FIELD: physics.
SUBSTANCE: detecting matrix contains a set of photosensitive elements and a set of optical fibres with an X-ray luminescent additive that are placed in a protective envelope and are in optical contact with the set of photosensitive elements. The protective shell is made of a material, the main X-ray luminescent line of which satisfies the condition EK<EL<1,5EK, where EK - the energy of the photoabsorption jump of the X-ray luminescent element in the optical fibre, EL - the energy of the main X-ray luminescent line of the optical fibre of the sheath material.
EFFECT: increasing the efficiency of radiation detection and increasing the signal-to-noise ratio.
5 cl, 4 dwg
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