Abstract: A portable and wearable radiation dosimeter has a wearable housing. There is an optically stimulated luminescent (OSL) radiation sensing element removably mounted in the wearable housing so that the OSL radiation sensing element can be removed and read by an external OSL reader. There is also a fluorescent nuclear track detector (FNTD) radiation sensing element removably mounted in the wearable housing so that the FNTD radiation sensing element can be removed and read by an external FNTD reader. At least one on-board reader for at least one of the OSL and FNTD radiation sensing element for determining information about the radiation exposure of the sensing element while the sensor remains mounted in the housing, preferably using a different mode of reading than either OSL or FNTD.

Abstract: 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.

Abstract: Described are a method and apparatus for determining based on motion data when an individual wearing a dosimeter is active. Also described are a method and apparatus for determining based on motion data whether an individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data whether a dosimeter was in a particular location when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data where on the body of an individual the individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data the probability that an individual is wearing a dosimeter that is assigned to the individual.

Abstract: 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.

Abstract: 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.

Abstract: A device comprising an optically stimulated luminescence (OSL) reader having an optical engine with a light source, collection lens, a removably mounted dichroic mirror, and a photodetector.

Abstract: Described are a method and apparatus for determining based on motion data when an individual wearing a dosimeter is active. Also described are a method and apparatus for determining based on motion data whether an individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data whether a dosimeter was in a particular location when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data where on the body of an individual the individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data the probability that an individual is wearing a dosimeter that is assigned to the individual.

Abstract: An apparatus comprising: a radiation sensor having one or more radiation sensors and an on-board power harvester.

Abstract: 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.

Abstract: 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.

Abstract: Described are a method and apparatus for determining based on motion data when an individual wearing a dosimeter is active. Also described are a method and apparatus for determining based on motion data whether an individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data whether a dosimeter was in a particular location when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data where on the body of an individual the individual was wearing a dosimeter when the dosimeter was exposed to radiation. Also described are a method and apparatus for determining based on motion data the probability that an individual is wearing a dosimeter that is assigned to the individual.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method comprising the following steps: (a) adjusting a radiation dose measurement for a fluorescent nuclear track detector based on a plurality of fluorescence contrast images for the fluorescent nuclear track detector to thereby produce a calibrated radiation dose measurement, and (b) displaying the calibrated radiation dose measurement to a user and/or saving the calibrated radiation dose measurement to a storage medium, wherein the fluorescent nuclear track detector comprises a luminescent material, wherein the radiation dose measurement is based on one or more fluorescent light measurements produced by fluorescent imaging of the fluorescent nuclear track detector using excitation light from a laser having a first wavelength, and wherein the plurality of fluorescence contrast images are produced by illuminating the fluorescent nuclear track detector with excitation light having a second wavelength.

Abstract: Described is a portable dosimeter reader that is small in size and light in weight.

Abstract: 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.

Abstract: An apparatus comprising: a radiation sensor having one or more radiation sensors and an on-board power harvester.

Abstract: 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.

Abstract: 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.