FR2633775B1 - Tube radiogene a cathode plane et a chauffage indirect - Google Patents

Tube radiogene a cathode plane et a chauffage indirect

Info

Publication number: FR2633775B1
Authority: FR; France
Prior art keywords: indirect heating; flat cathode; radiogenic tube; radiogenic; tube
Prior art date: 1988-07-01
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.): Expired - Lifetime

Application number

FR8808962A

Other languages

English (en)

Other versions

FR2633775A1 (fr

Inventor

Sixte De Fraguier

Francois Caire

Reallan Gilles Lemest

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.)

General Electric CGR SA

Original Assignee

General Electric CGR SA

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.)

1988-07-01

Filing date

1988-07-01

Publication date

1995-11-17

1988-07-01 Application filed by General Electric CGR SA filed Critical General Electric CGR SA

1988-07-01 Priority to FR8808962A priority Critical patent/FR2633775B1/fr

1989-06-22 Priority to EP89401761A priority patent/EP0349387B1/fr

1989-06-22 Priority to DE8989401761T priority patent/DE68900473D1/de

1989-06-22 Priority to ES198989401761T priority patent/ES2027457T3/es

1989-06-30 Priority to US07/373,886 priority patent/US5044005A/en

1989-06-30 Priority to JP1169694A priority patent/JP2840616B2/ja

1990-01-05 Publication of FR2633775A1 publication Critical patent/FR2633775A1/fr

1995-11-17 Application granted granted Critical

1995-11-17 Publication of FR2633775B1 publication Critical patent/FR2633775B1/fr

2008-07-01 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- 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
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
- H01J35/147—Spot size control

FR8808962A 1988-07-01 1988-07-01 Tube radiogene a cathode plane et a chauffage indirect Expired - Lifetime FR2633775B1 (fr)

Priority Applications (6)

Application Number	Priority Date	Filing Date	Title
FR8808962A FR2633775B1 (fr)	1988-07-01	1988-07-01	Tube radiogene a cathode plane et a chauffage indirect
EP89401761A EP0349387B1 (fr)	1988-07-01	1989-06-22	Tube radiogène à cathode plane et à chauffage indirect
DE8989401761T DE68900473D1 (de)	1988-07-01	1989-06-22	Roentgenroehre mit flacher kathode und indirekter heizung.
ES198989401761T ES2027457T3 (es)	1988-07-01	1989-06-22	Tubo de rayos x indirectamente calentado, con un catodo plano.
US07/373,886 US5044005A (en)	1988-07-01	1989-06-30	X-ray tube with a flat cathode and indirect heating
JP1169694A JP2840616B2 (ja)	1988-07-01	1989-06-30	平坦なカソードを有する間接加熱式ｘ線管

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8808962A FR2633775B1 (fr)	1988-07-01	1988-07-01	Tube radiogene a cathode plane et a chauffage indirect

Publications (2)

Publication Number	Publication Date
FR2633775A1 FR2633775A1 (fr)	1990-01-05
FR2633775B1 true FR2633775B1 (fr)	1995-11-17

Family

ID=9368000

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8808962A Expired - Lifetime FR2633775B1 (fr)	1988-07-01	1988-07-01	Tube radiogene a cathode plane et a chauffage indirect

Country Status (6)

Country	Link
US (1)	US5044005A (fr)
EP (1)	EP0349387B1 (fr)
JP (1)	JP2840616B2 (fr)
DE (1)	DE68900473D1 (fr)
ES (1)	ES2027457T3 (fr)
FR (1)	FR2633775B1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7280636B2 (en) *	2003-10-03	2007-10-09	Illinois Institute Of Technology	Device and method for producing a spatially uniformly intense source of x-rays
EP2407997B1 (fr) *	2006-10-17	2014-03-05	Koninklijke Philips N.V.	Émetteur pour tubes à rayons X et son procédé de chauffage
US20100002842A1 (en) *	2008-07-01	2010-01-07	Bruker Axs, Inc.	Cathode assembly for rapid electron source replacement in a rotating anode x-ray generator
WO2010067257A1 (fr) *	2008-12-08	2010-06-17	Philips Intellectual Property & Standards Gmbh	Source d'électrons et sa coupelle de cathode
US8477908B2 (en) *	2009-11-13	2013-07-02	General Electric Company	System and method for beam focusing and control in an indirectly heated cathode
US9711320B2 (en)	2014-04-29	2017-07-18	General Electric Company	Emitter devices for use in X-ray tubes
EP3518266A1 (fr)	2018-01-30	2019-07-31	Siemens Healthcare GmbH	Dispositif d'émission thermionique

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE416533C (de) *	1921-06-14	1925-07-17	Siemens & Halske Akt Ges	Gluehkathode fuer Hochvakuumentladungsroehren mit einem innerhalb eines allseitig geschlossenen, gehaeuseartigen Teiles angeordneten, durch elektrischen Strom erwaermten Heizkoerper
US3916202A (en) *	1974-05-03	1975-10-28	Gen Electric	Lens-grid system for electron tubes
JPS5178696A (en) *	1974-12-28	1976-07-08	Tokyo Shibaura Electric Co	x senkan
US4126805A (en) *	1975-10-18	1978-11-21	Emi Limited	X-ray tubes
JPS5330292A (en) *	1976-09-01	1978-03-22	Toshiba Corp	X-ray tube
FR2411487A1 (fr) *	1977-12-09	1979-07-06	Radiologie Cie Gle	Cathode pour tube radiogene a foyer fin et grande perveance, et tube radiogene comportant une telle cathode
JPS5568056A (en) *	1978-11-17	1980-05-22	Hitachi Ltd	X-ray tube
JPS55108158A (en) *	1979-02-13	1980-08-19	Hitachi Ltd	Cathode for x-ray tube
JPS60254538A (ja) *	1984-05-31	1985-12-16	Toshiba Corp	Ｘ線管装置

1988
- 1988-07-01 FR FR8808962A patent/FR2633775B1/fr not_active Expired - Lifetime
1989
- 1989-06-22 DE DE8989401761T patent/DE68900473D1/de not_active Expired - Lifetime
- 1989-06-22 EP EP89401761A patent/EP0349387B1/fr not_active Expired - Lifetime
- 1989-06-22 ES ES198989401761T patent/ES2027457T3/es not_active Expired - Lifetime
- 1989-06-30 US US07/373,886 patent/US5044005A/en not_active Expired - Lifetime
- 1989-06-30 JP JP1169694A patent/JP2840616B2/ja not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0349387B1 (fr)	1991-11-27
JPH0254849A (ja)	1990-02-23
FR2633775A1 (fr)	1990-01-05
JP2840616B2 (ja)	1998-12-24
EP0349387A1 (fr)	1990-01-03
US5044005A (en)	1991-08-27
ES2027457T3 (es)	1992-06-01
DE68900473D1 (de)	1992-01-09

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