-
公开(公告)号：US11569054B2
公开(公告)日：2023-01-31
申请号：US17679209
申请日：2022-02-24
申请人： Han Sung Lee
发明人： Han Sung Lee
摘要： Disclosed is a ceramic shielding apparatus including at least one shield made of a ceramic material and provided inside or outside an X-ray tube to shield radiation; and supports configured to support the shield. According to such a configuration, disadvantages of conventional shielding materials such as lead can be addressed, so that a shield apparatus having excellent shielding properties while being harmless to the human body can be provided.
-
公开(公告)号：US20230023052A1
公开(公告)日：2023-01-26
申请号：US17887083
申请日：2022-08-12
发明人： Francesco Venneri , Danyal Turkoglu , Michael John Eades , Christopher Morrison , Paolo Francesco Venneri
摘要： A chargeable atomic battery (CAB), such as a fully ceramic encapsulated radioactive heat source, includes a plurality of CAB units and a CAB housing to hold the plurality of CAB units. Each of the CAB units are formed of a precursor compact including precursor material particles embedded inside an encapsulation material. The precursor material particles include a precursor kernel formed of a precursor material that is initially manufactured in a stable state or an unstable state and convertible into an activated material that is an activated state via irradiation by a particle radiation source. The precursor material particles can include one or more encapsulation coatings surrounding the precursor kernel. The precursor material can include Neptunium-237 and the activated material can include Plutonium-238. A radioisotope thermoelectric generator can include thermoelectrics coupled to the CAB units to convert radioactive emissions of the activated material into electrical power.
-
公开(公告)号：US20210366625A1
公开(公告)日：2021-11-25
申请号：US16499525
申请日：2018-10-03
发明人： Robert G. Abboud
摘要： Composition, manufactures, and processes of making and using them, consisting essentially of a neutron absorbent, having a neutron absorption cross section greater than or equal to Boron comprising at least 19.7% of Boron-10 isotope, and a thermal conductor having a thermal conductivity of at least 10% of water thermal conductivity at 100 degrees C. at sea level, combined such that the particles have a density of at least 0.9982 g/mL and not more than 2.0 g/ml. The composition can be located for release responsive to a loss of normal heat sink event and/or a loss of normal coolant event in a quantity sufficient, to palliate the loss of the normal heat sink event and/or the loss of normal coolant event.
-
公开(公告)号：US10580540B2
公开(公告)日：2020-03-03
申请号：US15862733
申请日：2018-01-05
摘要： A neutron absorber member including a tube having a split extending radially completely through a sidewall of said tube throughout the entire axial length thereof such that the absorber member has a C-shaped geometry formed by the split. The sidewall of the tube is resiliently biased radially outwards and comprised of a metal matrix composite that is configured to absorb neutrons emanation from a spent fuel assembly in a sufficient amount to thereby maintain subcriticality of said spent fuel assembly.
-
公开(公告)号：US10035895B2
公开(公告)日：2018-07-31
申请号：US15404721
申请日：2017-01-12
申请人： TennVac Inc. , TennMax America Inc.
发明人： Hsin-Pei Cheng
IPC分类号： G21F1/02 , G21F1/06 , G21F1/10 , C08K3/04 , C08K3/36 , C08K9/04 , C08K3/08 , C08G77/04 , C08G77/08 , H05K9/00
CPC分类号： C08K3/08 , C08G77/04 , C08G77/08 , C08G77/16 , C08G77/20 , C08K3/04 , C08K3/36 , C08K9/04 , C08K2003/0862 , C08K2201/001 , C08L83/04 , H05K9/0015 , H05K9/0092 , C08L83/00 , C08K5/56 , C08K9/06
摘要： The present invention discloses a form-in-place conductive and waterproof colloid, being composed of: dimethyl siloxane or dimethylvinyl-terminated or vinyl terminated polydimethylsiloxane; hydroxy terminated polydimethylsiloxane; dispersant; dimethyl, methylhydrogen siloxane crosslinking agent; adhesion promoter; Pt catalyst; forming agent; hydrocarbon solvent; Nickel Graphite; thickening agent; Trimethylated silica; and inhibitor. With the implementation of the present invention, no production mold or die cutter is required to simplify the process of applying the colloid and reduce the cost of applying, and with the characteristics of being providing waterproof and dustproof capability for enclosures, providing excellent adhesion capability, providing excellent compressibility and resilience, isolating EMI and providing EMI shielding capability at the same time. Besides, the space required is small when forming or applying making the colloid suitable for applications to small or mini devices and save the cost of material and cost of implementation.
