Landauer, Inc. Patent applications |
Patent application number | Title | Published |
20150192682 | WIRELESS, MOTION AND POSITION-SENSING, INTEGRATING RADIATION SENSOR FOR OCCUPATIONAL AND ENVIRONMENTAL DOSIMETRY - Described is a radiation dosimeter including multiple sensor devices (including one or more passive integrating electronic radiation sensor, a MEMS accelerometers, a wireless transmitters and, optionally, a GPS, a thermistor, or other chemical, biological or EMF sensors) and a computer program for the simultaneous detection and wireless transmission of ionizing radiation, motion and global position for use in occupational and environmental dosimetry. The described dosimeter utilizes new processes and algorithms to create a self-contained, passive, integrating dosimeter. Furthermore, disclosed embodiments provide the use of MEMS and nanotechnology manufacturing techniques to encapsulate individual ionizing radiation sensor elements within a radiation attenuating material that provides a “filtration bubble” around the sensor element, the use of multiple attenuating materials (filters) around multiple sensor elements, and the use of a software algorithm to discriminate between different types of ionizing radiation and different radiation energy. | 07-09-2015 |
20140299783 | ENERGY HARVESTER FOR WIRELESS, MOTION AND POSITION-SENSING, INTEGRATING RADIATION SENSOR FOR OCCUPATIONAL AND ENVIRONMENTAL DOSIMETRY - An apparatus comprising: a radiation sensor having one or more radiation sensors and an on-board power harvester. | 10-09-2014 |
20140278261 | Algorithm for Wireless, Motion and Position-Sensing, Integrating Radiation Sensor Occupational and Environmental Dosimetry - Described is an apparatus, method and machine-readable medium for determining radiation dosages based on a solution vector for each radiation field and an objective function. | 09-18-2014 |
20140278140 | Algorithm for Wireless, Motion and Position-Sensing, Integrating Radiation Sensor Occupational and Environmental Dosimetry - Described is an apparatus, method and machine-readable medium for determining radiation dosages based on a solution vector for each radiation field and an objective function. | 09-18-2014 |
20140268601 | Filter Packaging for System for Wireless, Motion and Position-Sensing, Integrating Radiation Sensor for Occupational and Environmental Dosimetry - A device comprising: a printed circuit board (PCB); a sensor package mounted on a first side of the PCB; electronics mounted on a second side of the PCB; and one or more filters, wherein the sensor package comprises one or more radiation sensors mounted therein, wherein each of the one or more filters filter one or more types of radiation that enter an exposed side of each of the one or more sensors at angle of at least 60 degrees with respect to a respective axial line through respective centers of each of the one or more sensors. | 09-18-2014 |
20140264047 | Geometry Layout for System for Wireless, Motion and Position-Sensing, Integrating Radiation Sensor for Occupational and Environmental Dosimetry - A device comprising: a substrate, a sensor package mounted on the substrate, and one or more filters, wherein the sensor package comprises one or more radiation sensors mounted therein, wherein each of the one or more filters is used to attenuate one or more types of radiation that enter an exposed side of each of the one or more radiation sensors at angle of up to +/−60 degrees with respect to a respective axial line through respective centers of each of the one or more radiation sensors. | 09-18-2014 |
20140263989 | Geometry Layout and Filter Packaging for System for Wireless, Motion and Position-Sensing, Integrating Radiation Sensor for Occupational and Environmental Dosimetry - A device comprising: a substrate, four or more sensor packages mounted on the substrate, and a respective set of one or more filters for each of the four or more sensor packages, wherein each sensor package of the four or more sensor packages comprises one or more radiation sensors mounted therein, wherein each set of filters filter one or more types of radiation entering an exposed side of each of the one or more radiation sensors at angle of at least 60 degrees with respect to a respective axial line through respective centers of each of the one or more radiation sensors. | 09-18-2014 |
20140217309 | POWER SYSTEM FOR DOSIMETER READER - Described is a portable dosimeter reader that is small in size and light in weight. | 08-07-2014 |
20140209807 | METHOD AND APPARATUS FOR FAST DETERMINATION OF UNKNOWN RADIATION DOSE - Described is a method for determination of an unknown radiation dose to which an optically stimulated luminescence (OSL) sensor has been exposed utilizing a pulsed optically stimulated luminescence (POSL) technique and a battery operated portable instrument. | 07-31-2014 |
