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| Number | Title | Issue Date |
| 8168955 | Photon event distribution sampling apparatus and method Locations of the origins of the photons are acquired from a scanned sample with reference to a scan frame. The location on the sample from which a photon was emitted is inferred from the location of the scan as commanded by a scan drive signal, a feedback signal rel... | 05/01/2012 |
| 8129692 | Method for monitoring fouling in a cooling tower Fouling in the fill portion of a cooling tower is monitored by transmitting radiation through a cooling tower, detecting the amount of radiation that has penetrated the cooling tower, and calculating the density of the fill portion of the cooling tower based on the ... | 03/06/2012 |
| 8119993 | Method for detecting contamination on a moving object A method for detecting contamination on a moving object moving in a longitudinal direction past a plurality of detectors, wherein during the movement of the object past the detectors, a count rate is recorded repeatedly at each of ... | 02/21/2012 |
| 8110812 | Method and system for detecting nitrogenous materials via gamma-resonance absorption (GRA) A method for detecting nitrogenous materials within an object by means of Gamma-Resonance Absorption (GRA), including placing on one side of an object a target containing 13C for bombardment with a proton beam of approximately 1.75 MeV energy, to produce a source of... | 02/07/2012 |
| 8058625 | Limiting viewing angles in nuclear imaging Methods of nuclear imaging can include, in a pre-scan, detecting radiation emitted from a patient in a first plurality of viewing angles including at least a first viewing angle and a second viewing angle, generating nuclear data from the detected radiation, reconst... | 11/15/2011 |
| 7973288 | Energy detector and related apparatus A method includes purposefully electromagnetically shielding a portable x-ray detector. ... | 07/05/2011 |
| 7960702 | Photon event distribution sampling apparatus and method Locations of the origins of the photons are acquired from a scanned sample with reference to a scan frame. The location on the sample from which a photon was emitted is inferred from the location of the scan as commanded by a scan drive signal, a feedback signal rel... | 06/14/2011 |
| 7947963 | Method and apparatus for measuring radioactivity A method of measuring radioactivity includes determining a fitted spectral distribution region for recorded counts data of at least a first activity peak determining characteristic data of the fitted spectral distribution region, and using the characteristic data to... | 05/24/2011 |
| 7943907 | Method and circuit arrangement for determining the radiation intensity using directly counting detector A method and a circuit arrangement are disclosed for determining radiation intensity using counting detectors or detector elements, in which x-ray radiation photons, which are either absorbed or absorbed in part, generate electrical signals, the pulse number and pul... | 05/17/2011 |
| 7902520 | Radiation detecting electronic device and methods of operating A method of operating an electronic device including determining an initial charge level at a non-volatile charge storage structure of a radiation-sensitive device including a radiation-reactive material and determining if a first radiation event has occurred based ... | 03/08/2011 |
| 7812318 | Electromagnetic biosensor A system, method, device, and process for making and using an electromagnetic-sensitive biosensor on a biosensor disk to identify and classify an analyte in a sample. The biosensor of the biosensor disk is exposed to a sample containing analytes and a desired analyt... | 10/12/2010 |
| 7728307 | Measurement and treatment of a signal comprising stacks of elementary pulses The invention relates to a method of measurement, comprising treatment of a signal consisting of a succession of temporally spaced main pulses, having a duration D and energy E, which can each consist of a stack of elementary pulses having a duration Di and whose en... | 06/01/2010 |
| 7723696 | Radiation detected value forecasting method and forecast responsive radiation detector In a radiation detector, a response is approximated as a primary delay system, and when a time constant T indicating the characteristic of the response is known, a final response value N0 is forecasted from dose rates or counting rates N1 and N... | 05/25/2010 |
| 7675041 | Method and apparatus for gamma ray detection A high sensitivity, three-dimensional gamma ray detection and imaging system is provided. The system uses the Compton double scatter technique with recoil electron tracking. The system preferably includes two detector subassemblies a silicon microstrip hodoscope and... | 03/09/2010 |
| 7564040 | Device for correcting a signal derived from a detector A device for processing a signal (i) derived from a particular detector, the device including an integrator for measuring the total charge transported by an input signal (i2) feeding the integrator for a predetermined time interval. The device further inc... | 07/21/2009 |
| 7564041 | Method of using self-positioning radiation counters A method of collecting data on radioactive material includes: positioning a detector unit at a first position relative to the environment; collecting at least a part of a first set of data from a first position using a detector unit; and collecting at least a part o... | 07/21/2009 |
| 7462837 | Nuclide identifier system In a preferred embodiment, a method of identifying nuclides, including the steps of: determining spectral continuum via a peak erosion process to render a residual peak spectrum; filtering a standard nuclide library specified by a user to select candidate nuclides; ... | 12/09/2008 |
| 7439515 | Pipeline processing of pulse pile-up correction in a nuclear medicine imaging system Correction of scintillation event data from a nuclear medicine imaging system for effects of pulse pile-up is carried out by separating event data packets into total energy and individual detector energy data packets, executing pile-up correction algorithms on each ... | 10/21/2008 |
| 7429739 | Providing information By considering ratio of emissions at one or more pairs of energies to threshold values, the invention provides for the determination of the dispersion format of a radioactive material within a matrix, wherein said radioactive material is potentially present in a dis... | 09/30/2008 |
| 7427762 | Variable multi-stage waveform detector A variable waveform detector may include multiple stages. ... | 09/23/2008 |
| 7408171 | Providing information A method for providing information on the dispersion of a radioactive material within a matrix includes measuring emissions of a first energy, the emissions including emissions of a first type, to provide a first type value; measuring emissions of a second energy, t... | 08/05/2008 |
