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| Number | Title | Issue Date |
| 6954512 | Neutron spectrometer with aluminum proton absorber A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorber, with th... | 10/11/2005 |
| 6928130 | Dodecahedron neutron spectrometer with tantalum proton absorber for aircraft A neutron spectrometer for aircraft is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton abso... | 08/09/2005 |
| 6765978 | Neutron spectrometer with titanium proton absorber A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorber, with th... | 07/20/2004 |
| 6717999 | Dodecahedron neutron spectrometer with titanium proton absorber for aircraft A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorber, with th... | 04/06/2004 |
| 6714616 | Neutron spectrometer A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorber, with th... | 03/30/2004 |
| 6678343 | Neutron spectrometer with titanium proton absorber A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorb... | 01/13/2004 |
| 6654435 | Neutron spectrometer with aluminum proton absorber and titanium neutron detector chamber A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorb... | 11/25/2003 |
| 6654434 | Neutron spectrometer with tantalum proton absorber A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorb... | 11/25/2003 |
| 6625243 | Dodecahedron neutron spectrometer with aluminum proton absorber for aircraft A neutron spectrometer for aircraft is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a ... | 09/23/2003 |
| 6614867 | Dodecahedron neutron spectrometer with titanium proton absorber for spacecraft A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorb... | 09/02/2003 |
| 6594332 | Dodecahedron neutron spectrometer with aluminum proton absorber for spacecraft A neutron spectrometer for spacecraft is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as ... | 07/15/2003 |
| 6433335 | Geiger-Mueller triode for sensing the direction of incident ionizing gamma radiation A Geiger-Mueller triode directional sensor is provided to detect the direction of incident ionizing gamma radiation, comprising a housing divided into two subchambers, or GM counters, separated by a partition composed of a high Z layer of tungsten, the tu... | 08/13/2002 |
| 6349124 | Dodecahedron neutron spectrometer A neutron spectrometer is provided by a series of substrates covered by a solid-state detector stacked on an absorbing layer. As many as 12 substrates that convert neutrons to protons are covered by a layer of absorbing material, acting as a proton absorb... | 02/19/2002 |
| 6346709 | Alpha, beta, and gamma monitor for measuring concentrations of ionizing radiation emitters in ambient air or other media A low cost and simple technique for measurement of radioactive contaminants in the air, soil, or in buildings is provided. The alpha, beta gamma radiation monitor comprises a thin window and two more removable radiation windows on top of a pancake-shaped ... | 02/12/2002 |
| 6100530 | Angular time synchronized directional radiation sensor An angular time-synchronized directional radiation sensor is provided to indicate the direction, or distribution of directions, of incident gamma radiation, and consequently, to locate sources of radioactivity emitting these photons. The angular time-sync... | 08/08/2000 |
| 5703370 | Method and apparatus for measuring angular differential dose of ionizing radiation A sensor from a carbon fiber, self-reading electrometer type of dosimeter made with a radically modified ionization chamber in order to determine the angular differential dose of ionizing radiation. The chamber is flat and its size is increased so that i... | 12/30/1997 |
| 5665970 | Directional radiation detector and imager A radiation sensor and/or imager is formed by sandwiching two materials having different atomic numbers (Z) around a radiation detector, such as scintilator or Geiger-Mueller type radiation counters, or solid state radiation detectors, such as those made ... | 09/09/1997 |
| 5477050 | Radiation sensor dosimetry circuit A radiation sensor of the type that acquires a charge or voltage proportil to a dose of radiation. Upon obtaining a predetermined value to the associated voltage proportional to the dose, the voltage is caused to be discharged. A counter keeps track of t... | 12/19/1995 |
| 5120969 | Radiochromic dosimeter A radiochromic dosimeter for use as a tactical or like dosimeter for measuring absorbed ionizing, radiation dose of relatively high range. This dosimeter includes an outer barrel, a first ultraviolet light opaque, ionizing radiation transparent tube, a li... | 06/09/1992 |
