号:US13121102

    申请日:2009-10-01

    IPC分类号: C04B41/72

    摘要: The invention relates to a method for electrokinetic decontamination of a porous solid medium, which comprises: a) extracting the contaminating species present in the solid medium in an electrolyte appearing as an essentially inorganic gel, this extraction being obtained by applying an electric current between two electrodes positioned at the surface and/or in the interior of the solid medium, the contact of at least one of these electrodes with said solid medium being ensured by a layer of said gel, b) drying the gel containing the thereby extracted contaminating species until a dry residue is obtained which fractures, and c) removing the thereby obtained dry residue from said solid residue. Applications: decontamination of materials with a cement matrix, notably within the scope of dismantlement of military or industrial installations, in particular nuclear installations, or the rehabilitation of installations likely to have been contaminated by ecotoxic or radiological chemical species; clearing pollution of geological soils, sediments and sludges.

    摘要翻译: 本发明涉及一种用于多孔固体介质的电动去污的方法,其包括:a)提取出存在于作为基本无机凝胶的电解质中的固体介质中的污染物质,该提取是通过在两个 位于固体介质的表面和/或内部的电极,这些电极中的至少一个与所述固体介质的接触由所述凝胶层确保,b)干燥含有由此提取的污染物质的凝胶直到 获得破碎的干燥残渣,和c)从所得固体残余物中除去由此获得的干燥残余物。 应用:对具有水泥基质的材料进行去污染,特别是在拆除军事或工业设施,特别是核设施的范围内,或修复可能受到生态毒性或放射性化学物质污染的设施; 清理地质土壤,沉积物和污泥的污染。

    Electrically gradated carbon foam
    4.
    发明授权
    Electrically gradated carbon foam 失效
    电分级碳泡沫

    公开(公告)号:US07867608B2

    公开(公告)日:2011-01-11

    申请号:US11964036

    申请日:2007-12-25

    IPC分类号: B32B5/14 H05B6/00

    摘要: Electrically gradated carbon foam materials that have changing or differing electrical properties through the thickness of the carbon foam material and methods for making these electrically gradated carbon foam materials are described herein. In some embodiments, the electrically gradated carbon foam materials exhibit increasing electrical resistivity through the thickness of the carbon foam material such that the electrical resistivity near a second surface of the carbon foam is at least 2 times greater than the electrical resistivity near a first surface of the carbon foam. These electrically gradated carbon foam materials may be used as radar absorbers, as well as in electromagnetic interference (EMI) shielding schemes.

    摘要翻译: 这里描述了通过碳泡沫材料的厚度具有变化或不同电性能的电分级碳泡沫材料以及用于制造这些电分级碳泡沫材料的方法。 在一些实施例中,电分级碳泡沫材料通过碳泡沫材料的厚度显示出增加的电阻率,使得碳泡沫的第二表面附近的电阻率比第一表面附近的电阻率高至少2倍 碳泡沫。 这些电分级碳泡沫材料可用作雷达吸收体,以及电磁干扰(EMI)屏蔽方案。

    Construction composition and method for making a construction product
    5.
    发明授权
    Construction composition and method for making a construction product 有权
    制造建筑产品的施工组成和方法

    公开(公告)号:US07837787B2

    公开(公告)日:2010-11-23

    申请号:US10592367

    申请日:2004-03-12

    申请人: Robin De La Roij

    发明人: Robin De La Roij

    IPC分类号: C04B18/06

    摘要: A construction composition includes: an ash in an amount of 90.0-99.9 wt. %, based on the total weight of the construction composition, wherein the ash is fly ash or bottom ash; an additive composition in an amount of 0.1-10.0 wt. %, based on the total weight of the construction composition, wherein the additive composition includes a component from group (2a) and a component from group (2b), wherein group (2a) consists of metal chlorides and wherein group (2b) consists of silica, zeolite and apatite, and wherein group (2a) includes 70.0-99.0 wt. % of the total additive composition and group (2b) comprises 1.0-30.0 wt. % of the total additive composition; and cement, in an amount of 0.0-5.0 wt. %, based on the total weight of the construction composition. With this composition, fly ash can be used as construction material, having properties comparable or better than concrete.

    摘要翻译: 施工组合物包括:灰分为90.0-99.9重量% %,基于施工组合物的总重量,其中灰分是飞灰或底灰; 0.1-10.0重量%的添加剂组合物。 %,基于构建组合物的总重量,其中添加剂组合物包含组(2a)的组分和组(2b)的组分,其中基团(2a)由金属氯化物组成,并且其中基团(2b)由 二氧化硅,沸石和磷灰石,其中组(2a)包括70.0-99.0wt。 总添加剂组合物和组(2b)的%包含1.0-30.0重量% 总添加剂组成的%; 和水泥,其量为0.0-5.0重量%。 %,基于施工组成的总重量。 使用这种组合物,飞灰可以用作建筑材料,具有与混凝土相当或更好的性能。

    Borated Concrete-Rubber
    6.
    发明申请
    Borated Concrete-Rubber 审中-公开
    硼化混凝土橡胶

    公开(公告)号:US20100258751A1

    公开(公告)日:2010-10-14

    申请号:US12665241

    申请日:2008-06-20

    申请人: Zeev Shayer

    发明人: Zeev Shayer

    IPC分类号: G21F1/00 B29B9/00

    摘要: A concrete material is disclosed according to one embodiment. The concrete material may include a mixture of cement, granular rubber and boron in various forms and ratios. The boron may include boron carbide. The rubber may be recovered rubber from used automobile and/or truck tires. Various other components may be added to the cement, such as, for example, binders, water, sand, rock, or other aggregates. Embodiments described herein may be used in radiation shielding applications, such as, for example, nuclear waste facilities, nuclear storage and/or transportation casks, nuclear power plants, medical waste facilities, illicit drug detection facilities, linear accelerator facilities, etc.

