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Class Information
Number: 378/121
Name: X-ray or gamma ray systems or devices > Source > Electron tube
Description: Subject matter wherein the source is an electronic discharge device.

Sub-classes under this class:

Class Number Class Name Patents
378/122 Field emisssion or cold cathode 156
378/123 Vacuum control 46
378/141 With cooling means 205
378/138 With electron focusing or intensity control means 249
378/137 With electron scanning or deflecting means 252
378/135 With movable electrode 32
378/125 With movable target 242
378/134 With plural cathodes or heaters 94
378/124 With plural targets or anodes 108
378/139 With potential stress distribution 18
378/136 With specific cathode 237
378/140 With x-ray window or secondary radiation screen 144

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8693637 Apparatus and method for generating X-ray using electron cyclotron resonance ion source Apr. 8, 2014
8675817 Industrial X-ray generator Mar. 18, 2014
8675818 Ceramic metallization in an x-ray tube Mar. 18, 2014
8654924 X-ray tube with target temperature sensor Feb. 18, 2014
8559598 Miniature X-ray source device for effecting radiation therapy Oct. 15, 2013
8559597 XRF system having multiple excitation energy bands in highly aligned package Oct. 15, 2013
8472586 X-ray source and X-ray photographing apparatus including the source Jun. 25, 2013
8406378 Thick targets for transmission x-ray tubes Mar. 26, 2013
8385507 Apparatus and method for improved transient response in an electromagnetically controlled X-ray tube Feb. 26, 2013
8379799 Electrically insulating X-ray shielding devices in an X-ray tube Feb. 19, 2013
8362717 Method of driving an injector in an internal injection betatron Jan. 29, 2013
8300768 X-ray tube and X-ray CT apparatus Oct. 30, 2012
8284900 Apparatus and method for improved transient response in an electromagnetically controlled X-ray tube Oct. 9, 2012
8284901 Apparatus and method for improved transient response in an electromagnetically controlled x-ray tube Oct. 9, 2012
8280007 Apparatus and method for improved transient response in an electromagnetically controlled X-ray tube Oct. 2, 2012
8280006 X-ray tube Oct. 2, 2012
8184774 Dual-color pyrometric measurement of X-ray focal spot temperature May. 22, 2012
8081734 Miniature, low-power X-ray tube using a microchannel electron generator electron source Dec. 20, 2011
8073108 X-ray generator and the use thereof in an X-ray examination device or X-ray inspection device Dec. 6, 2011
8059787 Spectrum-preserving heel effect compensation filter made from the same material as anode plate Nov. 15, 2011
8040033 Electrode device for gas discharge sources and method of operating a gas discharge source having this electrode device Oct. 18, 2011
8009806 Apparatus and method of cooling a liquid metal bearing in an x-ray tube Aug. 30, 2011
8000450 Aperture shield incorporating refractory materials Aug. 16, 2011
8000448 Device and method for adjusting collision timing between electron beam and laser light Aug. 16, 2011
7991121 Frequency tuned anode bearing assembly Aug. 2, 2011
7983393 Circular accelerator with adjustable electron final energy Jul. 19, 2011
7978824 X-ray tube having transmission anode Jul. 12, 2011
7965818 Field emission X-ray apparatus, methods, and systems Jun. 21, 2011
7949100 Dual-colour pyrometric measurement of X-ray focal spot temperature May. 24, 2011
7949099 Compact high voltage X-ray source system and method for X-ray inspection applications May. 24, 2011
7916838 Betatron bi-directional electron injector Mar. 29, 2011
7903788 Thermionic emitter designed to provide uniform loading and thermal compensation Mar. 8, 2011
7876883 Mammography X-ray homogenizing optic Jan. 25, 2011
7872241 Method and apparatus for production and maintenance of electron beam space-charge neutralization Jan. 18, 2011
RE41741 Optically driven therapeutic radiation source having a spiral shaped thermionic cathode Sep. 21, 2010
7796737 Apparatus for reducing KV-dependent artifacts in an imaging system and method of making same Sep. 14, 2010
7783011 Transmission type X-ray tube and manufacturing method thereof Aug. 24, 2010
7783012 Apparatus for a surface graded x-ray tube insulator and method of assembling same Aug. 24, 2010
7778391 Field emission cathode and x-ray tube embodying same Aug. 17, 2010
7771117 X-ray system for dental diagnosis and oral cancer therapy based on nano-material and method thereof Aug. 10, 2010
7773726 X-ray tube and X-ray source Aug. 10, 2010
7720199 X-ray tube and X-ray source including same May. 18, 2010
7706506 X-ray system for irradiating material used in transfusions Apr. 27, 2010
7702077 Apparatus for a compact HV insulator for x-ray and vacuum tube and method of assembling same Apr. 20, 2010
7668297 X-ray tube and nondestructive inspection equipment Feb. 23, 2010
7664230 X-ray tubes Feb. 16, 2010
7664229 X-ray tube and x-ray source including same Feb. 16, 2010
7623629 Transmission type X-ray tube and manufacturing method thereof Nov. 24, 2009
7593509 Analytical x-ray tube for close coupled sample analysis Sep. 22, 2009
7564939 Control means for heat load in X-ray scanning apparatus Jul. 21, 2009

1 2 3 4 5 6

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