Abstract: A semiconductor radiation sensor (100), comprising a substrate (102), a carrier material (104) mounted to the substrate (102), and a semiconductor detector (106) mounted to the carrier material (104). A radiation sensitive portion of the semiconductor detector (106) is oriented towards the carrier material (104) and generally away from the substrate (102), and the carrier material is adapted to transmit radiation to the radiation sensitive portion of the semiconductor detector (106). A dosimeter comprising the radiation sensor (100) and a method of manufacturing the radiation sensor (100) are also provided.

Abstract: A microdosimeter, comprising an array of three-dimensional p-n junction semiconductor detectors, each providing a sensitive volume-target and a tissue equivalent medium for generating secondary charged particles. The array is manufactured from a semiconductor on insulator wafer and the detectors are located to detect secondary charged particles generated in the tissue equivalent medium.

Abstract: A probe (14; 14?), comprising an ultrasonic probe (56a,56b; 74a,74b) and a pixellated radiation detector (16) with discrete detecting elements (50a,50b,50c) for detecting a predefined radiation. The probe (14) is adapted to be located at least partially within a body cavity. Also, an imaging method, comprising employing such a probe (14) to form an image while located within a body cavity, and a dosimetry method, comprising employing such a probe (14) to conduct dosimetry while located within a body cavity.

Abstract: A radiation detection apparatus and method, the apparatus (100) comprising a first scintillator (112) for interacting with radiation and outputting light in response thereto, a first photodetector (102) adjacent to the first scintillator (112) for receiving and detecting light from the first scintillator (112) and outputting (108) a first output signal in response thereto, a second scintillator (114) located around the first scintillator (112), for interacting with radiation and outputting light in response thereto, and a second photodetector (104) adjacent to the second scintillator (114) for receiving and detecting light from the second scintillator (114) and outputting (110) a second output signal in response thereto.

Abstract: A method of determining the dose rate of a radiation source includes locating three or more detectors in the vicinity of the source. Each detector provides an output indicative of the amount of radiation received from the source and determining the location of the source from at least three of the detector outputs, wherein as many of the detector outputs is required to provide an acceptably accurate result are used in determining the location. Thus, the dose of radiation from the source can be determined from the determined location of the source and either a known activity of the source or a measure of the activity of the source determined by means of the detectors.

Abstract: A semiconductor radiation sensor (100), comprising a substrate (102), a carrier material (104) mounted to the substrate (102), and a semiconductor detector (106) mounted to the carrier material (104). A radiation sensitive portion of the semiconductor detector (106) is oriented towards the carrier material (104) and generally away from the substrate (102), and the carrier material is adapted to transmit radiation to the radiation sensitive portion of the semiconductor detector (106). A dosimeter comprising the radiation sensor (100) and a method of manufacturing the radiation sensor (100) are also provided.

Abstract: A microdosimeter, comprising an array of three-dimensional p-n junction semiconductor detectors, each providing a sensitive volume-target and a tissue equivalent medium for generating secondary charged particles. The array is manufactured from a semiconductor on insulator wafer and the detectors are located to detect secondary charged particles generated in the tissue equivalent medium.

Abstract: A radiation detection apparatus and method, the apparatus (100) comprising a first scintillator (112) for interacting with radiation and outputting light in response thereto, a first photodetector (102) adjacent to the first scintillator (112) for receiving and detecting light from the first scintillator (112) and outputting (108) a first output signal in response thereto, a second scintillator (114) located around the first scintillator (112), for interacting with radiation and outputting light in response thereto, and a second photodetector (104) adjacent to the second scintillator (114) for receiving and detecting light from the second scintillator (114) and outputting (110) a second output signal in response thereto.

Abstract: A method of determining the dose rate of a radiation source includes locating three or more detectors in the vicinity of the source. Each detector provides an output indicative of the amount of radiation received from the source and determining the location of the source from at least three of the detector outputs, wherein as many of the detector outputs is required to provide an acceptably accurate result are used in determining the location. Thus, the dose of radiation from the source can be determined from the determined location of the source and either a known activity of the source or a measure of the activity of the source determined by means of the detectors.

Abstract: The present invention provides a method of determining the dose rate of a radiation source including locating three or more detectors in the vicinity of said source, each for providing an output indicative of the amount of radiation received from said source and determining the location of said source from at least some of said detector outputs, wherein as many of said detector outputs is required to provide an acceptably accurate result are used in determining said location whereby the dose of radiation from said source can be determined from said determined location of said source and either a known activity of said source or a measure of the activity of said source determined by said detectors.

Abstract: The present invention provides a method of determining the dose rate of a radiation source comprising locating three or more detectors in the vicinity of said source, each for providing an output indicative of the amount of radiation received from said source;