20140183378 | POWER SYSTEM FOR DOSIMETER READER - Described is a portable dosimeter reader that is small in size and light in weight. | 07-03-2014 |
20130341530 | OSL SENSOR HAVING A REFLECTIVE BACKING - An optically stimulated luminescence (OSL) sensor is provided that has a reflective backing for improving the efficiency of exposing an optically stimulated luminescence material (OSLM) of the OSL sensor to stimulation light and for increasing the efficiency of detecting luminescent light emitted by the OSLM. | 12-26-2013 |
20130341515 | OPTICAL SYSTEM FOR PORTABLE OSL READER - An optically stimulated luminescence (OSL) reader having an optical engine with a removably mounted dichroic mirror is provided. | 12-26-2013 |
20130341514 | METHOD AND APPARATUS FOR FAST DETERMINATION OF UNKNOWN RADIATION DOSE - Described is a method for determination of an unknown radiation dose to which an optically stimulated luminescence (OSL) sensor has been exposed utilizing a pulsed optically stimulated luminescence (POSL) technique and a battery operated portable instrument. | 12-26-2013 |
20130325357 | SYSTEM AND METHOD FOR WIRELESS, MOTION AND POSITION-SENSING, INTEGRATING RADIATION SENSOR FOR OCCUPATIONAL AND ENVIRONMENTAL DOSIMETRY - Described is a radiation dose calculation algorithm based upon the output of a radiation dosimeter including multiple sensor devices (including one or more passive integrating radiation sensors and optionally, a MEMS accelerometers, a wireless transmitters a GPS, a thermistor, or other chemical, biological or EMF sensors). The algorithm is used to convert the sensor output into dose values used to assess the exposure of personnel to ionizing radiation. Sensor output patterns are matched to stored empirically generated sensor outputs thru weighting and optimization calculation processes to determine personnel doses. Algorithm outputs can include personal dose equivalents, radiation types, radiation energy and radiation source identification. Dose calculations can be optimized for specific applications, and matched to different sets of measured data without changing the underlining software calculation programs. | 12-05-2013 |
20130320239 | PORTABLE READER FOR A DOSIMETER - Described is a dosimeter reader for reading a plurality of optically stimulated luminescence (OSL) sensors of a dosimeter sled and for reading an RFID tag on the dosimeter sled. | 12-05-2013 |
20130320212 | WIRELESS, MOTION AND POSITION-SENSING, INTEGRATING RADIATION SENSOR FOR OCCUPATIONAL AND ENVIRONMENTAL DOSIMETRY - Described is a radiation dosimeter including multiple sensor devices (including one or more passive integrating electronic radiation sensor, a MEMS accelerometers, a wireless transmitters and, optionally, a GPS, a thermistor, or other chemical, biological or EMF sensors) and a computer program for the simultaneous detection and wireless transmission of ionizing radiation, motion and global position for use in occupational and environmental dosimetry. The described dosimeter utilizes new processes and algorithms to create a self-contained, passive, integrating dosimeter. Furthermore, disclosed embodiments provide the use of MEMS and nanotechnology manufacturing techniques to encapsulate individual ionizing radiation sensor elements within a radiation attenuating material that provides a “filtration bubble” around the sensor element, the use of multiple attenuating materials (filters) around multiple sensor elements, and the use of a software algorithm to discriminate between different types of ionizing radiation and different radiation energy. | 12-05-2013 |
20130234185 | DOPED SAPPHIRE AS SUBSTRATE AND LIGHT CONVERTER FOR LIGHT EMITTING DIODE - Described is a material composition comprising a crystalline sapphire material doped with two or more dopants, wherein when a primary radiation comprising blue light is propagated through the crystalline material at least a portion of the primary radiation is converted into a first secondary radiation and a second secondary radiation that is emitted from the crystalline material, wherein the first secondary radiation comprises green light and the second secondary radiation comprises red light, and wherein the primary radiation, first secondary radiation and second secondary radiation when combined produce white light. Also described are LED devices employing the material composition as a light transmissive substrate. | 09-12-2013 |
20130200278 | POWER SYSTEM FOR DOSIMETER READER - Described is a portable dosimeter reader that is small in size and light in weight. | 08-08-2013 |
20130193348 | POWER SYSTEM FOR DOSIMETER READER - Described is a portable dosimeter reader that is small in size and light in weight. | 08-01-2013 |
20120211672 | NOVEL FILTERS FOR USE IN DOSIMETRY - Described is an optically stimulated luminescence (OSL) sensor comprising one or more cylindrical cup-shaped filters. | 08-23-2012 |
