摘要:
PROBLEM TO BE SOLVED: To solve the problems that conventional building materials use a large number of sheets of wall paper and plastered walls but these materials cause the generation of molds caused by the shortage of the absorption/release of humidity, furthermore these materials have no function of attracting, absorbing and decomposing organic compounds such as formaldehyde or the like, and are regarded as problematic in a health aspect, and that, in using present diatom soil-contained plastered walls and coatings, it is essential to use a pasting material but it needs a plastering technology and causes an increase in cost, while causing the fall-off or cracks of the coating materials which are note solved in problem only by the plastering technology, resulting in the extension of a necessary execution period and in the deterioration of effects of the diatom soil besides the problem of the harmfulness of adhesives and pasting materials. SOLUTION: The diatom soil-contained building material provides environmental functions of the diatom soil as an integrated building material by making the most of characteristics of the air permeability and humidity absorbing properties of a natural porous wood and by filling finely perforated diatom soil with higher air permeability and humidity absorbing properties in the inner space of a wood building to enhance building material performance. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a neutron-shielding body having extremely low reflection of low energy neutron flux, in order to decrease low energy neutron flux inside an acceleration chamber or a measuring chamber. SOLUTION: A neutron-shielding body 12 is constituted with a concrete wall 14 and a mortal wall 16 formed by coating mortal on the concrete wall 14. An accelerating chamber or a measuring chamber 18 is formed with a plurality of neutron-shielding bodies 12 corresponding to the floor, ceiling and wall, and the mortal wall 16 faces the whole floor, whole ceiling and whole wall of the accelerating chamber or the measuring chamber 18. The mortal contains B 4 C from 5×10 20 /cc to 5×10 22 /cc, in terms of boron. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a radiation resistant lens formed of an optical material, which is less likely to cause radiation-derived browning despite its high refractive index, a radiation shield and a lens module and a television camera for a high radiation environment using the radiation resistant lens and the radiation shield. SOLUTION: The radiation resistant lens or the radiation shield is formed of any one of a light transmissive ceramic produced by sintering a material having a composition comprising a main component represented by general formula Baä(Sn u Zr 1-u ) x Mg y Ta z } v O w , wherein (w) is a positive number for keeping electric neutrality, with satisfying x + y + z = 1, 0.100≤x≤0.700, 1.80≤z/y≤2.20, 1.00≤v≤1.05, and u×x≤0.05, a YAG crystal or a lithium tantalate crystal. The lens module and the television camera for the high radiation environment use the radiation resistant lens or the radiation shield. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译:要解决的问题:为了提供由光学材料形成的防辐射透镜,尽管其折射率高,不太可能引起辐射源的褐变,辐射屏蔽和透镜模块以及用于高的透镜模块和电视摄像机 使用防辐射透镜和辐射屏蔽的辐射环境。 解决方案:防辐射透镜或辐射屏蔽由任何一种透光陶瓷形成,该透光陶瓷通过烧结具有包含由通式Baa表示的主要成分(Sn u SB> 的Zr 1-U SB>) X SB>镁ý SB> TA ž SB>} v SB> 0
摘要:
PROBLEM TO BE SOLVED: To provide a glass composition exhibiting high radiation shielding performance in a glass system consisting essentially of a B 2 O 3 component and La 2 O 3 component. SOLUTION: The glass composition contains 20-35% B 2 O 3 , 16-50% La 2 O 3 , 0-30% WO 3 , 0-25% Gd 2 O 3 and/or Dy 2 O 3 and/or Lu 2 O 3 , 0-5% M 2 O 3 (M is one or more kinds selected from a group of Al, Ga and In) and 0-10% BaO by mass expressed in terms of oxide and has ≥0.05 mmPb/mm lead equivalent to X-ray of 150 kV. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a glass composition exhibiting high radiation shielding performance in a glass system consisting essentially of a B 2 O 3 component and La 2 O 3 component. SOLUTION: The glass composition contains 5 to 2 O 3 , 16-50% La 2 O 3 , 0-5% M 2 O 3 (M is one or more kinds selected from a group of Al, Ga and In), 0-25% Gd 2 O 3 and/or Dy 2 O 3 and/or Lu 2 O 3 and 0-10% BaO by mass expressed in terms of oxide and has ≥0.05 mmPb/mm lead equivalent to X-ray of 150 kV. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a radiation shielding article which causes no environmental pollution, endures flaw, and prevents fragments from spattering even if glass is broken. SOLUTION: The method of manufacturing a radiation shielding article 10 comprises: a step of preparing batch raw materials for melting, forming them in a plate shape by a float method, and manufacturing a glass plate 11 made of glass that does not contain any Pb essentially, where a lead equivalent to 100 kV X rays is equal to or more than 0.03 mmPb/mm; and a step of bonding a plurality of glass plates 11 with a resin film 12. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a disposal container and disposal method for high level radioactive waste and TRU waste which can assure safety for a long period by preventing degradation of the disposal container due to corrosion when the high level radioactive waste and TRU waste are disposed of, and can reduce the energy and resource required in manufacturing the disposal container. SOLUTION: The disposal container is constituted of a complex materials obtained by forming the container body by spreading mixture of organic polymer material to be a precursor of ceramic fiber and fine powder of one or more kinds of carbon, silicon-carbide, boron-nitride, or boro-silicon carbonitride on the ceramic fiber or cloth consisting of carbon fiber or the silicon-carbide fiber, and sintering the container shape. The high level radioactive waste or TRU waste are contained in the disposal container, which is disposed of in stratum in a state placing clay material in which one or more kinds of carbon, silicon carbide or boron nitride are added are placed around the container. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To provide a boron carbide nanobelt with two dimensions of 50 μm-100 μm in length, 5 μm-10 μm in width, and 20 nm-100 nm in thickness, and to provide a manufacturing method of a boron carbide nanobelt. SOLUTION: The boron carbide nanobelt with a size of 50 μm-100 μm in length, 5 μm-10 μm in width and 20 nm-100 nm in thickness, is obtained by charging a boron oxide powder 20 into a graphite crucible 10 and then arranging a graphite mesh 30 and a boron nitride plate 40 above the boron oxide powder 20 in this crucible 10, and thereafter by heating it at 1,900°C-2,000°C for 0.5-1.5 hours under a nitrogen gas atmosphere in a vertical-type high frequency induction heating furnace. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To provide a radiation shielding material which does not cause environmental pollution, has transparency hardly reduciable even when its surfaces are cleaned, and is resistant to flaws. SOLUTION: The radiation shielding material is made of glass which does not substantially contains Pb and contains both SiO 2 of 40-70 mass% and Al 2 O 3 of 4.1-15 mass% and in which a lead equivalent to X-rays of 100 kV is of 0.03 mmPb/mm or more. COPYRIGHT: (C)2004,JPO
摘要翻译:要解决的问题:为了提供不引起环境污染的辐射屏蔽材料,即使在其表面被清洁时也具有难以降低的透明性,并且耐瑕疵。 解决方案:辐射屏蔽材料由玻璃制成,其基本上不含Pb,并且含有40-70质量%的SiO 2 SB>和Al O 3 SB>为4.1-15质量%,其中相当于100kV的X射线的铅为0.03mmPb / mm以上。 版权所有(C)2004,JPO