Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Reexamination Certificate
2007-04-26
2009-10-20
Porta, David P (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
C250S370140, C377S053000, C377S073000, C378S114000
Reexamination Certificate
active
07605375
ABSTRACT:
A radiation device includes a detector connected to a multi-functional radiation identifying and processing application specific integrated circuit. The detector includes a plurality of individual imaging cells, each imaging cell generating a charge in response to incident radiation events and outputting the generated charge at an imaging cell output. The application specific integrated circuit includes a different circuit connected respectively to a corresponding one of the imaging cell outputs, each circuit receiving and processing the generated charge received from the corresponding one imaging cell output. Each circuit includes a preamplifier for generating a voltage or current amplitude in response to the received charge, a counter, and a mode logic configured for setting the counter to perform, selectively, at least two of a) photon counting, b) analog to digital conversion of the one of the voltage amplitude and the current amplitude, and c) timing measurement of incident radiation events.
REFERENCES:
patent: 4131798 (1978-12-01), Reddy et al.
patent: 5166959 (1992-11-01), Chu et al.
patent: 6248990 (2001-06-01), Pyyhtia et al.
patent: 6927396 (2005-08-01), Vydrin et al.
patent: 2003/0194047 (2003-10-01), Murphy
patent: 2004/0017224 (2004-01-01), Tumer et al.
patent: 2005/0098735 (2005-05-01), Heismann
M. Campbell et al, “A Readout Chip for a 64×64 Pixel Matrix with 15-bit Single Photon Counting”, Jun. 1998, pp. 751-753, IEEE Transactions on Nuclear Science, vol. 45, No. 3.
Erik H.M. Heijne et al, “Development fo Silicon Pixel Detectors: An Introduction”, 1989, pp. 467-471, Nuclear INstruments and Methods in Physics Research A275.
B. Mikulec et al, “X-ray imaging using single photon processing with semiconductor pixel detectors”, 2003, pp. 282-286, Nuclear Instruments & Methods in Physics Research, Section A.
C. Da Via et al, “Imaging of visible photons using hybrid silicon pixel detectors”, Aug. 1994, pp. 414-419, Nuclear Instruments & Methods in Physics Research, Section A.
C. Da Via et al, “Gallium arsenide pixel detectors for medical imaging” 1997, pp. 148-151, Nuclear Instruments & Methods in Physics Research, Section A.
P. Fischer et al, “A counting pixel readout chip for imaging applications”, Sep. 23, 1997, pp. 1-10, Centre de Physique des Particules, IN2P3-CNRS, Case 907.
P. Fischer et al, “A Counting CdTe Pixel Detector for hard X-ray and γ-ray Imaging”, May 2001, 6 pages, Universitat Bonn, Physikalisches Institut, submitted to IEEE Transactions on Nuclear Science.
E. Beuville et al, “A 2D Smart Pixel Detector for Time Resolved Protein Crystallography”, Jun. 1996, pp. 1243-1247, IEEE Transactions on Nuclear Science, vol. 43, No. 3.
C. Ronnqvist et al, “Development of a Digital X-ray Imaging Detector”, 1996, pp. 1607-1611, Dept. of Radiation Sciences, Uppsala University, Uppsala, Sweden. 0-7803-3180-X.
C. Ronnqvist et al, “A 64-Channel Pixel Readout Chip for Dynamic X-ray Imaging”, pp. 351-355, Dept. of Radiation Sciences, Uppsala University, Sweden. 0-7803-3534-1/97 1997IEEE.
“Semiconductor micropattern pixel detectors: a review of the beginnings”, 45 pages, 2001, Elsevier Science B.V., doi: 10.1016/SO168-9002(01)00340-0.
Leppanen Anssi
Schulman Tom
Spartiotis Konstantinos
Green Yara B
Oy Ajat Ltd.
Porta David P
Young & Thompson
LandOfFree
Multi-functional radiation/photon identifying and processing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-functional radiation/photon identifying and processing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-functional radiation/photon identifying and processing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4120378