Abstract: Described herein are articles composed of coatings with improved gamma radiation shielding and physical properties. In one aspect, the article is composed of a coating, where the coating includes a first layer composed of a first Z grade material, a second layer composed of a second Z grade material, and a third layer composed of a third Z grade material, wherein the atomic number of the first Z grade material and the third Z grade material is less than the atomic number of the second Z grade material. In one aspect, the substrate of the article is a textile. Methods for making the articles described herein are also provided.

Abstract: A multi-beam pattern definition device for use in a particle-beam processing or inspection apparatus, which is irradiated with a beam of electrically charged particles through a plurality of apertures to form corresponding beamlets, comprises an aperture array device in which said apertures are realized according to several sets of apertures arranged in respective aperture arrangements, and an absorber array device having openings configured for the passage of at least a subset of beamlets that are formed by the apertures. The absorber array device comprises openings corresponding to one of the aperture arrangement sets, whereas it includes a charged-particle absorbing structure comprising absorbing regions surrounded by elevated regions and configured to absorb charged particles impinging thereupon at locations corresponding to apertures of the other aperture arrangements of the aperture array device, effectively confining the effects of irradiated particles and electric charge therein.

Abstract: The present invention relates to rigid structures and composite materials thereof for providing radiation attenuation/shielding. Some embodiments pertain to a radiation shielding apparatus including: a plurality of positionable radiation-shielding stacks of tiles. The stacks are subsequently and adjacently arranged in a contiguous configuration. A tile positioning mechanism allows movement of tiles within a stack between a stacked (retracted) position and an extended position. In the extended position, the tiles of each of the plurality of radiation shielding stacks at least partially overlap tiles of subsequent and adjacent tile stack at corresponding opposing side-margins thereof.

Abstract: A high-pass radiation shield for using during radiological examinations is provided. The shield comprises: a first sublayer having a first radiation attenuation material of atomic number from 21 to 30; and a second sublayer having a second radiation attenuation material of atomic number 56 or greater. The weight of the second radiation attenuation material is not greater than the weight of the first radiation attenuation material. The shield is configured for placement on a patient's body over the entire or a portion of the field of view (FOV) for protection of the organs, especially radiosensitive organs against radiation dangers emitted by an X-ray tube without degrading image quality.

Abstract: A patient positioning device has a robot arm and a patient receptacle held at the robot arm. The patient positioning device has a housing assembly for the robot arm. The housing assembly is provided with one or more housing units surrounding the robot arm at least partially. The one or more housing units are secured at the robot arm. The patient positioning device is provided with a shielding against ionizing radiation. At least one part of the shielding is arranged at the one or more housing units.

Abstract: Electronic devices according to embodiments of the present technology may include a battery. The devices may include a nanocrystalline foil. The devices may include a wireless charging coil seated on the nanocrystalline foil. The devices may also include an integrated circuit configured to operate the wireless charging coil in a wireless charging transmission mode.

Abstract: A vacuum container is configured so that an opening on one side and an opening on another side in the longitudinal direction of a cylindrical insulating body are sealed with an emitter unit and a target unit respectively; and a vacuum chamber is provided on the inner peripheral side of the insulating body. The emitter unit is provided with: a moving body located on the one side in the longitudinal direction in the vacuum chamber and supported so as to be movable in the longitudinal direction via a bellows; and a guard electrode located on the outer peripheral side of the moving body. An emitter section having an electron generating section is formed at a tip section of the moving body on the other side in the longitudinal direction by subjecting the surface of the tip section to film formation processing.

Abstract: A shielding apparatus is provided. The shielding apparatus includes: at least one shielding shell segment, the at least one shielding shell segment constituting a shielding chamber, the shielding chamber being arranged on a periphery of a radiation device and shielding radiation generated by the radiation device. The shielding chamber is arranged on the periphery of the radiation device, and the shielding chamber at least partially shields scattering radiation generated by the radiation device, which can thus reduce the requirements of the radiation device for radiation shielding of a dedicated machine room or get rid of the dependence of the radiotherapy device on a dedicated machine room.

