A dose rate monitoring device contains a first radiation detector including an inorganic crystal scintillator, a second radiation detector including a plastic scintillator, a detector mount having a cylinder part, a low range calculator calculating a first compensation dose rate of an incident radioactive ray based on the detection signal pulse, a high range calculator calculating a second compensation dose rate of an incident radioactive ray based on the detection signal pulse, a dose rate calculator calculating a dose rate ratio from the first compensation dose rate and the second compensation dose rate, and choosing a compensation dose rate according to the magnitude of the calculated dose rate ratio; and a display displaying the compensation dose rate which is outputted from the dose calculator, wherein the plastic scintillator which is included in the second radiation detector is wound around the cylinder part of the detector mount.

An apparatus for analyzing nuclides and the concentration thereof in waste contained in a radioactive waste packaging container according to the present disclosure relates to an apparatus that has detector devices located above/under the waste packaging container and performs nuclide and concentration analysis on the waste in the packaging container by scanning the packaging container in the longitudinal direction thereof using a forward/backward driving device. In particular, upper/lower detector modules are equipped with multiple high-resolution gamma ray detectors to increase inspection efficiency, each module is designed to be driven up/down, and each detector in the module is designed to be driven left/right, thereby performing nuclide and concentration analysis on various types of packaging containers regardless of the size thereof.

A method for measuring radiation intensity includes measuring the radiation intensity received by the protein in a radiation field based on degree of protein degradation in the radiation field, wherein the degree of degradation is a ratio of the molecular weight of the protein before and after irradiation. The measuring method is simple in operation, small in number of steps, small in error, and capable of measuring radiation doses of various radiation fields or even mixed radiation fields. Use of a biological dosimeter for measuring the radiation intensity by the method in a neutron capture therapy system can not only assess radiation contamination in the irradiation chamber, but also evaluate the neutron dose.

A method for measuring radiation intensity includes measuring the radiation intensity received by the protein in a radiation field based on degree of protein degradation in the radiation field, wherein the degree of degradation is a ratio of the molecular weight of the protein before and after irradiation. The measuring method is simple in operation, small in number of steps, small in error, and capable of measuring radiation doses of various radiation fields or even mixed radiation fields. Use of a biological dosimeter for measuring the radiation intensity by the method in a neutron capture therapy system can not only assess radiation contamination in the irradiation chamber, but also evaluate the neutron dose.

A dosimeter includes a housing and a printed circuit board positioned within the housing. A silicon photomultiplier is operably connected to the printed circuit board. A scintillator formed of Ce-activated lithium aluminosilicate glass is positioned on the silicon photomultiplier. An optical coupling is positioned between the scintillator and the silicon photomultiplier, and an optical reflector surrounds the scintillator.

Fluence non-uniformities across a surface portion of a target (organism or inanimate object) due to inherent non-uniformities in the irradiation beam and/or shadowed target surfaces, are known to limit the effectiveness of target kinetic processes responsive to wave energy irradiation (electromagnetic, EM, elastic, EL, and/or quantum particle, QP). A field of scattering particles (e.g., bubbles in water, aerosols such as dry fog, powders, etc.) is constructed spatially/temporally in the vicinity of the target and in the path of propagating wave energy to improve the fluence coverage and thereby enhance the overall effectiveness of the kinetic process. The scatterers can be added to an existing irradiation system (retrofit application) or added to the design of a new system (forward fit). Novel dosimeters and methods of dosimetry are also disclosed to more accurately characterize the fluence received over complex surfaces.

Fluence non-uniformities across a surface portion of a target (organism or inanimate object) due to inherent non-uniformities in the irradiation beam and/or shadowed target surfaces, are known to limit the effectiveness of target kinetic processes responsive to wave energy irradiation (electromagnetic, EM, elastic, EL, and/or quantum particle, QP). A field of scattering particles (e.g., bubbles in water, aerosols such as dry fog, powders, etc.) is constructed spatially/temporally in the vicinity of the target and in the path of propagating wave energy to improve the fluence coverage and thereby enhance the overall effectiveness of the kinetic process. The scatterers can be added to an existing irradiation system (retrofit application) or added to the design of a new system (forward fit). Novel dosimeters and methods of dosimetry are also disclosed to more accurately characterize the fluence received over complex surfaces.

Provided is a radiation monitor and the like capable of appropriately measuring radiation. A radiation monitor (100) includes: radiation detection units (11, 12); optical fibers (13p, 13q) that transmit light generated by a plurality of radiation detection elements (11a, 12a) to merge; a light detection unit (14) that converts the light after merging guided to the light detection unit into an electric pulse; a measurement device (15) that calculates a dose rate of radiation based on a count rate of the electric pulses; and an analysis/display device (16). Housings (11b, 12b) include a housing (11b) made of a first material and another housing (12b) made of a second material.

A radiotherapy dose rate monitor system includes an electrode configured to be impinged by radiotherapy radiation, and a current measurement circuit configured to measure a current through the electrode. An emission of secondary electrons emitted from the electrode provides a majority of current through the electrode.

A radiotherapy dose rate monitor system includes an electrode configured to be impinged by radiotherapy radiation, and a current measurement circuit configured to measure a current through the electrode. An emission of secondary electrons emitted from the electrode provides a majority of current through the electrode.