Reusable personal sun-monitor

Method to determine in a quantitative way stored amounts of radiation energy originating from radiation having a wavelength of 350 nm or less, comprising the steps of:

• i) providing a personal monitor comprising a storage medium for absorbing incident radiation energy, wherein said storage medium comprises a storage phosphor panel capable to store radiation energy originating from radiation having a wavelength of 350 nm or less, wherein said panel is covered with an optical filter absorbing radiation having a wavelength of 350 nm or more, wherein said panel is present in a housing;
• ii) opening the housing of said monitor thereby irradiating said storage phosphor panel covered with said optical filter by incident radiation in such a way that said panel is exposed proportionally and simultaneously with an object which is sensitive to said radiation;
• iii) closing the said housing;
• iv) reading out said storage phosphor panel by the steps of entering the personal monitor in a read-out apparatus, removing the optical filter covering the storage phosphor panel, adding stimulating energy to the said storage phosphor panel, digitally detecting energy released from said storage phosphor panel by a detector;
• v) erasing stored rest energy.

Method to determine in a quantitative way stored amounts of radiation energy originating from radiation having a wavelength of 350 nm or less, comprising the steps of:

• i) providing a personal monitor in a housing;
• ii) opening the housing of said monitor thereby irradiating a storage phosphor panel covered with an optical filter by incident radiation in such a way that said panel is exposed proportionally and simultaneously with an object which is sensitive to said radiation;
• iii) closing the said housing,
• iv) reading out said storage phosphor panel by the steps of entering the personal monitor in a read-out apparatus, removing the optical filter covering the storage phosphor panel, adding stimulating energy to the said storage phosphor panel, wherein detecting said released energy proceeds by an optical system comprising a photomultiplier, a photodiode, a phototransistor or a gas detector;
• and
• v) erasing stored rest energy.