The invention relates to a polymeric dosimetric sheet with a thickness of 0.8 to 10.0 mm which contains a radiochromic dye and other additives and which reacts with x-ray or other ionizing radiation to form a stable color. The invention also relates to a stack of the dosimetric sheets which constitute a three-dimensional dosimeter. Upon irradiation, the sheet stack captures the radiation field of an applied radiation treatment plan. The irradiated sheet stack is disassembled and scanned with readily available devices to afford an array of two-dimensional images which can verify the treatment plan throughout the entire target volume by computerized methods.

Provided is a glass for radiation detection having high fluorescence detection sensitivity and high weather resistance. A glass for radiation detection, comprising, in mol %, 0.1 to 30% of SiO.sub.2+B.sub.2O.sub.3, 0 to 20% of SiO.sub.2, 0 to 10% of B.sub.2O.sub.3, 40 to 70% of P.sub.2O.sub.5, 10 to 30% of Al.sub.2O.sub.3, 10 to 30% of Na.sub.2O, and 0.01 to 2% of Ag.sub.2O.

The invention relates to a material represented by the following formula (I)

(M).sub.8(MM).sub.6O.sub.24(X, X).sub.2:M

formula (I).
Further, the invention relates to a luminescent material, and to different medical imaging and diagnostic methods of using the material. Also disclosed is a method of securely identifying an item using the material.

The invention relates to a material represented by the following formula (I)

(M).sub.8(MM).sub.6O.sub.24(X, X).sub.2:M

formula (I).
Further, the invention relates to a luminescent material, and to different medical imaging and diagnostic methods of using the material. Also disclosed is a method of securely identifying an item using the material.

Alkali free fluorophosphate-based glass system that is highly radiation resistance (for example, they remain transparent and do not solarize before, during, and after application of high energy radiation of 10.sup.5 Rad or (1 kGy) or greater) and hence, reusable and further, when used with Ce provide a mechanism for determining the existence of radiation.

Alkali free fluorophosphate-based glass system that is highly radiation resistance (for example, they remain transparent and do not solarize before, during, and after application of high energy radiation of 10.sup.5 Rad or (1 kGy) or greater) and hence, reusable and further, when used with Ce provide a mechanism for determining the existence of radiation.

A radiation dosimeter for measuring the dose of radiation applied during radiation therapy includes a substrate, a phosphor containing layer including a stimulable phosphor and a binder on a side of the substrate, the weight ratio of the binder to the phosphor in the phosphor containing layer is 10 or higher, a colorant, and optionally a layer in contact with the phosphor containing layer. The colorant provides a total light absorbance of the layers applied on the side of the substrate containing the phosphor containing layer of at least 0.04 at the stimulation wavelengths of the stimulable phosphor.

A radiation dosimeter for measuring the dose of radiation applied during radiation therapy includes a substrate, a phosphor containing layer including a stimulable phosphor and a binder on a side of the substrate, the weight ratio of the binder to the phosphor in the phosphor containing layer is 10 or higher, a colorant, and optionally a layer in contact with the phosphor containing layer. The colorant provides a total light absorbance of the layers applied on the side of the substrate containing the phosphor containing layer of at least 0.04 at the stimulation wavelengths of the stimulable phosphor.

The invention relates to a material represented by the following formula (I)
(M).sub.8(MM).sub.6O.sub.24(X,X).sub.2:Mformula (I). Further, the invention relates to a luminescent material, to different uses, and to a device.

The invention relates to a material represented by the following formula (I)
(M).sub.8(MM).sub.6O.sub.24(X,X).sub.2:Mformula (I). Further, the invention relates to a luminescent material, to different uses, and to a device.