AU2001281108A1 - Integral cathode - Google Patents

Integral cathode

Info

Publication number: AU2001281108A1
Authority: AU; Australia
Prior art keywords: integral cathode; cathode; integral
Prior art date: 2000-08-15
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Abandoned

Application number

AU2001281108A

Inventor

Dennis H. Runnoe

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Varian Medical Systems Inc

Original Assignee

Varian Medical Systems Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2000-08-15

Filing date

2001-08-07

Publication date

2002-02-25

2001-08-07 Application filed by Varian Medical Systems Inc filed Critical Varian Medical Systems Inc

2002-02-25 Publication of AU2001281108A1 publication Critical patent/AU2001281108A1/en

Status Abandoned legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
- H01J35/153—Spot position control
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/064—Details of the emitter, e.g. material or structure
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/066—Details of electron optical components, e.g. cathode cups
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/10—Drive means for anode (target) substrate

AU2001281108A 2000-08-15 2001-08-07 Integral cathode Abandoned AU2001281108A1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US09/639,684 US7062017B1 (en)	2000-08-15	2000-08-15	Integral cathode
US09639684		2000-08-15
PCT/US2001/024620 WO2002015220A1 (en)	2000-08-15	2001-08-07	Integral cathode

Publications (1)

Publication Number	Publication Date
AU2001281108A1 true AU2001281108A1 (en)	2002-02-25

Family

ID=24565136

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU2001281108A Abandoned AU2001281108A1 (en)	2000-08-15	2001-08-07	Integral cathode

Country Status (3)

Country	Link
US (1)	US7062017B1 (en)
AU (1)	AU2001281108A1 (en)
WO (1)	WO2002015220A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2844916A1 (en) *	2002-09-25	2004-03-26	Jacques Jean Joseph Gaudel	X-ray tube producing high intensity beam has spherical section electrodes producing divergent beam with clear virtual focus
US7274772B2 (en) *	2004-05-27	2007-09-25	Cabot Microelectronics Corporation	X-ray source with nonparallel geometry
US7657002B2 (en) *	2006-01-31	2010-02-02	Varian Medical Systems, Inc.	Cathode head having filament protection features
DE102006024435B4 (en) *	2006-05-24	2012-02-16	Siemens Ag	X-ray
US8311186B2 (en) *	2007-12-14	2012-11-13	Schlumberger Technology Corporation	Bi-directional dispenser cathode
US7924983B2 (en) *	2008-06-30	2011-04-12	Varian Medical Systems, Inc.	Thermionic emitter designed to control electron beam current profile in two dimensions
US9202663B2 (en) *	2012-12-05	2015-12-01	Shimadzu Corporation	Flat filament for an X-ray tube, and an X-ray tube
US9865423B2 (en)	2014-07-30	2018-01-09	General Electric Company	X-ray tube cathode with shaped emitter
US10468222B2 (en)	2016-03-31	2019-11-05	General Electric Company	Angled flat emitter for high power cathode with electrostatic emission control
EP3226277A1 (en) *	2016-03-31	2017-10-04	General Electric Company	Angled flat emitter for high power cathode with electrostatic emission control
DE102021204540B3 (en) *	2021-05-05	2022-09-29	Siemens Healthcare Gmbh	electron emitter device

