Radiant energy – Invisible radiant energy responsive electric signalling – Including ionization means
Reexamination Certificate
2005-05-10
2005-05-10
Gabor, Otilia (Department: 2878)
Radiant energy
Invisible radiant energy responsive electric signalling
Including ionization means
C250S370090
Reexamination Certificate
active
06891166
ABSTRACT:
The invention relates to a multi-layered radiation converter, a radiation detector comprising such a converter as well as a radiation-based imaging system using such a detector. Each converter layer (32) in the radiation converter is adapted for interaction with incident radiation to cause the emission of electrons into drift holes defined in the converter layer. The drift holes of one converter layer (32-1) are staggered with respect to the drift holes of another converter layer (32-2). By mutually shifting the converter layers such that the drift holes of two different layers are no longer well-aligned, but rather staggered with respect to each other, the effective conversion area will be increased, and the probability of incoming radiation passing through the stack without interaction with the converter layers will be significantly reduced. In this way, high absorption efficiency for incident radiation inside the multi-layered converter structure is ensured, while still maintaining transparency for emitted electrons through the drift holes.
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Brahme Anders
Iacobaeus Christian
Östling Janina
Peskov Vladimir
Gabor Otilia
Ray Therapy Imaging AB
Young & Thompson
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