| 7388201 | Radiation detector having coated nanostructure and method A radiation detector has an electron emitter that includes a coated nanostructure on a support. The nanostructure can include a plurality of nanoneedles. A nanoneedle is a shaft tapering from a base portion toward a tip portion. The tip portion has a diameter betwee... | 06/17/2008 |
| 7323706 | Method of associating meta-data relating to a radiation image of an object with the radiation image A first time stamp T1 indicative of the time of irradiation of an object and a second time stamp T2 indicative of the time of exposure of an image detector by the radiation image of the object, are generated. Meta-data relating to the object are associ... | 01/29/2008 |
| 7304307 | PMT signal correlation filter A method of generating a filter (40) for a nuclear medicine system (20) where the filter selects valid detected radiation events for image processing. A dataset (60) is provided that is indicative of a plurality of emitted radiation events occur... | 12/04/2007 |
| 7302353 | Method for radiation spectroscopy using seeded localized averaging (“SLA”) and channel-address recycling A method, and apparatus for carrying it out, for processing pulses derived from a radiation detector, those pulses having already been resolved by a pulse-height analyzer into channels having respective addresses indicative of their respective heights. The method in... | 11/27/2007 |
| 7268354 | Method for operation of a counting radiation detector with improved linearity A method is for operation of a counting radiation detector, in particular of a counting X-ray detector, with improved linearity, in which each detector element of the counting radiation detector supplies counting pulses at counting rates as a function of a number of... | 09/11/2007 |
| 7263167 | Direct conversion X-ray detector with over-range and pile-up correction A method of scanning a subject to be imaged is presented. The method includes acquiring projection data from a first region of a pixel, where the first region has a first area. Additionally, the method includes acquiring projection data from a second region of the p... | 08/28/2007 |
| 7262417 | Method and system for improved image reconstruction and data collection for compton cameras Systems and methods are described for image reconstruction. A set of conical integrals are calculated to satisfy a completeness condition and are related to a distribution of radioactivity. ... | 08/28/2007 |
| 7247862 | Afterglow detection and count rate generation in a nuclear imaging system The afterglow and count rate/dead time of a nuclear imaging detector are calculated for use in correcting event detection and energy integration circuits. Energy value signals and event triggering signals are respectively integrated as a function of the decay settin... | 07/24/2007 |
| 7227154 | Method for operating a flat detector with reduced switching artifacts A method is disclosed for operating a flat detector in different dose ranges and at different amplifier levels. A previously measured detector sensitivity is respectively used for the calibration. The detector sensitivity is determined for each amplifier level at a ... | 06/05/2007 |
| 7186487 | Method of controlling exposure processes by monitoring photon levels, and system for accomplishing same The present invention is generally directed to various methods of controlling exposure processes by monitoring photon levels, and various systems for accomplishing same. In one embodiment, the method comprises performing an exposure process by generating light compr... | 03/06/2007 |
| 7183550 | Method and apparatus for analogue processing of the signal emitted by a particle detector Devices and methods for processing a signal emitted by a particle detector in which the methods include detecting in the signal the portions where the signal is greater than a predetermined value V1, measuring the maximum value Vmax reached by the signal in e... | 02/27/2007 |
| 7176462 | Semiconductor device, and control method and device for driving unit component of semiconductor device A solid-state imaging device, such as a CMOS sensor, includes a unit pixel having a charge generation unit for generating signal charge, a floating diffusion for accumulating the signal charge generated by the charge generation unit, a transfer gate transistor for t... | 02/13/2007 |
| 7174272 | Method for detecting an element A method for detecting an element is disclosed and which includes the steps of providing a gamma-ray spectrum which depicts, at least in part, a test region having boundaries, and which has a small amount of the element to be detected; providing a calculation which ... | 02/06/2007 |
| 7157710 | Corona discharge detection An apparatus and process are provided for detecting whether a corona discharge has occurred external or internal to equipment in which a broadband optical spectra sensor is placed. The broadband optical spectra sensor senses both the ultraviolet energy of the corona... | 01/02/2007 |
| 7126121 | Real-time video radiation exposure monitoring system A real-time video radiation exposure monitoring system comprising a Geiger-Müeller meter and a video camera linked to a computer programmed to display video images from the camera simultaneously with data from the Geiger-Müeller meter. A radio modem provides wirel... | 10/24/2006 |
| 7118271 | Calibrating temperature sensors of weathering devices by means of contactless temperature measurement Calibrating temperature sensors of weathering devices by means of contactless temperature measurement A temperature sensor (10) which is, for example, designed as a black standard sensor and is typically used in apparatuses for artificial weathering of... | 10/10/2006 |
| 7115880 | Digital event detection in a nuclear imaging system Digital detection of the occurrence of nuclear medicine radiation interaction events in a detector utilizes a digital energy signal sample to trigger signal processing of event signals from the detector by performing mathematical operations on the energy signal samp... | 10/03/2006 |
| 7095030 | Investigations of radioactivity Apparatus and methods for measuring activity of radioactivity at a source location within an environment provided. The method in particular includes measuring emissions using an instrument as a measurement location, which instrument includes a detector, the instrume... | 08/22/2006 |
| 7078705 | Neutron and gamma detector using an ionization chamber with an integrated body and moderator A detector for detecting neutrons and gamma radiation includes a cathode that defines an interior surface and an interior volume. A conductive neutron-capturing layer is disposed on the interior surface of the cathode and a plastic housing surrounds the cathode. A p... | 07/18/2006 |