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1251432B (en)	1962-06-18
US3558967A (en) *	1969-06-16	1971-01-26	Varian Associates	Linear beam tube with plural cathode beamlets providing a convergent electron stream
US3943393A (en)	1975-02-13	1976-03-09	The Machlett Laboratories, Inc.	Stress free filament structure
JPS5552611Y2 (en)	1976-01-29	1980-12-06
DE2941396A1 (en)	1979-10-12	1981-04-23	Philips Patentverwaltung Gmbh, 2000 Hamburg	TURNING ANODE X-RAY TUBES WITH A BASE OF GRAPHITE
DE3222511C2 (en) *	1982-06-16	1985-08-29	Feinfocus Röntgensysteme GmbH, 3050 Wunstorf	Fine focus X-ray tube
US4574388A (en)	1984-05-24	1986-03-04	General Electric Company	Core for molybdenum alloy x-ray anode substrate
FR2566960B1 (en)	1984-06-29	1986-11-14	Thomson Cgr	X-RAY TUBE WITH ROTATING ANODE AND METHOD FOR FIXING A ROTATING ANODE ON A SUPPORT AXIS
EP0187020B1 (en) *	1984-12-20	1993-02-10	Varian Associates, Inc.	High-intensity x-ray source
US4736400A (en)	1986-01-09	1988-04-05	The Machlett Laboratories, Inc.	Diffusion bonded x-ray target
US4739214A (en) *	1986-11-13	1988-04-19	Anatech Ltd.	Dynamic electron emitter
US4825123A (en)	1986-12-31	1989-04-25	General Electric Company	Two-piece cathode cup
US4792687A (en) *	1987-04-30	1988-12-20	Mobley Richard M	Freeman ion source
US5056126A (en)	1987-11-30	1991-10-08	Medical Electronic Imaging Corporation	Air cooled metal ceramic x-ray tube construction
FR2637732B1 (en)	1988-10-07	1995-11-17	Gen Electric Cgr	IMPROVEMENTS ON X-RAY TUBE COOLING DEVICES
US5077777A (en)	1990-07-02	1991-12-31	Micro Focus Imaging Corp.	Microfocus X-ray tube
US5264801A (en) *	1992-05-05	1993-11-23	Picker International, Inc.	Active carbon barrier for x-ray tube targets
US5515413A (en) *	1994-09-26	1996-05-07	General Electric Company	X-ray tube cathode cup assembly
US5633907A (en)	1996-03-21	1997-05-27	General Electric Company	X-ray tube electron beam formation and focusing
US5623530A (en)	1996-09-17	1997-04-22	General Electric Company	Cathode cup assembly for an x-ray tube
US6259193B1 (en)	1998-06-08	2001-07-10	General Electric Company	Emissive filament and support structure
US6066019A (en) *	1998-12-07	2000-05-23	General Electric Company	Recrystallized cathode filament and recrystallization method

2000
- 2000-08-15 US US09/639,684 patent/US7062017B1/en not_active Expired - Fee Related
2001
- 2001-08-07 WO PCT/US2001/024620 patent/WO2002015220A1/en not_active Ceased
- 2001-08-07 AU AU2001281108A patent/AU2001281108A1/en not_active Abandoned

Also Published As

Publication number	Publication date
US7062017B1 (en)	2006-06-13
WO2002015220A1 (en)	2002-02-21

Publication	Publication Date	Title
AU6419701A (en)	2001-12-11	Electropancreatography
AU2001262847A1 (en)	2001-12-11	Language-understanding
AU2001228708A1 (en)	2001-08-20	Coin-validation arrangement
AU2000267458A1 (en)	2001-10-15	Hypercomputer
AU2001254546A1 (en)	2001-11-07	Aminopiperidines
AU2001220246A1 (en)	2001-12-11	Neckphone
AU2001239310A1 (en)	2001-10-03	Decahydro-isoquinolines
AU2001258349A1 (en)	2001-11-26	Bisacylguanidine
AU2001290931A1 (en)	2002-03-26	Ski-snowboard
AU2001285886A1 (en)	2002-03-22	2-guanidino-4-aryl-quinazoline
AU2001283193A1 (en)	2002-03-04	Battery cathode
AU2001292786A1 (en)	2002-04-02	Sulfur-containing cathode
AU2001258924A1 (en)	2001-11-26	Microsatellite-aflp
AU2001293852A1 (en)	2002-06-27	Sulfonylguanidine
AU2001281108A1 (en)	2002-02-25	Integral cathode
AU2001246864A1 (en)	2002-01-10	Hypotensors
AU2001226668A1 (en)	2001-09-12	Crankshaft-starter-generator
AU2001281382A1 (en)	2002-02-18	Battery cathode
AU2000272656A1 (en)	2002-06-20	Otoplastic
AU2001262711A1 (en)	2001-12-17	Cytoprotectors
AU2001260192A1 (en)	2001-12-11	Glycinamides
AU4961400A (en)	2001-05-10	Anode
AU2001266336A1 (en)	2002-01-21	Body-buried electrode
AU2000272657A1 (en)	2002-06-20	Otoplastic
AU2001256521A1 (en)	2001-11-26	Golf-putters