摘要:
A body shield (10) is disclosed for protecting a user from harmful thermal and electromagnetic radiation. The body shield includes a multi-layered core (11) which is surrounded by an outer casing (12). The multi-layered core includes a first layer (14) of a magnetic metal alloy for shielding extremely low frequency electromagnetic radiation, a second layer (15) of a carbon based material for absorbing higher frequency electromagnetic radiation, and a third layer (16) of a non-magnetic material for reflecting higher frequency electromagnetic radiation. The outer casing includes a thermal resistant top layer (18) and a thermal resistant bottom layer (19) sealed around its periphery to the top layer.
摘要:
A method for underwater packaging of radioactive materials includes creating a vacuum in a cavity of a cleaning device to automatically cause a portion of the cleaning device to move upward to actuate the cleaning device from an open position to a closed position; mounting the cleaning device inside a safe containment area of a transportation and/or storage device; placing the transportation and/or storage device in a pool after filling the safe containment area with water; loading a radioactive material into the safe containment area; closing the transportation and/or storage device using at least one cover; extracting the transportation and/or storage device from the pool; draining the water inside the safe containment area; and creating a pressure differential in the safe containment area to dry the safe containment area, wherein the pressure differential causes the cleaning device to automatically actuate from the closed position to the open position.
摘要:
A method for storing high level radioactive waste in a passively cooled cavity. In one embodiment, the invention comprises: (a) providing a container comprising an outer shell having an open top end and a hermetically closed bottom end, an inner shell forming a cavity, the inner shell positioned within the outer shell so as to form a space between the inner shell and the outer shell, and at least one opening in the inner shell that forms a passageway between the space and a bottom portion of the cavity; (b) lowering a hermetically sealed canister holding high level radioactive waste into the cavity via the open top end; and (c) positioning a lid having at least one inlet vent and at least one outlet vent atop the container such that the at least one inlet vent forms a passageway from an ambient atmosphere to the space and the at least one outlet vent forms a passageway from the cavity to the ambient atmosphere, the lid substantially enclosing the open top end.
摘要:
A radiation-shielding material is made of hydrogen-filed glass microspheres embedded within a suitable binder and held within a suitable support structure. The shielding material can be customized to various radiation field environments by adding a metallic coating to the microspheres or adding metal to the binder. In addition, the microspheres can be filled with a combination of gases or supplemented by other microspheres filled with different gases to meet specific radiation shielding requirements.
摘要:
An energy absorbing and displacing structure for athletic protective equipment, such as an athletic shin-guard, is provided using a flexible web-shaped body to hold a rigid band-shaped member in place.The inner rigid band-shaped member follows the contour of the desired area to protect. The outer flexible web-shaped body is made of a softer rubber like material and works as a locator and supporter keeping the inner, rigid band-shaped member, in proper location.
摘要:
A neutron shield material that exhibits high heat resistance and ensures neutron shielding capacity. A composition for neutron shield material excelling in heat resistance and ensuring neutron shielding capacity is provided by comprising a hydrogenated bisphenol type epoxy of the formula: (1) (wherein each of R1 to R4 is independently selected from the group consisting of CH3, H, F, Cl and Br, and n=0 to 2), a hardening agent component having at least one cyclic structure and two or more amino groups, a density increasing agent and a boron compound.
摘要:
A method includes exposing a plate on a support surface of an imager using one or more laser beams, the exposing while there is a metallic screen structure located on the support surface between the plate and the support surface such that the amount of back-reflected radiation is reduced compared to the plate being placed directly on the support structure with no screen between the plate and support surface. An apparatus includes the combination of a base material having the support surface and the metallic screen structure thereon.
摘要:
A radiation shielding material contains ground scrap tire rubber, granulated iron or other metals of moderate cost, and a suitable binder, such as polyurethane or asphalt. The rubber particles can also have a metallic coating.
摘要:
A radiation-shielding material is made of hydrogen-filed glass microspheres embedded within a suitable binder and held within a suitable support structure. The shielding material can be customized to various radiation field environments by adding a metallic coating to the microspheres or adding metal to the binder. In addition, the microspheres can be filled with a combination of gases or supplemented by other microspheres filled with different gases to meet specific radiation shielding requirements.
摘要:
Methods of treating radioactive materials are disclosed. In one aspect, a method may include mixing a radioactive isotope diluted in a filler material with a radioactive material treatment composition to form a resulting material. The radioactive material treatment composition may include mostly salt, and from 0.5 to 15 wt % sorbent. The method may further include mixing the resulting material with one or more inorganic binding agents. Other methods of treating radioactive materials are also disclosed, as well as compositions for treating radioactive materials.