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Class Information
Number: 378/159
Name: X-ray or gamma ray systems or devices > Beam control > Filter > Contoured
Description: Subject matter wherein the filter is of nonuniform thickness.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8644449 X-ray imaging apparatus and method of X-ray imaging Feb. 4, 2014
8638903 X-ray imaging apparatus and method of X-ray imaging Jan. 28, 2014
8575750 Semiconductor detector element configuration for very high efficiency gamma-ray detection Nov. 5, 2013
8477903 Validating a compensator for use in a radiation therapy machine to treat a cancer patient Jul. 2, 2013
8263954 Bolus, bolus manufacturing method, particle beam therapy system, and treatment planning apparatus Sep. 11, 2012
7742566 Multi-energy imaging system and method using optic devices Jun. 22, 2010
7630477 Method and apparatus of radiographic imaging with an energy beam tailored for a subject to be scanned Dec. 8, 2009
7535987 X-ray CT apparatus May. 19, 2009
7474736 Devices and methods for providing spatially variable x-ray beam intensity Jan. 6, 2009
7430282 Heel effect compensation filter X-ray irradiator, X-ray CT scanner and method for X-ray CT imaging Sep. 30, 2008
7397904 Asymmetric flattening filter for x-ray device Jul. 8, 2008
7336769 X-ray flux management device Feb. 26, 2008
7315611 X-ray reflector exhibiting taper, method of making same, narrow band x-ray filters including same, devices including such filters, multispectral x-ray production via unispectral filter, and mu Jan. 1, 2008
7308073 X-ray filter having dynamically displaceable x-ray attenuating fluid Dec. 11, 2007
7260182 Method and apparatus of radiographic imaging with an energy beam tailored for a subject to be scanned Aug. 21, 2007
7257197 Reflector rack, fabrication method thereof, and narrow brand x-ray filter and system including same Aug. 14, 2007
7254216 Methods and apparatus for filtering a radiation beam and CT imaging systems using same Aug. 7, 2007
7180081 Discharge produced plasma EUV light source Feb. 20, 2007
7088799 Method and apparatus for presenting multiple pre-subject filtering profiles during CT data acquisition Aug. 8, 2006
7082189 X-ray distribution adjusting filter apparatus and X-ray CT apparatus using the same Jul. 25, 2006
7076029 Method and apparatus of radiographic imaging with an energy beam tailored for a subject to be scanned Jul. 11, 2006
7046756 Rotatable filter for a pre-subject CT collimator having multiple filtering profiles May. 16, 2006
7012990 X-ray radiographic apparatus, X-ray restrictor, and X-ray radiographic method Mar. 14, 2006
6968030 Method and apparatus for presenting multiple pre-subject filtering profiles during CT data acquisition Nov. 22, 2005
6954516 Imaging systems and methods Oct. 11, 2005
6898271 X-ray radiographic apparatus, X-ray restrictor, and X-ray radiographic method May. 24, 2005
6836535 Method and apparatus of modulating the filtering of radiation during radiographic imaging Dec. 28, 2004
6754300 Methods and apparatus for operating a radiation source Jun. 22, 2004
6735273 X-ray computed tomography apparatus and multi-spectra correction using a radiation pre-filter May. 11, 2004
6647095 Method and apparatus for optimizing dosage to scan subject Nov. 11, 2003
6584173 X-ray examination device comprising a manually adjustable filter Jun. 24, 2003
6426999 X-ray apparatus including a filter provided with filter elements having an adjustable absorption Jul. 30, 2002
6320938 Method of X-ray protection during diagnostic CT imaging Nov. 20, 2001
6307918 Position dependent beam quality x-ray filtration Oct. 23, 2001
6289081 Method of manufacturing a filter, a filter thus manufactured and an X-ray examination apparatus Sep. 11, 2001
6280084 Methods and apparatus for indirect high voltage verification in an imaging system Aug. 28, 2001
6201852 Method and means for variably attenuating radiation Mar. 13, 2001
6198806 X-ray examination apparatus having an adjustable X-ray filter Mar. 6, 2001
6181774 X-ray examination apparatus including an X-ray filter Jan. 30, 2001
6148062 X-ray beam-shaping filter and X-ray imaging machine incorporating such a filter Nov. 14, 2000
6125165 Technique for attentuating x-rays with very low spectral distortion Sep. 26, 2000
6108403 X-ray equalization filter Aug. 22, 2000
6094474 Hyper-transparency compensating device for a gantry mounting radiography apparatus Jul. 25, 2000
6087672 Charged particle beam irradiation system and irradiation method thereof Jul. 11, 2000
6061426 X-ray examination apparatus including an x-ray filter May. 9, 2000
6021175 X-ray filter Feb. 1, 2000
5966426 X-ray examination apparatus including an x-ray filter Oct. 12, 1999
5881127 Automatic x-ray beam equalizer Mar. 9, 1999
5878111 X-ray absorption filter having a field generating matrix and field sensitive liquids Mar. 2, 1999
5778046 Automatic X-ray Beam Equalizer Jul. 7, 1998

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