Abstract: A scan head design uses 1:1 (one-to-one) imaging micro-lens arrays to transfer the object plane X-ray image from a CR-plate onto a linear photosensor. The scan-head includes a housing having therein, an array of red light emitting diodes (LEDs), a microlens array, and a sensor. The housing faces the CR-plate and the scan-head is translated across the CR-plate to read out the X-ray image therein. The scan head is compact and provides for improved spatial resolution and reduced power requirements.

Abstract: The present invention provides a system that can enable measurement of prompt and delayed radiation doses. Some embodiments provide a high dynamic range in dose and dose rate. Some embodiments can determine the direction of greatest dose and direction of lower radiation dose and dose rate. Embodiments include variations as well for individual and small group survival enhancement such as directional systems, packaging to meet harsh environmental conditions and nuclear survivability, low power, large-area dose and dose rate, rate mapping, data storage and exfiltration.

Abstract: A wearable UV sensor includes a UV pass filter; a UV phosphor material; and a visible light sensing device, wherein the UV sensor is configured to receive light including visible light and UV light, wherein the UV pass filter directs the UV light to the UV phosphor material and the UV phosphor material fluoresces visible light in proportion to the UV light from the UV pass filter, and the visible light sensing device measures the visible light fluorescing from the UV phosphor material to determine the amount of the UV light entering the sensor, which correlates to the UV exposure of a subject wearing the UV sensor.

Abstract: A device for measuring radiation dosage is disclosed, comprising a flexible sheet, one or more detector assemblies disposed on the sheet, and detector retaining means for retaining the one or more detector assemblies on the sheet such that the one or more detector assemblies adopt the same curvature as the sheet when the sheet is deformed. Each one or more detector assembly comprises a plurality of beads threaded onto a fibre, the plurality of beads comprising radiation-sensitive material for recording information about a radiation dosage to which each bead is exposed, and the detector retaining means is configured to permit each one or more detector assembly to be subsequently detached from the sheet without removing the plurality of beads from the fibre. A method of detecting radiation dosage using the device is also disclosed.

Abstract: A flexible antenna for a wireless X-ray dosimeter chip is described. The flexible antenna includes a dipole antenna associated with an artificial magnetic conductor, wherein the artificial magnetic conductor includes: a top layer configured to partially act as a reflective surface; a bottom conductive ground plane layer configured to prevent propagation of incident electromagnetic waves and to reflect the electromagnetic waves; and a middle layer including a foam material configured to provide an appropriate phase delay between incident electromagnetic waves from the top layer and the reflected waves from the ground plane layer.

Abstract: Compositions including additive manufacturing materials incorporating radiological detection materials therein are provided. Also provided are apparatus and methods, which may be utilized to monitor and measure nuclear criticality events, and determine if personnel have been exposed to ionizing radiation. The compositions, apparatus, and methods beneficially improve accuracy in assessing radiation exposure, particularly neutron exposure, and reduce degradation of the radiological detection materials.

Abstract: An embodiment of a dosimeter apparatus is described that comprises a first radiation sensor configured to measure high energy photons from a radiation field; a second radiation sensor configured to measure accumulated photons from the radiation field over a time interval; an interface; and a processor comprising executable code stored thereon, wherein the executable code: computes a high dose value for the high energy photons measured by the first radiation sensor; computes an event dose value of the photons accumulated over the time interval; determines a total dose value for the time interval that comprises the greater of the high dose value or the event dose value; and communicates the total dose value for the time interval to a user via the interface.

Abstract: A chromatic confocal measuring device for the measurement of distances and/or thicknesses of several locations has a light source that emits polychromatic measuring light through a light exit surface. The light source is a laser pumped luminophore-based light source and has an oblong exit surface. The measuring device further has at least one first confocal aperture through which the measuring light passes and which comprises a plurality of punctiform orifices or at least one slit-shaped orifice. The measuring device also includes imaging optics configured to cause a chromatic focus shift of the measuring light and to image the first confocal aperture in a measurement volume so that different wavelengths are focused at different heights.

