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Inventor:
Seppi; Edward J.
Address:
Portola Valley, CA
No. of patents:
24
Patents:












Patent Number Title Of Patent Date Issued
8116430 Multi-mode cone beam CT radiotherapy simulator and treatment machine with a flat panel imager February 14, 2012
A multi-mode cone beam computed tomography radiotherapy simulator and treatment machine is disclosed. The radiotherapy simulator and treatment machine both include a rotatable gantry on which is positioned a cone-beam radiation source and a flat panel imager. The flat panel imager ca
8000436 Radiation scanning units including a movable platform August 16, 2011
A scanning unit for inspecting objects comprises in one example a radiation source, a movable platform to support an object, and a detector positioned to receive radiation after interaction of radiation with the object. The platform is movable at least partially within a cavity defin
7945021 Multi-mode cone beam CT radiotherapy simulator and treatment machine with a flat panel imager May 17, 2011
A multi-mode cone beam computed tomography radiotherapy simulator and treatment machine is disclosed. The radiotherapy simulator and treatment machine both include a rotatable gantry on which is positioned a cone-beam radiation source and a flat panel imager. The flat panel imager ca
7869862 Systems and methods for functional imaging using contrast-enhanced multiple-energy computed tomo January 11, 2011
A method of generating images of a portion of a body includes introducing a contrast agent into the body, generating a first set of image data using radiation at a first energy level after the contrast agent is introduced into the body, generating a second set of image data using rad
7737972 Systems and methods for digital volumetric laminar tomography June 15, 2010
Systems and methods are provided for implementing an analytical approach to digital volumetric laminar tomography. The volumetric data visualizations generally take the form of volumetric images which approximate the spatial distribution of an x-ray attenuation coefficient throughout
7672426 Radiation scanning units with reduced detector requirements March 2, 2010
In one embodiment, a scanning unit for inspecting cargo conveyances uses a partial radiation beam and a detector of reduced length. In another embodiment, a scanning unit for inspecting objects comprises a detector with gaps along its expanse. In both cases, the cost of the scanning
7672422 Radiation scanning of objects for contraband March 2, 2010
Systems and methods for the radiation scanning of objects, including large objects such as cargo containers, to identify contraband.
7649981 Multi-energy x-ray source January 19, 2010
An apparatus for use in a radiation procedure includes a radiation filter having a first portion and a second portion, the first and the second portions forming a layer for filtering radiation impinging thereon, wherein the first portion is made from a first material having a first x
7397904 Asymmetric flattening filter for x-ray device July 8, 2008
Devices and methods for implementing selective, or asymmetric, attenuation of an x-ray beam. In one example, a filter is provided that is substantially in the form of a wedge where some portions of the filter are thicker, and thus provide greater attenuation, than other, thinner port
7369640 Radiation scanning of objects for contraband May 6, 2008
In one example, a scanning unit for examining contents of a cargo container is disclosed comprising a first path through the scanning unit for transport of a cargo container and one or more sources of respective beams of radiation. At least one of the one or more sources are movable
7356115 Radiation scanning units including a movable platform April 8, 2008
A scanning unit for inspecting objects comprises in one embodiment a radiation source to emit a beam of radiation, a rotatable platform to support an object for inspection by the beam of radiation and a detector positioned to receive radiation after interaction of the beam with the o
7289599 Radiation process and apparatus October 30, 2007
A radiation apparatus (10) includes a beam source (12) generating radiation beam toward a target (11). A projection detector (17) detects the images of the target (11) formed by the radiation beam. In a radiation treatment session using the apparatus (10), the beam source (12) first
7244943 X-ray image acquisition apparatus July 17, 2007
An X-ray image acquisition apparatus (15) includes a conversion panel (20) aligned with a photo detector array (40). The conversion panel (20) includes a plurality of conversion cells (22), each including a conversion body (31), an X-ray transparent and light reflective file over the
7177386 Breathing synchronized computed tomography image acquisition February 13, 2007
A method for collecting computed tomography (CT) image data includes determining a number of intervals N into which a respiratory cycle is to be divided, determining a number of respiratory cycles M to be covered in one gantry rotation, and rotating a gantry to collect at least M.times.N
7103137 Radiation scanning of objects for contraband September 5, 2006
A scanning unit for identifying contraband within objects, such as cargo containers and luggage, moving through the unit along a first path comprises at least one source of a beam of radiation movable across a second path that is transverse to the first path and extends partially aro
7078699 Imaging apparatus and method with event sensitive photon detection July 18, 2006
An imaging apparatus (10) includes a photon detector (20) and an accessing circuit (44) coupled thereto. The photon detector (20) detects photons and generates signals in response thereto. The accessing circuit (44) reads out the signals from the photon detector (20) at a sufficiently
6744912 Multiple mode digital X-ray imaging system June 1, 2004
A multiple mode digital X-ray imaging system providing for preprocessing "binning" of analog pixel signals from a detector array by selectively summing, within the detector array, adjacent pixel charges on a row-by-row basis and selectively summing, within detector array readout circuits
6424750 Multiple mode digital X-ray imaging system July 23, 2002
A multiple mode digital X-ray imaging system providing for preprocessing "binning" of analog pixel signals from a detector array by selectively summing, within the detector array, adjacent pixel charges on a row-by-row basis and selectively summing, within detector array readout circuits
5970115 Multiple mode digital X-ray imaging system October 19, 1999
A multiple mode digital X-ray imaging system providing for preprocessing "binning" of analog pixel signals from a detector array by selectively summing, within the detector array, adjacent pixel charges on a row-by-row basis and selectively summing, within detector array readout circuits
5692507 Computer tomography apparatus using image intensifier detector December 2, 1997
Disclosed is a low cost computer tomographic (CT) scanner system specifically designed for radiation therapy treatment planning. A 512-channel photo-diode array with digitizing electronics converts image intensifier optical projection data directly into digital signals and has a dyna
5335255 X-ray scanner with a source emitting plurality of fan beams August 2, 1994
A slow scanning CT Scanner providing slice data simultaneously for a plurality of slices so as to avoid blurring between adjacent slices due to patient movement.
5168532 Method for improving the dynamic range of an imaging system December 1, 1992
Disclosed is a method for improving the dynamic resolution of an imaging system. The method employs a dual sampling or exposure technique which samples light from an image intensifier over a long and a short sample interval. When the resulting measurement for the long sample interval
5117445 Electronically enhanced X-ray detector apparatus May 26, 1992
The detector of the present invention is suitable for use in a radiation therapy simulator machine. The detector comprises an X-ray image intensifier tube to convert X-rays into photons, a linear array of photodiodes to convert the photons to electrical signals, optical means for cou
5099505 Method for increasing the accuracy of a radiation therapy apparatus March 24, 1992
Disclosed is a method for increasing the accuracy of images obtained in radiation therapy apparatus, such as a computed tomography simulator which employs an image intensifier and a photodiode detector for converting light from the image intensifier to electrical signals for further










 
 
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