-
公开(公告)号：US09991011B2
公开(公告)日：2018-06-05
申请号：US15101574
申请日：2013-12-27
发明人： Deuk Man Kim , Hyun Je Cho , Cheon Woo Kim
IPC分类号： G21F9/30 , C03C3/097 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/108 , C03C8/02 , C03C8/04 , C03C8/08 , C03C8/12 , G21F1/06
CPC分类号： G21F9/305 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/097 , C03C3/108 , C03C8/02 , C03C8/04 , C03C8/08 , C03C8/12 , C03C2205/00 , C03C2214/14 , G21F1/06 , G21Y2002/60 , G21Y2004/10
摘要： This invention relates to the vitrification of radioactive waste products. According to this invention, a glass composition that is suitable for mixed waste products, which include flammable waste products, such as gloves, working clothes, plastic waste, and rubber, and low-level radioactive waste products, and a method of vitrifying the mixed waste products using the same are provided to significantly reduce the volume of radioactive waste products and to vitrify the mixed waste products using the glass composition, which is suitable for vitrifying the mixed waste products, thereby maximally delaying or completely preventing the leakage of radioactive materials from a glass solidified body.
-
7.发明申请公开(公告)号：US20180065857A1
公开(公告)日：2018-03-08
申请号：US15692870
申请日：2017-08-31
IPC分类号： C01B32/991 , B01J13/00 , G21F1/06
CPC分类号： C01B32/991 , B01J13/0065 , C01P2004/64 , G21F1/06
摘要： The present invention relates to a process for the preparation of boron carbide nanoparticles, characterized in that it comprises at least the stages consisting in: (i) interacting boric acid, boron oxide B2O3 or a boric acid ester of B(OR)3 type, with R, which are identical or different, representing C1-4-alkyl groups, with 1 to 2 molar equivalents of at least one C2 to C4 polyol, under conditions favorable to the formation of a boron alkoxide powder; (ii) interacting, in an aqueous medium, the boron alkoxide powder obtained on conclusion of stage (i) with an effective amount of one or more completely hydrolyzed polyvinyl alcohols, with a molar mass of between 10 000 and 80 000 g.mol−1, under conditions favorable to the formation of a crosslinked PVA gel, and (iii) carrying out an oxidizing pyrolysis of the crosslinked gel formed on conclusion of the preceding stage (ii), under conditions favorable to the formation of the CB4 nanoparticles.
