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Publication numberWO1994023458 A3
Publication typeApplication
Application numberPCT/US1994/003737
Publication date10 Nov 1994
Filing date5 Apr 1994
Priority date5 Apr 1993
Also published asCN1041237C, CN1127553A, EP0693225A1, EP0693225A4, WO1994023458A2
Publication numberPCT/1994/3737, PCT/US/1994/003737, PCT/US/1994/03737, PCT/US/94/003737, PCT/US/94/03737, PCT/US1994/003737, PCT/US1994/03737, PCT/US1994003737, PCT/US199403737, PCT/US94/003737, PCT/US94/03737, PCT/US94003737, PCT/US9403737, WO 1994/023458 A3, WO 1994023458 A3, WO 1994023458A3, WO 9423458 A3, WO 9423458A3, WO-A3-1994023458, WO-A3-9423458, WO1994/023458A3, WO1994023458 A3, WO1994023458A3, WO9423458 A3, WO9423458A3
InventorsJack Wilson Moorman, Brian Skillicorn, Peter Joseph Fiekowsky, John William Di Wilent
ApplicantWilent Virginia & Hf, Cardiac Mariners Inc, Jack Wilson Moorman, Brian Skillicorn, Peter Joseph Fiekowsky
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
X-ray detector for a low dosage scanning beam digital x-ray imaging system
WO 1994023458 A3
Abstract
A scanning beam digital x-ray imaging system according to the present invention includes an x-ray tube (10) having an electron beam source (161) and a target anode (50). Circuitry is provided for focussing the beam (164) and scanning the beam (20, 30) across the target anode (50) in a predetermined pattern such as a serpentine scan pattern. A collimating element (90), preferably in the form of a perforated grid containing an array of apertures (140), is interposed between the x-ray source (50) and an object to be x-rayed (80). The apertures (140) are oriented to form x-ray beams (100) converging at a detector array (110) on a plane (270) located a selected distance from the collimating element (90). That distance is selected to allow placing the object to be x-rayed (80) in between the collimating element (90) and the detector array (110). A segmented x-ray detector array (110) containing a rectangular matrix of detector elements (170) is located in the detection plane (270). A focal plane (280) is created which gives optimal resolution at a particular, selectable distance from the x-ray source (50).
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2730566 *27 Dec 194910 Jan 1956Bartow Beacons IncMethod and apparatus for x-ray fluoroscopy
US3114862 *18 Mar 196017 Dec 1963Gen Motors CorpLatching relay
US3890521 *27 Dec 197217 Jun 1975Thomson CsfX-ray tube target and X-ray tubes utilising such a target
US4288697 *3 May 19798 Sep 1981Albert Richard DLaminate radiation collimator
US5140162 *9 Apr 199018 Aug 1992Roger StettnerSolid-state port digital imager
US5231654 *6 Dec 199127 Jul 1993General Electric CompanyRadiation imager collimator
US5231655 *6 Dec 199127 Jul 1993General Electric CompanyX-ray collimator
US5237598 *24 Apr 199217 Aug 1993Albert Richard DMultiple image scanning X-ray method and apparatus
Non-Patent Citations
Reference
1 *See also references of EP0693225A4
Classifications
International ClassificationG21K1/02, A61B6/02, H05G1/10, A61B6/00, A61B6/03, H01L31/09, G01T1/202, G01T1/29, G01T1/20, A61B6/12, G03B42/02, G01T1/00, H04N5/225, H05G1/64, A61B6/06, G21K5/02, H01J35/24, G06T1/00, G01T1/161, H01J35/14
Cooperative ClassificationA61B6/027, A61B6/4028, A61B6/4241, G01T1/2971, H05G1/64, A61B6/4488, A61B6/4042, H01J35/14, H05G1/10, G01T1/2018, G01T1/202, A61B6/482, A61B6/06, A61B6/12
European ClassificationA61B6/48D, A61B6/40D2, A61B6/42B8, A61B6/12, H05G1/10, H05G1/64, G01T1/202, G01T1/29D2C, A61B6/06, H01J35/14, G01T1/20P
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