The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2005
Filed:
Jul. 02, 2002
Anders Brahme, Danderyd, SE;
Christian Iacobaeus, Värmdö, SE;
Janina Östling, Stockholm, SE;
Vladimir Peskov, Paris-la-Defence Cedex, FR;
Anders Brahme, Danderyd, SE;
Christian Iacobaeus, Värmdö, SE;
Janina Östling, Stockholm, SE;
Vladimir Peskov, Paris-la-Defence Cedex, FR;
Ray Therapy Imaging AB, Uppsala, SE;
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 () 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 (-) are staggered with respect to the drift holes of another converter layer (-). 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.