-
8.发明授权公开(公告)号：US09902832B2
公开(公告)日：2018-02-27
申请号：US14762403
申请日：2014-01-16
IPC分类号： C08K3/34 , C09K21/02 , C09K5/14 , G10K11/165 , H05K9/00 , F16L59/02 , C08K3/00 , C08J9/00 , C05D3/02 , G10K11/162 , G21F1/06 , G21F1/04 , G21F1/10 , C09K8/03 , C01F7/06 , C05D9/02 , C05F7/00 , C04B18/04 , C08K11/00 , C04B103/63
CPC分类号： C08K3/016 , C01F7/066 , C01P2002/72 , C01P2002/88 , C01P2006/12 , C04B18/0409 , C04B2103/63 , C05D3/02 , C05D9/02 , C05F7/005 , C08J9/0066 , C08J2323/08 , C08K3/346 , C08K11/005 , C09K5/14 , C09K8/03 , C09K8/032 , C09K21/02 , F16L59/028 , G10K11/162 , G10K11/165 , G21F1/042 , G21F1/06 , G21F1/103 , H05K9/0081 , Y02W30/91 , C04B20/023
摘要： The disclosure relates to an inorganic, halogen-free flameproofing agent produced from modified, recarbonized red mud (MKRS-HT). The agent may have a mineral composition of 10 to 50 weight % of iron compounds, 12 to 35 weight % of aluminum compounds, 5 to 17 weight % of silicon compounds, 2 to 10 weight % of titanium dioxide, 0.5 to 6 weight % of calcium compounds the weight ratio of Fe (II) carbonate to the oxides of iron being at least 1. The agent, according to examples, can be used as a flame retardant in the high-temperature range. The disclosure further relates to flameproofing agent produced from modified, recarbonized and rehydrated red mud, which may be a flame retardant in the low-temperature range as well as in the high-temperature range, methods for producing same and use as flame retardants, substitutes, synergists, thermal stabilizers, heat accumulators, heat insulators and/or sound insulators and/or as electromagnetic radiation shielding materials.
-
公开(公告)号：US20170098485A1
公开(公告)日：2017-04-06
申请号：US14876717
申请日：2015-10-06
申请人： Leif A. Poulsen
发明人： Leif A. Poulsen
CPC分类号： G21F1/06 , G21F3/00 , G21F9/18 , G21F9/30 , G21F9/36 , G21Y2002/501 , G21Y2002/60 , G21Y2004/10 , G21Y2004/305
摘要： A method of reducing radiation emitted from a radioactive source material involves mixing the radioactive material with mica. Uranium ore is a radioactive source material which when mixed with mica significantly reduces the amount of radiation emitted. The radioactive source material and the mica may be ground to similar sized small pieces and mixed at a one to one ratio. The radioactive source material and the mica may be consistently mixed together. In the alternative the mica may be placed around the outside of the radioactive source material. The mica may contain manganese.
-
10.发明授权Nanostructured glass ceramic neutron shield for down-hole thermal neutron porosity measurement tools 有权用于井下热中子孔隙度测量工具的纳米结构玻璃陶瓷中子屏蔽公开(公告)号：US09575207B1
公开(公告)日：2017-02-21
申请号：US15062373
申请日：2016-03-07
摘要： An apparatus for providing a signal indicative of a property of an earth formation includes: a carrier conveyable through a borehole; a neutron source disposed on the carrier and configured to emit neutrons into the earth formation; a radiation detector disposed on the carrier and configured to detect radiation from the earth formation due to interaction of emitted neutrons with the earth formation and to provide the signal indicative of the property; and a neutron shield configured to shield the radiation detector from emitted neutrons that did not interact with the earth formation; wherein the radiation detector shield includes a glass ceramic material having a plurality of nano-crystallites, each nano-crystallite in the plurality having a periodic crystal structure with a diameter or dimension that is less than 1000 nm that includes Li and/or Boron and a rare-earth element that have positions in the periodic crystal structure of each nano-crystallite.
摘要翻译： 用于提供指示地球物理特性的信号的装置包括：可通过钻孔传送的载体; 中子源，设置在载体上并且构造成将中子发射到地层中; 放射线检测器，设置在所述载体上并且被配置为检测由于发射的中子与地球相互作用而产生的地球的辐射并且提供指示所述性质的信号; 以及中子屏蔽，被配置为屏蔽辐射探测器与未与地层相互作用的发射中子; 其中所述辐射检测器屏蔽包括具有多个纳米微晶的玻璃陶瓷材料，其中每个纳米微晶具有包括Li和/或硼的直径或尺寸小于1000nm的周期性晶体结构，和 在每个纳米微晶的周期性晶体结构中具有位置的稀土元素。
-
-
-
-
-
-
-
-
-
搜索结果
108 条记录 (耗时 0.024 秒)
