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.

A deformable phantom, according to the present invention, has a housing made of a Mill invisible material enclosing a sealed reservoir filled with a MM signal producing material, a piston slidably mounted within a sleeve and extending into the sealed reservoir, wherein the sleeve is slidably mounted to the housing and extends into the sealed reservoir, a deformable structure within the sealed reservoir, and one or more point dosimeters located on or within the deformable structure. The piston and sleeve move opposite to one another to conserve a constant fluid volume within the sealed reservoir as the piston moves in and out of the sealed reservoir to cause motion and/or deformation of the deformable structure.

A deformable phantom, according to the present invention, has a housing made of a Mill invisible material enclosing a sealed reservoir filled with a MM signal producing material, a piston slidably mounted within a sleeve and extending into the sealed reservoir, wherein the sleeve is slidably mounted to the housing and extends into the sealed reservoir, a deformable structure within the sealed reservoir, and one or more point dosimeters located on or within the deformable structure. The piston and sleeve move opposite to one another to conserve a constant fluid volume within the sealed reservoir as the piston moves in and out of the sealed reservoir to cause motion and/or deformation of the deformable structure.

Systems and methods for an improved dosimeter for measuring dosage for photodynamic therapy treatment are provided. An example systems includes a dosimeter comprising a variable optical filter system configured to receive a second light, the second light comprising luminescence produced by singlet oxygen and one or more background signal and selectively transmit the luminescence and the one or more background signals as a third light, the variable optical filter system comprises a plurality of optical bandpass filters that are switchable to selectively transmit the luminescence and the one or more background signals. The dosimeter also includes a photoreceiver configured to receive the third light and configured to generate electrical output signals corresponding to the luminescence and the one or more background signals, the electrical output signals being indicative of an amount of the singlet oxygen produced based on activating the photosensitizer.

Systems and methods for an improved dosimeter for measuring dosage for photodynamic therapy treatment are provided. An example systems includes a dosimeter comprising a variable optical filter system configured to receive a second light, the second light comprising luminescence produced by singlet oxygen and one or more background signal and selectively transmit the luminescence and the one or more background signals as a third light, the variable optical filter system comprises a plurality of optical bandpass filters that are switchable to selectively transmit the luminescence and the one or more background signals. The dosimeter also includes a photoreceiver configured to receive the third light and configured to generate electrical output signals corresponding to the luminescence and the one or more background signals, the electrical output signals being indicative of an amount of the singlet oxygen produced based on activating the photosensitizer.

A system for monitoring doses from an ionizing radiation source to a treatment region of a patient and immobilizing a body cavity relative to the treatment region, is provided. The system includes a probe body for insertion into the body cavity. The probe body separates the body cavity from the treatment region to reduce exposure to doses from the ionizing radiation source. Radiation detectors are disposed along the probe body to measure at least one dose. A slot disposed adjacent the radiation detectors receives a dosimetry film that, upon exposure to the one or more doses from the ionizing radiation source, indicates a quantification of the doses. A coupling is in fluid communication with a removable sheath having coupled thereto a vacuum or a pump to remove fluid or gas from the body cavity and ensure inner wall of the body cavity is in contact with the sheath.

A system for monitoring doses from an ionizing radiation source to a treatment region of a patient and immobilizing a body cavity relative to the treatment region, is provided. The system includes a probe body for insertion into the body cavity. The probe body separates the body cavity from the treatment region to reduce exposure to doses from the ionizing radiation source. Radiation detectors are disposed along the probe body to measure at least one dose. A slot disposed adjacent the radiation detectors receives a dosimetry film that, upon exposure to the one or more doses from the ionizing radiation source, indicates a quantification of the doses. A coupling is in fluid communication with a removable sheath having coupled thereto a vacuum or a pump to remove fluid or gas from the body cavity and ensure inner wall of the body cavity is in contact with the sheath.

The present invention relates to a metal-organic hybrid lattice material and the application in the detection of radiation sources. In the invention, a water-soluble thorium salt and 2,2′:6′,2′-terpyridine-4′-carboxylic acid are subjected to a solvothermal reaction in water and an organic mixed solvent to obtain a metal-organic hybrid lattice material. The crystalline material produces radiation-induced discoloration and photoluminescence change under ultraviolet light, X-ray, γ-ray, β-ray, and so on. The material is useful for qualitative and quantitative detection and calibration after high-dose irradiation. Compared with the traditional radiation-induced color change indicator labels, the material achieves the visual qualitative and quantitative detection and has strong radiation stability, high reuse rate, wide detection range, and good linear relationship, to solve the problem of traditional materials relying on professional optical equipment to quantify the radiation dose.

The present invention relates to a metal-organic hybrid lattice material and the application in the detection of radiation sources. In the invention, a water-soluble thorium salt and 2,2′:6′,2′-terpyridine-4′-carboxylic acid are subjected to a solvothermal reaction in water and an organic mixed solvent to obtain a metal-organic hybrid lattice material. The crystalline material produces radiation-induced discoloration and photoluminescence change under ultraviolet light, X-ray, γ-ray, β-ray, and so on. The material is useful for qualitative and quantitative detection and calibration after high-dose irradiation. Compared with the traditional radiation-induced color change indicator labels, the material achieves the visual qualitative and quantitative detection and has strong radiation stability, high reuse rate, wide detection range, and good linear relationship, to solve the problem of traditional materials relying on professional optical equipment to quantify the radiation dose.

An optical module that includes (a) an optical interface that includes an input surface and an output surface, and (b) a scintillator that has a flat surface. The scintillator is configured emit emitted light through the flat surface in response to an impingement of a charged particle on the scintillator. The flat surface is optically coupled to the input surface. The optical interface is configured to (i) receive the emitted light from the scintillator and (ii) output, via the output surface, output light. An optical interface refractive index substantially equals a scintillator refractive index.