Abstract: Techniques and systems for two scanners to inspect objects based on an initial scanning of all objects and an additional scanning of objects that are determined by the initial scanning to potentially include one or more suspect regions. In one implementation, a system can include a primary scanner for performing the initial or primary scanning and a smaller secondary scanner for the additional or secondary scanning to provide efficient and accurate inspection of objects while maintaining a desired throughput of the inspection. In another implementation, a single scanner can be used to perform both the initial scanning and the additional scanning while maintaining a sufficient throughput of a line of objects under inspection.

Abstract: An embedded optical fiber radiation dose detector, includes: a first optical fiber probe, wherein a first end of the first optical fiber probe is connected to a first light intensity detector, and a second end of the first optical fiber probe is a detecting end, wherein a first fluorescent material is embedded in a terminal of the detecting end of the first optical fiber probe. Advantages are as follows: the optical fiber probes of the present invention have an embedded structure, wherein an optical fiber probe, whose core is hollow inside, is produced with a micro processing technology, and the fluorescent material is embedded therein, so as to significantly improve an efficiency of coupling radiation-generated fluorescent signals into the cores of the optical fibers, and significantly decreases a size of an optical fiber sensor.

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 a method and system that facilitates triage of thousands to millions of potential patients within a relatively short period of time by scanning of a substrate of a designated card issued to a victim. The method and the system comprise a plurality of noninvasive self-testing test devices located at a plurality of remote peripheral self-testing sites, and each one of the plurality of noninvasive self-testing test devices facilitates self-testing of the substrate of the designated card. Each of the plurality of noninvasive self-testing test devices provides test results of the scan of the substrate of the designated card, and the potential patients are identified, then subsequently screened and triaged based upon the test results of the scan of the substrate of the designated card.

Abstract: Provided is a measurement unit and measurement method for reducing attenuation due to optical fiber length and SN degradation due to background in a dosage rate monitor that uses optical fiber. This system comprises: a radiation detector for detecting radiation dosage; a light source for irradiating stimulating light on the radiation detector; a photodetector for detecting light generated by the radiation detector; an optical fiber for connecting the photodetector and the radiation detector and light source, and transmitting light from the light source and light from the radiation detector; a measurement unit for counting the pulses outputted from the photodetector; and an analysis unit for extracting the luminous energy originating from the radiation detector, from time information, wave height information, and the count value, which are measurement results obtained by the measurement unit, and converting the luminous energy to a dosage and dosage rate.

Abstract: Described is a method and system that facilitates triage of thousands to millions of potential patients within a relatively short period of time by scanning of a substrate of a designated card issued to a victim. The method and the system comprise a plurality of noninvasive self-testing test devices located at a plurality of remote peripheral self-testing sites, and each one of the plurality of noninvasive self-testing test devices facilitates self-testing of the substrate of the designated card. Each of the plurality of noninvasive self-testing test devices provides test results of the scan of the substrate of the designated card, and the potential patients are identified, then subsequently screened and triaged based upon the test results of the scan of the substrate of the designated card.

Abstract: Techniques for fast and accurate measuring test strip intensities are disclosed herein. A method for measuring a test strip intensity comprising steps of obtaining an image of a sample line in a test strip and a plurality of reference lines, wherein the reference lines have known intensities; determining grayscale values of the sample line and the reference lines from the image; constructing a standard curve based on the grayscale values versus the known intensities of the reference lines; and determining the intensity of the sample line by fitting the grayscale value of the sample line on the standard curve.

Abstract: A method is disclosed for determining an illumination beam dose in surgical field illumination. Said method comprises the following steps: at least one actual illumination-relevant value is sensed; and an illumination beam dose is calculated from said sensed actual value. Sensing of the actual illumination-relevant value includes sensing of a value of at least one adjustable parameter of an illumination device. Furthermore, simulated dose characteristics associated with the adjustable parameter are selected, at least one simulated dose value is calculated taking into account the value of the adjustable parameter and the associated simulated dose characteristics, and the illumination beam dose is calculated taking into account the at least one simulated dose value. Also disclosed are an apparatus, a computer program product, and a surgical microscope for carrying out said method.

Abstract: A method of measuring luminescence of a material is disclosed. The method includes applying a light source to excite an exposed material. The method also includes amplifying an emission signal of the material. The method further includes measuring a luminescent emission at a fixed time window of about 10 picoseconds to about 10 nanoseconds. The luminescence may be radio photoluminescence (RPL) or optically stimulated luminescence (OSL).