| 5059803 | Rugged alpha particle counter An alpha particle counter for detecting individual alpha particles with a detection medium which is ambient air. Energetic alpha particles from radioactive decay products or other sources enter the detector volume through a durable wire screen window and ... | 10/22/1991 |
| 4893017 | Dose and dose rate sensor for the pocket radiac A radiation detector which registers the radiation absorbed during the Prt Initial Radiation (PIR) phase following the detonation of a battlefield nuclear device is disclosed. The dose and dose rate attributable to gamma rays may be measured when the dos... | 01/09/1990 |
| 4859853 | Solid state gamma ray dosimeter which measures radiation in terms of absorption in a material different from the detector material A solid state gamma ray dosimeter which measures radiation in terms of absorption in a material different from the detector material. A solid state detector, an amplifier, an analog-to-digital interface and a microprocessor are combined in circuit to corr... | 08/22/1989 |
| 4721857 | Sampling and recording dose rate meter A wide range radiation dose rate meter for civil defense use, including a iger-Mueller tube used in a continuous counting mode and for measuring dose rates from the natural background to about 30. rads/hr., with an ion chamber arranged to measure higher d... | 01/26/1988 |
| 4631414 | Radiological instrument A radiological measuring instrument including an angularly variable radiation sensitive structure comprised of two blocks of material having a different index of refraction with one of the materials comprising a radiochromic substance whose refractive ind... | 12/23/1986 |
| 4617464 | Sampling and recording dose rate meter A wide range radiation dose rate meter for civil defense use, including a iger-Mueller tube used in a continuous counting mode and for measuring dose rates from the natural background to about 30 rads/hr., with an ion chamber arranged to measure higher do... | 10/14/1986 |
| 4609520 | Protection of radiation detectors from fast neutron damage A circuit for biasing a solid state crystal used as a radiation detector in hich the passage of the initial gamma ray pulse from the explosion of a nearby tactical nuclear weapon is utilized to temporarily remove the bias from said crystal for a time suffi... | 09/02/1986 |
| 4602425 | Method of protecting a radiochromic optical waveguide dosimeter from adverse temperature effects A radiochromic optical waveguide dosimeter is protected from the adverse perature effects of exposure in the desired operational temperature range of -40° C. to +60° C. by flattening the round plastic tubing to be used for the fabrication of the dosime... | 07/29/1986 |
| 4527063 | Solid state nuclear radiation detector circuit with constant sensitivity This circuit comprises a solid state crystal radiation counter having its plified output connected in parallel to a pair of pulse height discriminators with thresholds of V1 and 2V1 volts, wherein V1 is above the counter n... | 07/02/1985 |
| 4489240 | Radiochromic leuko dye real time dosimeter, one way optical waveguide A radiochromic leuko dye dosimeter includes a plastic tube containing a solution of a radiochromic dye which is sensitive to ionizing radiation, one end of the tube being closed by a reflective surface, the opposite end of the tube being closed by a trans... | 12/18/1984 |
| 4377751 | Optical waveguide dosimeter An optical waveguide dosimeter for personnel dosimetry is provided including a liquid solution of leuko dye hermetically sealed in plastic tubing. Optical transport is improved by dipping the ends of the plastic tubing into clear epoxy, thus forming beads... | 03/22/1983 |
| 4281250 | Radiation dose rate meter A combined dose rate meter and charger unit therefor which does not require he use of batteries but on the other hand produces a charging potential by means of a piezoelectric cylinder which is struck by a manually triggered hammer mechanism. A tubular typ... | 07/28/1981 |
| 4247775 | Piezoelectric dosimeter charger Disclosed is a small portable extremely rugged charger for existing pockeized type radiation dosimeters. The charger is comprised of a rectangularly shaped housing which contains a piezoelectric charging circuit which is manually operated by a handle to ... | 01/27/1981 |
| 4019058 | Charge transport tactical dosimeter A quartz fiber electroscope shunted by a variable capacitor is periodically coupled to a radiation detection capacitor formed of material of a relatively large atomic number, e.g. aluminum, completely surrounded by a material of lesser atomic number, e.g.... | 04/19/1977 |