Device for detecting ionizing radiation using a layer of fluorescent material
View Patent ↗The invention relates to a device for capturing ionizing radiation, in which a substrate which is provided with a phosphor layer is accommodated in a housing. To simplify the device and to ensure a high light yield, the invention provides that a means for buffering the atmospheric humidity is accommodated in the housing.
1. A device for capturing ionizing radiation, in which a substrate which is provided with a phosphor layer formed from CsBr:Eu as a doped alkali metal halide is accommodated in a housing, wherein a means for buffering the atmospheric humidity is accommodated in the housing and in which the housing is substantially produced from glass or plastic as a water-vapor-impermeable material wherein said means for buffering the atmospheric humidity contains a saturated solution of a further alkali metal halide.
2. The device of claim 1 wherein the alkali metal halide and the further alkali metal halide have the same composition.
3. The device of claim 2 wherein said means for buffering the atmospheric humidity contains silica gel.
4. The device of claim 3 wherein a fresh-air access provided on the housing is designed in such a way that fresh air which enters the housing is passed via said means for buffering the atmospheric humidity, wherein said means is used to set a constant atmospheric humidity in the range from 50 to 60% in the housing.
5. The device of claim 2 wherein a fresh-air access provided on the housing is designed in such a way that fresh air which enters the housing is passed via said means for buffering the atmospheric humidity, wherein said means is used to set a constant atmospheric humidity in the range from 50 to 60% in the housing.
6. The device of claim 1 wherein said means for buffering the atmospheric humidity contains silica gel.
7. The device of claim 6 wherein a fresh-air access provided on the housing is designed in such a way that fresh air which enters the housing is passed via said means for buffering the atmospheric humidity, wherein said means is used to set a constant atmospheric humidity in the range from 50 to 60% in the housing.
8. The device of claim 1 wherein a fresh-air access provided on the housing is designed in such a way that fresh air which enters the housing is passed via said means for buffering the atmospheric humidity, wherein said means is used to set a constant atmospheric humidity in the range from 50 to 60%, in the housing.
9. The device of claim 1 wherein said means for buffering the atmospheric humidity contains a saturated solution of alkali metal chlorides.
10. The device of claim 9 wherein said means for buffering the atmospheric humidity contains silica gel.
11. The device of claim 10 wherein a fresh-air access provided on the housing is designed in such a way that fresh air which enters the housing is passed via said means for buffering the atmospheric humidity, wherein said means is used to set a constant atmospheric humidity in the range from 50 to 60% in the housing.
12. The device of claim 9 wherein a fresh-air access provided on the housing is designed in such a way that fresh air which enters the housing is passed via said means for buffering the atmospheric humidity, wherein said means is used to set a constant atmospheric humidity in the range from 50 to 60% in the housing.
13. A device for capturing ionizing radiation, in which a substrate which is provided with a phosphor layer formed from CsBr:Eu as a doped alkali metal halide is accommodated in a housing, wherein a means for buffering the atmospheric humidity is accommodated in the housing and in which the housing is substantially produced from glass or plastic as a water-vapor-impermeable material wherein a fresh-air access provided on the housing is designed in such a way that fresh air which enters the housing is passed via said means for buffering the atmospheric humidity, wherein said means is used to set a constant atmospheric humidity in the range from 50 to 60% in the housing.