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: A simple method of making robust radiation sensor cables using a special fiber cap that holds a scintillating fiber therein directly abutting an end of a fiber optic cable, thus providing a clean and protected connection therebetween.

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

Abstract: A duplex plastic optical fiber may be used to create a dual detector system, which allows for the detection of two distinct areas of radiation in a single sensor cable device. A fiber cap holds a scintillating fiber and slides over an exposed portion of an optical fiber adjacent to an end of the optical fiber to create a concentric connection for a radiation sensor cable used in medical radiation therapy.

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

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

Abstract: The mobile radio unit (phone, smartphone) comprises body 16 with an incorporated processor 1. The processor 1 is connected with memory 2, display 3, audible alarm aids 4, keyboard 5, power unit 6, navigator 9, and transceiver 15. The radio unit is equipped with radiation detector 8, electronic amplifier 7 and interface 10 connected to the processor 1. The detector 8 provides measuring alpha-, beta-, gamma- and neutron emissions and solar radiation levels. The processor 1 is provided with software, which ensures both communication functions and control, warning of exposure levels, measuring background radiation, building diagrams illustrating state of human organs. The keyboard 5 comprises keys for dosimeter and/or radiometer mode control. The detector 8, the interface 10 and the amplifier 7 can be placed in the mobile unit body 16 or in separate detachable unit. Thus, there was constructed an efficient mobile unit, which ensures an extended functionality.

Abstract: Radiation dosimeters containing thin KCl:Eu2+ storage phosphors for quantifying and/or verifying the dose of radiation applied during radiation therapy. Methods for measuring the amount of radiation applied from a source of radiation and methods for treating a patient having a cancerous tumor are also provided.

Abstract: 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.

Abstract: Described is an optical system for a dosimeter reader having reduced sensitivity to vibration and motion.

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 radiation dosimetry method and associated devices for carrying out the method are disclosed herein. More particularly, a method and associated apparatus which compensates for variations in amounts of a radiation sensitive material in a radiation dosimetry film is provided.

Abstract: 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.

Abstract: 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.

Abstract: A portable dosimeter reader device includes an optically stimulated luminescence (OSL) reader for reading one or more OSL sensors of a dosimeter sled; a sled slider that is driven by a sled slider motor to position in turn each of the one or more OSL sensors of the dosimeter sled at a reading position where the OSL reader reads each respective OSL sensor; a display for displaying information relating to reading the one or more OSL sensors; and a battery compartment for one or more batteries, wherein the OSL reader includes an LED light source, wherein the battery compartment is electrically connected to the OSL reader, the sled slider motor and the display, and wherein the one or more batteries provide all of the power required for operating the OSL reader, the sled slider motor and the display.

Abstract: Described is a portable dosimeter reader that is small in size and light in weight comprising an optically stimulated luminescence (OSL) reader for reading one or more OSL sensors of a dosimeter sled. The portable dosimeter may also include a sled slider that is driven by an engine to position in turn each of the one or more OSL sensors of the dosimeter sled at a reading position where the OSL reader reads each respective OSL sensor. A display may be provided for displaying information relating to reading the one or more OSL sensors. The portable dosimeter may also include a battery compartment for one or more batteries and a case enclosing the device.

Abstract: This invention provides phosphor-doped fluoroperovskite compounds that are capable of storing at least part of the energy of incident ionizing radiation and releasing at least part of the stored energy upon optical stimulation or heating. Also provided are dosimeters and radiation storage devices comprising the compounds, methods of preparing the compounds, and methods of using the compounds to determine a dose of ionizing radiation or to record and reproduce an ionizing radiation image.

Abstract: An optical measurement system including: a probe including a plurality of light-receiving fibers and an irradiation fiber; a calibration member including a frame member and a fluorescent body provided in an inner side of the frame member to emit fluorescent light using excitation light, the calibration member being used while the fluorescent body surface faces a leading end of the probe; a fluorescence excitation light source that supplies excitation light to the irradiation fiber; a measurement unit that measures each light output from a plurality of the light-receiving fibers; and a calibration processing unit that calibrates the received light intensity between a plurality of the light-receiving fibers based on the measurement result obtained in the measurement unit by measuring light output from a plurality of the light-receiving fibers for fluorescent light from the fluorescent body emitted by irradiation with the excitation light.