20120145927 | NOVEL FILTERS FOR USE IN DOSIMETRY - Described is an optically stimulated luminescence (OSL) sensor comprising one or more cylindrical cup-shaped filters. | 06-14-2012 |
20120118980 | DOSIMETER WITH RFID TAG - Described is device comprising dosimeter for measuring one or more doses of radiation; and an RFID tag comprising an antenna for communicating with an RFID tag reader and non-volatile memory for storing data therein. | 05-17-2012 |
20120061591 | PORTABLE DOSIMETER - Described is a portable dosimeter that includes a piece of optically stimulated luminescence material (OSLM) mounted in a dosimeter mount that is rotatably mounted in a cylindrical recess of a dosimeter housing. | 03-15-2012 |
20120018652 | POWER SYSTEM FOR DOSIMETER READER - Described is a portable dosimeter reader that is small in size and light in weight. | 01-26-2012 |
20110169616 | DATA STORAGE MECHANISM & COMMUNICATION MECHANISM FOR PORTABLE DOSIMETER - Described is a device comprising a dosimeter reader including an RFID tag reader for retrieving and/or updating all or a portion of the data stored in the non-volatile memory of an RFID tag on a dosimeter sled that is part of a radiation dosimeter. Also described is a method retrieving and/or updating the data stored in the non-volatile memory of the RFID tag. | 07-14-2011 |
20110168922 | PORTABLE DOSIMETER - Described is a radiation dosimeter including one or more optically stimulated luminescence (OSL) sensors. | 07-14-2011 |
20110168920 | NOVEL FILTERS FOR USE IN DOSIMETRY - Described is an optically stimulated luminescence (OSL) sensor comprising one or more cylindrical cup-shaped filters. | 07-14-2011 |
20110168919 | DOSIMETER SLED - Described is a slidable dosimeter sled for a radiation dosimeter. | 07-14-2011 |
20110168912 | OPTICAL SYSTEM FOR DOSIMETER READER - Described is an optical system for a dosimeter reader having reduced sensitivity to vibration and motion. | 07-14-2011 |
20110168902 | DOSIMETER WITH RFID TAG - Described is device comprising dosimeter for measuring one or more doses of radiation; and an RFID tag comprising an antenna for communicating with an RFID tag reader and non-volatile memory for storing data therein. | 07-14-2011 |
20110168783 | NOVEL RFID TAG FOR USE IN DOSIMETRY - Described is a dosimeter sled comprising: one or more optically stimulated luminescence (OSL) sensors mounted in the dosimeter sled and an RFID tag comprising an antenna for communicating with an RFID tag reader and a non-volatile memory for storing data therein. | 07-14-2011 |
20110168772 | READING MECHANISM FOR DOSIMETER - Described is a method comprising the following steps: (a) moving a selected optically stimulated luminescence (OSL) sensor of two or OSL sensors mounted on a dosimeter sled to a reading position for an OSL reader; (b) reading the selected OSL sensor at the reading position using the OSL reader to measure a radiation dosage to which a dosimeter in which the dosimeter sled has been mounted has been exposed; and (c) repeating steps (a) and (b) for each of the two or more OSL sensors, wherein each OSL sensor comprises an optically stimulated luminescent material (OSLM) mounted in one or more cylindrical cup-shaped energy compensating filters, and wherein the dosimeter sled is part of a dosimeter. | 07-14-2011 |
20110031413 | METHOD OF LUMINESCENT SOLID STATE DOSIMETRY OF MIXED RADIATIONS - A method of determining the doses of neutrons, gamma and X-ray photons, beta, alpha and other ionizing radiations using a method of image processing in spatial and frequency domain that produces parameters that are related to the radiation dose absorbed in a luminescent material. Portions of the luminescent material may be covered by different converters to allow for doses of different radiations to be discriminated. | 02-10-2011 |
20110031412 | METHOD OF LUMINESCENT SOLID STATE DOSIMETRY OF MIXED RADIATIONS - A method of determining the doses of neutrons, gamma and X-ray photons, beta, alpha and other ionizing radiations using a method of image processing in spatial and frequency domain that produces parameters that are related to the radiation dose absorbed in a luminescent material. Portions of the luminescent material may be covered by different converters to allow for doses of different radiations to be discriminated. | 02-10-2011 |
20100102249 | METHOD OF LUMINESCENT SOLID STATE DOSIMETRY OF MIXED RADIATIONS - A method of determining the doses of neutrons, gamma and X-ray photons, beta, alpha and other ionizing radiations using a method of image processing in spatial and frequency domain that produces parameters that are related to the radiation dose absorbed in a luminescent material. Portions of the luminescent material may be covered by different converters to allow for doses of different radiations to be discriminated. | 04-29-2010 |