Abstract: A shoulder transfer weight support generally having a hip or waist belt, a back support, and one or more shoulder extensions. The back support has an upper back plate attached to the shoulder extensions and a lower back plate attached to one or more hip belts. The lower back plate features a bracket shaped to receive an end of the attachment bar that joins it to the upper back plate. A spring-loaded plunger can be inserted into the attachment bar to allow for height adjustment of the device. A face shield at least partially made of a radiopaque material and can attach to the back support. One attachment option is a yoke mount with vertical sections at either end of the yoke mount. A second option involves a mount that attaches to the shoulder extension(s). The device can use a full face shield or a face shield with an open front.

Abstract: The present disclosure, in an embodiment, is a facility that includes a device configured to generate a beam having an energy range of 5 MeV to 500 MeV, a first radiation shielding wall surrounding the device, a second radiation shielding wall surrounding the first radiation shielding wall, radiation shielding fill material positioned between the first radiation shielding wall and the second radiation shielding wall forming a first barrier. In embodiments, the radiation shielding fill material includes at least fifty percent by weight of an element having an atomic number from 12 to 83, and a thickness of the first barrier is 0.5 meter to 6 meters.

Abstract: A containment enclosure for shielding an outer cask containing an inner canister loaded with nuclear waste such as spent fuel rods. The enclosure includes a lower base portion at least partially embedded in a concrete pad and an upper radiation shielding portion defined by a shield jacket coupled to and supported by the lower base portion at a circumferential joint. Cavities of the base and shielding portions collectively define a contiguous containment space for the cask. A portion of the cask resides in each of the base and shielding portions which completely enclose and shield the cask to minimize radiation dosage of personnel in the environment surrounding the cask. The cask is cooled by a natural convectively-driven ambient cooling air ventilation system including air inlets at the circumferential joint of the enclosure. The concrete pad may be part of a spent nuclear fuel storage installation comprising plural cask containment enclosures.

Abstract: A radiation protection material (10) is arranged between at least two layers (21, 22) of at least one plastic-containing element in order to produce a radiation protection element. At least part of the gas present between the at least two layers (21, 22) is removed. The at least two layers (21, 22) are connected with each other.

Abstract: An additive-manufacturing resin vat system can include a resin vat, a flexible plastic film, a transparent support window, a transparent conductive coating, a support tray, and a set of metal contacts. The resin vat can carry a resin-print material mixture. The flexible plastic film can mechanically seal to a bottom of the resin vat. The transparent support window can support the flexible plastic film. The transparent conductive coating can be formed on at least one side of the transparent support window. The support tray can define an outer tray portion and an open tray interior, the outer tray portion carrying the transparent support window. The metal contacts can be carried by the outer tray portion and configured to electrically couple with the transparent conductive coating. The transparent conductive coating is configured to generate heat upon receiving an electrical current via the metal contacts.

Abstract: Disclosed herein are systems, methods, and computer-readable storage devices for manufacturing patient-specific bolus for use in targeted radiotherapy treatment. Based on dose calculations without a bolus and based on three-dimensional scan data of a patient, the example system generates a model of a bolus for targeting radiotherapy treatment to a planning target volume or target region within the patient. The system can perform several iterations to generate a resulting model for the bolus. Then, the system can generate instructions for controlling a three-dimensional printer to generate the bolus that conforms to the patient's skin surface while also specifically targeting the planning target volume for the radiotherapy treatment. In this way, the amount of radiotherapy treatment administered to other tissue is reduced, while the costs, time, and human involvement in creating the bolus are significantly reduced.

Abstract: A shield structure configured to protect a head and/or neck of a patient during a radiologic procedure comprises a bottom wall, a side wall, and an opening. The bottom wall includes radiation attenuating material and is configured to be positioned between the head and/or neck of the patient and a radiation source so as to shield the patient from radiation directed toward the bottom of the patient. The bottom wall is of a general size to shield the head and/or neck of the patient. The side wall includes radiation attenuating material and is configured to extend upward from the bottom wall so as to shield the patient from radiation directed toward a side of the patient. The opening is configured to receive the head and/or neck of the patient.