Abstract: Described is a portable dosimeter reader device that is small in size and light in weight. The device comprises an optically stimulated luminescence (OSL) reader for reading one or more OSL sensors of a dosimeter and a dosimeter drawer slidably mounted in the device. The device further comprises an elevator carriage comprising a barrel with a barrel groove on an exterior side thereof, a loop retainer elevator including a tongue on an interior side thereof that travels in the barrel groove, a pinion gear mounted on the barrel, and a rack with rack teeth that engage pinion teeth of the pinion gear.

Abstract: A radiation dosimeter including one or more optically stimulated luminescence (OSL) sensors.

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

Abstract: Described is a slidable dosimeter sled for a radiation dosimeter.

Abstract: A dosimeter for radiation fields is described. The dosimeter includes a scintillator a light pipe having a first end in optical communication with the scintillator and a light detector. The light pipe may have a hollow core with a light reflective material about the periphery of the hollow core. The dosimeter may further include a light source that generates light for use as a calibrating signal for a measurement signal and/or for use to check the light pipe.

Abstract: A method of and a system for tracking radioactive sources includes at least one RFID tag attached to a radioactive source shield, the shield receiving a radioactive source at a base location, and a TRX-Gamma box for detecting identification information from the RFID tag and sensing a first gamma radiation count from the radioactive source shield. The identification information and the first gamma radiation count are stored and the shield with the radioactive source is transported to a job location where the radioactive source is removed from the shield. At the job location, a check is made that the radioactive source has been returned to the shield by comparing any newly detected identification information with the stored identification information, and by comparing a sensed second gamma radiation count with the first gamma radiation count.

Abstract: A radiation detection device with at least one self indicating radiation sensor and at least one machine readable sensor.

Abstract: Described is an optically stimulated luminescence (OSL) sensor comprising one or more cylindrical cup-shaped filters.

Abstract: Described is an optically stimulated luminescence (OSL) sensor comprising one or more cylindrical cup-shaped filters.

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: Described is a self-indicating instant radiation dosimeter (1001) for monitoring high energy radiations, such as X-ray. The dosimeter contains a radiation sensitive, color changing, indicating composition (10), e.g., a diacetylene (R—C?C—C?C—R?, where R and R? are substituents groups) or a radiochromic dye, a polymeric binder (20) and optionally a shelf life extender (50) or an activator (40). The radiation sensitive composition (10) changes color instantly when exposed to high energy radiation. The dose is estimated by comparing the color with a color reference chart or more accurately with a spectrophotometer or an optical densitometer. The radiation sensitive composition (10) is protected from low energy radiation such as UV light, by a layer of low energy absorbing materials, such as UV absorbers.

Abstract: An apparatus, system and method for verifying the achievement of a desired sterility assurance level (SAL) for components manipulated within a low-energy electron beam sterilization chamber. The components are preferably pre-sterilized and connected together in an assembly fashion which creates and maintains the sterility of the connection by subjecting the components to low-energy (less than 300 KeV) electron beam radiation. The verification is completed by measuring the sterilization dose delivered to a sensor, also known as a dosimeter, positioned within the sterilization process to simulate the components.

Abstract: Provided is a holder device for analyzing characteristics of a dosimeter. In the holder device, the dosimeter is located in a desired direction on a radiation path along which radiation is irradiated from a radiation emitter, and a radiation absorbance characteristic is recognized according to a radiation dose absorbed by the dosimeter. The holder device includes: a dosimeter holder fixedly supporting the dosimeter; a body having a partial spherical portion with a specific curvature, and having a plurality of mounting holes containing the dosimeter holder; and a supporter supporting the body so that the dosimeter is located on the radiation path. Accordingly, in the holder device for analyzing characteristics of a dosimeter, one or more dosimeters can be disposed at a desired angle and position with respect to a radiation emitter, characteristics of the dosimeter can be accurately analyzed, and thus radiation treatment and treatment schedule can be effectively performed.

Abstract: Described is an optically stimulated luminescence (OSL) sensor comprising one or more cylindrical cup-shaped filters.

Abstract: Described is a radiation dosimeter including one or more optically stimulated luminescence (OSL) sensors.