Abstract: An apparatus includes a radio frequency (“RF”) translational joint. The RF translational joint includes a first coaxial line. The RF translational joint includes a first constant impedance coaxial transition connected to the first initial coaxial line. The RF translational joint includes a coax-to-stripline transition. The RF translational joint includes a stripline section connected to the first constant impedance coaxial transition via the coax-to-stripline transition. The RF translational joint includes a stripline-to-coax transition. The RF translational joint includes a second constant impedance coaxial transition connected to the stripline section via the stripline-to-coax transition. The RF translation joint includes a second coaxial line connected to the second constant impedance coaxial transition.

Abstract: An apparatus includes a radio frequency (“RF”) translational joint. The RF translational joint includes a first coaxial line. The RF translational joint includes a first constant impedance coaxial transition connected to the first initial coaxial line. The RF translational joint includes a coax-to-stripline transition. The RF translational joint includes a stripline section connected to the first constant impedance coaxial transition via the coax-to-stripline transition. The RF translational joint includes a stripline-to-coax transition. The RF translational joint includes a second constant impedance coaxial transition connected to the stripline section via the stripline-to-coax transition. The RF translation joint includes a second coaxial line connected to the second constant impedance coaxial transition.

Abstract: Embodiments relate to a hallow cathode with integral layers of radiation shielding. The hollow cathode includes an inner cathode tube that forms a gas feed to direct gas toward a downstream end, where the directed gas forms plasma. A heater element is positioned at the downstream end of the inner cathode tube, the heater element to heat the plasma. The hollow cathode further includes an outer cathode tube with a keeper electrode to sustain a bias voltage across a gap at a downstream end of the outer cathode tube for igniting the plasma. The integral layers of radiation shielding are connected by offset radial supports and are incorporated as a single element with either the inner or outer cathode tube, where the integral layers are nested with torturous conductive paths to reduce radiation and conduction losses from the downstream end of the inner cathode tube.

Abstract: Embodiments relate to a hallow cathode with integral layers of radiation shielding. The hollow cathode includes an inner cathode tube that forms a gas feed to direct gas toward a downstream end, where the directed gas forms plasma. A heater element is positioned at the downstream end of the inner cathode tube, the heater element to heat the plasma. The hollow cathode further includes an outer cathode tube with a keeper electrode to sustain a bias voltage across a gap at a downstream end of the outer cathode tube for igniting the plasma. The integral layers of radiation shielding are connected by offset radial supports and are incorporated as a single element with either the inner or outer cathode tube, where the integral layers are nested with torturous conductive paths to reduce radiation and conduction losses from the downstream end of the inner cathode tube.

Abstract: An evacuation assistance locator, which includes a processor communicative with a memory device contained with a housing, is detachably mounted to a fixed structure, such as an office building, for receiving location information from non-ambulatory individuals to assist emergency personnel in quickly finding the non-ambulatory individuals location in the event of an emergency. The housing also includes a display screen and an input keypad so that the non-ambulatory individual can input their location and departure time information and so that only authorized emergency personnel can retrieve the location information by using a secret access code. A plurality of evacuation assistance locations can be linked to a central office for access by the appropriate personnel.

Abstract: A permanent pool seal and neutron shield 30 for providing an effective water barrier over the annular space 28 between a nuclear reactor vessel flange 24 and a surrounding annular ledge 22 includes annular deck sections 32 supported on spaced ribs 46.Flexible membranes 50,52 on the deck section peripheries accommodate relative movement. Openings 42, each with a removable plug structure which includes cover 44 and tapered can 60, provide vessel cavity 14 with ventilation and maintenance access. All cans 60 and similar containers 56 and 59 under the deck structure and flange 24 contain a shielding material 58 in the form of a boron-containing concrete. Supported below the cans is refractory insulating material 54.

Abstract: A low vulnerability booster charge comprising single, fairly large crystals f 1,3,5,7-tetramethylenetetranitramine (HMX) or 1,3,5,-trimethylenetrinitramine (RDX) about 160 microns diameter coated with a polyurethane cement which comprises about 15 weight percent of the entire booster charge.