Abstract: A nuclear reactor is provided that comprises a vessel that houses a core, comprising a bundle of fuel elements, and immersed in a primary cooling fluid of the core; the fuel elements extend along respective longitudinal and parallel axes and are mechanically supported by respective heads joined to each other and joined to an anchoring structure by support devices acting between adjacent fuel elements, or acting between fuel elements situated on the periphery of the core and the anchoring structure, and which constitute an integral part of the heads of the fuel elements.

Abstract: A radiation shielding material is fabricated by providing a mixture of a polyester polymer and lead oxide. The material can be formed by the open mold cast technique. A nanocomposite material comprising at least 10% lead oxide is used to provide shielding for diagnostic or medium x-rays. A formulation comprising 40% of lead oxide nanofiller embedded in a polyester matrix performed best at attenuation of diagnostic and medium x-ray levels.

Abstract: A radiation shield assembly is described, configured to block radiation emanating from a radiation source from reaching a user. Two shields are supported by a support arm, and are configured to rotate and translate relative to one another about the support arm's longitudinal axis. This allows the shield to be easily configured and reconfigured as necessary to visualize various parts of a patients body via radiography.

Abstract: Device for protection against electric and/or magnetic fields, in particular electromagnetic fields, comprising a switch and a field coupled with the switch, wherein the switch has at least two protection elements, wherein a protection element comprises at least one film capacitor and at least one diode. The switch emits nature-like wave packets, generated by the diodes and capacitors by spontaneous discharges into the environment and the electric field of the power line, whereby the signals correspond to the electric discharges of AIS. A method for operating such a device is also provided.

Abstract: A shield around an x-ray tube, a voltage multiplier, or both can improve the manufacturing process by allowing testing earlier in the process and by providing a holder for liquid potting material. The shield can also improve voltage standoff. A shielded x-ray tube can be electrically coupled to a shielded power supply.

Abstract: Syringe shield (2) includes a barrel housing (4), which includes: a barrel housing (6) with a radiation-shielding material, a first open end (8), and a second open end (10); and a removable cover (12) which is slidably connectable to the barrel housing (6). The removable cover (12) includes an end cap (14) which covers the second open end (10) when the removable cover (12) is slidably connected to the barrel housing (6). The barrel housing (4) also includes a plunger housing (16) with a radiation-shielding material. A first end (18) of the plunger housing (16) is open and is connectable to the first open end (8) of the barrel housing (4), and a second end (20) of the plunger housing (16) includes a top cap (22).

Abstract: Disclosed is a radiation protection screen for protecting an operator from ionizing radiation, which screen includes a front partition structure that is made of one or more radiation protection materials and a side partition structure that is made of one or more radiation protection materials, the partitions being joined together at a vertical or substantially vertical corner border, and which screen includes feet that are equipped with wheels that rest on the ground. Furthermore, according to the invention, this screen is arranged such that the front partition structure includes a lower portion and an upper portion that may be moved with respect to each other, the upper portion of the front partition structure being mounted so as to be able to pivot in the region of the corner border, about a vertical or substantially vertical pivoting axis.

Abstract: A holding device for use with a patient during an X-ray procedure includes an elongated arm having a proximal end and a distal end, a handle at the proximal end, and a retainer mounted on the distal end of the elongated arm for retaining something that is to be used adjacent to the patient during the X-ray procedure. An X-ray shield may be mounted on the arm between the retainer and the handle. There may be hinged joints between the retainer and the handle.

Abstract: A shield around an x-ray tube, a voltage multiplier, or both can improve the manufacturing process by allowing testing earlier in the process and by providing a holder for liquid potting material. The shield can also improve voltage standoff. A shielded x-ray tube can be electrically coupled to a shielded power supply.