    摘要翻译: 根据一个实施例公开了一种混凝土材料。 混凝土材料可以包括各种形式和比例的水泥,颗粒状橡胶和硼的混合物。 硼可以包括碳化硼。 橡胶可以从二手汽车和/或卡车轮胎回收橡胶。 各种其它组分可以添加到水泥中,例如粘合剂,水,砂,岩石或其他聚集体。 本文描述的实施例可以用于辐射屏蔽应用,例如核废物设施,核储存和/或运输桶,核电厂,医疗废物设施,非法药物检测设备,直线加速器设备等。

    Electrically Gradated Carbon Foam
    8.
    发明申请
    Electrically Gradated Carbon Foam 失效
    电分级碳泡沫

    公开(公告)号:US20080299378A1

    公开(公告)日:2008-12-04

    申请号:US11964036

    申请日:2007-12-25

    IPC分类号: B32B5/18

    摘要: Electrically gradated carbon foam materials that have changing or differing electrical properties through the thickness of the carbon foam material and methods for making these electrically gradated carbon foam materials are described herein. In some embodiments, the electrically gradated carbon foam materials exhibit increasing electrical resistivity through the thickness of the carbon foam material such that the electrical resistivity near a second surface of the carbon foam is at least 2 times greater than the electrical resistivity near a first surface of the carbon foam. These electrically gradated carbon foam materials may be used as radar absorbers, as well as in electromagnetic interference (EMI) shielding schemes.

    摘要翻译: 这里描述了通过碳泡沫材料的厚度具有变化或不同电性能的电分级碳泡沫材料以及用于制造这些电分级碳泡沫材料的方法。 在一些实施例中,电分级碳泡沫材料通过碳泡沫材料的厚度显示出增加的电阻率,使得碳泡沫的第二表面附近的电阻率比第一表面附近的电阻率高至少2倍 碳泡沫。 这些电分级碳泡沫材料可用作雷达吸收体,以及电磁干扰(EMI)屏蔽方案。

    Heavy mass for manufacturing products with a high radioprotection capacity
    9.
    发明申请
    Heavy mass for manufacturing products with a high radioprotection capacity 审中-公开
    重质量产品具有较高的防辐射能力

    公开(公告)号:US20070276176A1

    公开(公告)日:2007-11-29

    申请号:US11802689

    申请日:2007-05-24

    IPC分类号: G21F9/16 C04B18/18

    摘要: The mass, as that of any conventional concrete, is based on cement, aggregates, water and chemical additives that modify the properties of the concrete. According to the invention, the mass uses magnetite as an aggregate, with a highly continuous grain size in order to obtain an optimum homogeneity of the mass as well as a high density which provide an optimum barrier effect against radiation, allowing to reduce substantially the thickness of the wall required without affecting the barrier effect. The mass is ideally suited for obtaining poured concrete, concrete for bricks, concrete for slabs and dry mortar used to build radioactive premises such as radiotherapy and brachytherapy bunkers, radiology walls, etc.

    摘要翻译: 任何常规混凝土的质量基于改变混凝土性能的水泥,骨料,水和化学添加剂。 根据本发明,质量使用磁铁矿作为骨料,具有高度连续的晶粒尺寸,以获得质量的最佳均匀性以及提供对辐射的最佳屏障效应的高密度,允许基本上减小厚度 的墙壁,而不影响屏障效果。 质量非常适合用于获得浇筑混凝土,砖混凝土,板坯混凝土和用于建造放射性处理场所的干砂浆,如放射治疗和近距离放射治疗舱,放射学墙等。

    Antiradiation concrete and antiradiation shell

    公开(公告)号:US06630683B2

    公开(公告)日:2003-10-07

    申请号:US09790031

    申请日:2001-02-21

    申请人: Dieter Vanvor

    发明人: Dieter Vanvor

    IPC分类号: G21C1100

    摘要: A first antiradiation concrete includes a metallic aggregate having a grain size of up to 7 mm, and at least 5.0% by weight, in particular at least 7.8%, of a boron-containing aggregate having a grain size of up to 1 mm and being finer-grained than the metallic aggregate. A second antiradiation concrete includes a boron-containing aggregate having a grain size of up to 1 mm, and between 80 and 90% by weight, in particular 85 to 89%, of a metallic aggregate having a grain size of up to 7 mm. For the second concrete, the boron-containing aggregate is between 1.0 and 1.5% by weight. To achieve a shielding action that absorbs as much heat and radiation as possible, an antiradiation shell (2) has a wall region (2a to 2z) formed from the first or second antiradiation concrete where each has a boron-containing aggregate with a grain size up to 1 mm and a metallic aggregate grain size up to 7 mm.