Abstract: A radiation shield is adapted to be disposed transversely across a subject supported on the surface of a procedure table to protect medical professionals working in front of the radiation shield from radiation being applied to the subject behind the radiation shield. The radiation shield includes a movable barrier positional to extend transversely across a subject supported on the surface of a procedure table. The barrier has a generally vertically-oriented lower section; a generally forwardly sloping intermediate section; and a generally vertically-oriented upper section, forwardly offset from the plane of the lower section. A side section extends outwardly and rearwardly from one side of the lower, intermediate, and upper sections of the barrier.

Abstract: Described herein are methods for coating a substrate with a photocatalytic compound, and photocatalytic elements prepared by these methods.

Abstract: Provided is a flexible electromagnetic wave shielding material. An electromagnetic wave shielding material according to an embodiment of the present invention includes a conductive nanofiber web having a nanofiber web formed of a nanofiber and including multiple pores and a metal layer covering at least a portion of the nanofiber disposed on a surface portion of the nanofiber web, wherein a metal particle is provided in at least some of the pores; and an elastic member brought in contact with one surface of the conductive nanofiber web of the metal layer.

Abstract: A radiation-shielded structural enclosure is formed from layers of material having higher and lower Z (atomic) numbers. The enclosure may be formed from layers of titanium that are bonded to opposite sides of a layer of tantalum. A layer of aluminum alloy may be bonded to at least one of the layers of titanium. The enclosure provides structural support for components disposed inside the enclosure and provides radiation shielding for the components.

Abstract: A medical examination device is disclosed, which belongs to the technical field of a fluoroscopy examination, comprising: a display configured to display images; an X-ray source configured to transmit an X-ray; an X-ray detector, which is configured to detect the transmitted X-ray which is emitted from the X-ray source and transmitted through an object to be detected, and to output a detection signal; and a control module, which is configured to connect with the X-ray detector so as to receive the detection signal, to generate images based on the detection signal and to transmit the generated images to the display. One of the X-ray source and the X-ray detector is positioned at a back portion of the display.

Abstract: An inspection apparatus includes a feed-in preparation chamber, an imaging chamber, and a feed-out preparation chamber. Each preparation chamber includes a feed-in unit that receives an inspection object through a first opening, a traverser that translates the received object to a second opening in a direction different from the receiving direction of the object, and a feed-out unit that moves the object in a direction different from a moving direction of the traverser and discharges the object through the second opening. The imaging chamber includes an imaging unit that images the object fed from the feed-in preparation chamber. The traverser includes a mount for the object, and a shield that moves together with the mount and prevents radioactive rays entering one of the first and second openings and propagating in the moving direction of the traverser from reaching the other opening.

Abstract: A gamma radiation detecting device includes a scintillation detector that detects gamma radiation, the detector comprising a scintillation material that includes an element that creates, by neutron activation of the element, an isotope that emits gamma radiation, and a processor configured to monitor the gamma radiation emitted by the isotope, thereby detecting exposure of the gamma radiation detecting device to neutron radiation.

Abstract: In one aspect, a multi-layer absorber is disclosed, which comprises a proximal layer having a radiation-receiving surface adapted for receiving electromagnetic radiation, and a distal layer disposed adjacent the proximal layer to receive at least a portion of the received radiation, if any, transmitted through said proximal layer, wherein said proximal layer exhibits an index of refraction having a real part that is less than the real part of an index of refraction of the said distal layer for at least one frequency of the electromagnetic radiation in a range of about 1 GHz to about 110 GHz.

Abstract: Garments with radiation-reducing pockets and harnessing are described. A shirt can include a pocket made of a radiation-reducing material to place an electronic device such as a smartphone within. This can reduce the amount of radiation absorbed by a user's body. A harness system of the shirt can also distribute the weight of the smartphone to improve the comfort of the user.

Abstract: A device for protection of a body from radiation includes at least one flexible garment. Each section of the flexible garment is configured to shield a region of a surface of the body. Each section complementarily attenuates self-shielding by internal structure between the region and an interior region of the body such that radiation at the interior region is attenuated to a predefined attenuation level.

Abstract: Certain exemplary embodiments can provide a system comprising a substantially transparent radiation shield, which comprises transparent ammonium metatungstate. The transparent ammonium metatungstate can have a density of greater than 1.5 gram/(cubic centimeter). The substantially transparent radiation shield can be installed on tanks and/or pressure vessels, used as a transparent radiation shield in medical shielding/devices, used as windows in glove boxes, and any application where effective radiation shielding is needed with transparency. The substantially transparent radiation shield can be used in one or more articles worn by a human.

Abstract: An over the air measurement module comprises an antenna, adapted to receive a first measuring signal from a device under test or to transmit a second measuring signal to the device under test. It also comprises an analog signal processor, directly connected to said antenna, adapted to reduce a frequency of the received first measuring signal, resulting in a frequency reduced first measuring signal, or adapted to increase a frequency of a frequency reduced second measuring signal, resulting in the second measuring signal. It also has a connector connected to said analog signal processor and is adapted to output the first frequency reduced measuring signal or is adapted to receive the second frequency reduced measuring signal.

Abstract: Methods, processes, and systems of nuclear reactor cores are provided. In one embodiment, the reactor core may comprise a nuclear fuel rod inserted into each of a plurality of moderator blocks in the reactor core; e.g., wherein the fuel comprises plutonium, carbon, hydrogen, zirconium and thorium. In some embodiments, the fuel may comprise hydrogen-containing glass microspheres, wherein the glass microspheres may be coated with a burnable poison, and other coating materials that may aid in keeping the hydrogen within the microsphere glass at relatively high temperature. The disclosed methods, processes and systems may aid in providing energy to remote areas.

Abstract: Disclosed is a detector system for x-ray imaging. The detector system includes a detector having a plurality of edge-on detector modules. Each of the edge-on detector modules includes a first edge that is adapted to be oriented towards an x-ray source and a front-side running essentially parallel to the direction of incoming x-rays. The front-side includes at least one charge collecting electrode. At least a subset of the plurality of edge-on detector modules being pairwise arranged, front-side to front-side, whereby a front-side to front-side gap is defined between the front-sides of the pairwise arranged edge-on detector modules. The pairwise arranged edge-on detector modules are associated with an anti-scatter collimator arranged in the x-ray path between the x-ray source and the edge-on detector modules and overlapping the front-side to front-side gap.

Abstract: A semiconductor package is described which meets a plurality of predetermined electrical, mechanical, chemical and/or environmental requirements. The semiconductor package includes a semiconductor die embedded in or covered by a molded plastic body, the molded plastic body satisfying only a subset of the plurality of predetermined electrical, mechanical, chemical and/or environmental requirements. The semiconductor package further includes a plurality of terminals protruding from the molded plastic body and electrically connected to the semiconductor die, and a coating applied to at least part of the molded plastic body and/or part of the plurality of terminals. The coating satisfies each predetermined electrical, mechanical, chemical and/or environmental requirement not satisfied by the molded plastic body.

Abstract: The disclosed subject matter relates to a radiation shielding apparatus including a cryogenic vessel and a cryogenic hydrogen radiation shielding material capable of providing a radiation shield, the cryogenic hydrogen radiation shielding material including cryogenic hydrogen.

Abstract: A method for defining the shape of a radiation beam that is directed toward a subject and to a free-standing imaging detector detects the position and orientation of the imaging detector relative to a radiation source, then adjusts an aperture that lies in the path of the radiation beam to shape the beam for incidence on a predetermined area of the detector according to the detected imaging detector position. The radiation source is energized to emit the shaped radiation beam and the image data about the subject is acquired from the imaging detector.

Abstract: An amount of radiation exposure of a medical staff is significantly reduced, and a large working area is ensured during an operation. A size of each component of a radiation protection equipment is reduced so as to decrease a weight thereof. The radiation protection equipment is provided, which can be installed within a short time period before an operation and easily put away after the operation. The radiation protection equipment, includes: a first protection sheet arranged on a periphery of a radiation source device and configured to shield radiation; a second protection sheet formed separately from the first protection sheet, arranged on a side of an operation table, and configured to shield radiation; and a third protection sheet formed separately from the first and second protection sheets, arranged on a periphery of a surgical field so as to expose the surgical field, and configured to shield the radiation.

Abstract: An X-ray and gamma-ray shielding glass, including the following components in weight-%: 10-35% SiO2; 60-70% PbO; 0-8% B2O3; 0-10% Al2O3; 0-10% Na2O; 0-10% K2O; 0-0.3% As2O3; 0-2% Sb2O3; 0-6% BaO; and 0.05-2% ZrO2.

Abstract: An amount of radiation exposure of a medical staff is significantly reduced, and a large working area is ensured during an operation. A size of each component of a radiation protection equipment is reduced so as to decrease a weight thereof. The radiation protection equipment is provided, which can be installed within a short time period before an operation and easily put away after the operation. The radiation protection equipment, includes: a first protection sheet arranged on a periphery of a radiation source device and configured to shield radiation; a second protection sheet formed separately from the first protection sheet, arranged on a side of an operation table, and configured to shield radiation; and a third protection sheet formed separately from the first and second protection sheets, arranged on a periphery of a surgical field so as to expose the surgical field, and configured to shield the radiation.

Abstract: A vehicle inspection method is disclosed, comprising steps of: implementing a ray scanning inspection on an inspected vehicle, so as to obtain a ray scanning inspection image of the inspected vehicle; extracting vehicle characteristic information; comparing the vehicle characteristic information of the inspected vehicle to vehicle reference characteristics stored in a database, selecting a closest vehicle reference characteristic which is closest to the vehicle characteristic information, and finding out a closest ray transmission reference image on the basis of a corresponding relationship between the vehicle reference characteristics and ray transmission reference images stored in the storage unit; determining a first distinguishing area of the ray scanning inspection image from the closest ray transmission reference image by comparing the ray scanning inspection image of the inspected vehicle to the closest ray transmission reference image. A vehicle inspection system is also disclosed.

Abstract: A system attenuates scatter radiation during a radiological procedure. The radiological procedure using a radiation machine including an emitter, a receiver, a base, and a table for a patient. The base is supported by a floor. The system includes a barrier formed of a radiation attenuation material and positioned over an area on the floor. The barrier is comprised of an elastomeric material and disposed beneath the table. The barrier on the floor can reduce substantial amounts of scatter radiation.

Abstract: The present invention relates to a radiation protection arrangement, in particular for attachment to a support rail, which is attached to a side of a treatment table, comprising: a holder on which a radiation protection drape is arranged, wherein the holder is attachable to the support rail and comprises a fastening means with which the holder can be fastened to the support rail. The fastening means is formed on a side of the holder and comprises at least one first bracket part and at least one second bracket part. The first and the second bracket parts each have an L-shaped profile with a first leg and a second leg, wherein the first and the second bracket parts are arranged such that the first legs are aligned in parallel and the second legs face each other. The first bracket part is arranged at an upper edge of the holder and the second bracket part is arranged at the lower edge of the holder.

Abstract: A vehicle (2) comprising a vehicle part (4), the vehicle part (4) comprising: an electrically conductive core (6); a non-electrically conductive outer skin (8) made of a radar-absorbent material which surrounds, at least to some extent, the core (6) such that the core (6) is not visible from outside the vehicle (2); and one or more electrically conductive members (10) electrically connected to the core (6); each of the one or more members (10) is a tapered member having a relatively large cross sectional area where that member (10) is electrically connected to the core (6), and tapers from its end that is connected to the core (6) to a point; and the point of each member (10) is located at an outer surface of the external skin (8) such that the point of each of the members (10) is exposed.

Abstract: Systems and methods for providing a radiopaque shield affixed to a medical device hangar. Such systems and methods reduce radiation exposure to circulating medical staff during fluoroscopy procedures and reduce equipment clutter and cost.

Abstract: A portable XRF analyzer includes a hand shield to substantially block x-rays from impinging on a hand of a user. The portable XRF analyzer includes a heat sink over an x-ray source and a heat sink over an x-ray detector. The heat sinks are separated from each other by a thermally insulative material.