ATE3797T1 - Kathodenanordnung fuer eine roentgenroehre. - Google Patents
Kathodenanordnung fuer eine roentgenroehre.Info
- Publication number
- ATE3797T1 ATE3797T1 AT81100096T AT81100096T ATE3797T1 AT E3797 T1 ATE3797 T1 AT E3797T1 AT 81100096 T AT81100096 T AT 81100096T AT 81100096 T AT81100096 T AT 81100096T AT E3797 T1 ATE3797 T1 AT E3797T1
- Authority
- AT
- Austria
- Prior art keywords
- ray tube
- cathode arrangement
- heater coil
- cathode cup
- cathode
- Prior art date
Links
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
- H01J35/066—Details of electron optical components, e.g. cathode cups
Landscapes
- X-Ray Techniques (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803001141 DE3001141A1 (de) | 1980-01-14 | 1980-01-14 | Kathodenanordnung fuer eine roentgenroehre |
EP81100096A EP0032385B1 (de) | 1980-01-14 | 1981-01-08 | Kathodenanordnung für eine Röntgenröhre |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE3797T1 true ATE3797T1 (de) | 1983-06-15 |
Family
ID=6092021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT81100096T ATE3797T1 (de) | 1980-01-14 | 1981-01-08 | Kathodenanordnung fuer eine roentgenroehre. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4373144A (de) |
EP (1) | EP0032385B1 (de) |
AT (1) | ATE3797T1 (de) |
DE (2) | DE3001141A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL70210A (en) * | 1982-11-23 | 1987-10-20 | Elscint Ltd | X-ray tube with adjustable focal spot |
US4689809A (en) * | 1982-11-23 | 1987-08-25 | Elscint, Inc. | X-ray tube having an adjustable focal spot |
FR2538948B3 (fr) * | 1982-12-30 | 1985-10-18 | Thomson Csf | Tube a rayons x a balayage |
US4685118A (en) * | 1983-11-10 | 1987-08-04 | Picker International, Inc. | X-ray tube electron beam switching and biasing method and apparatus |
FR2572215A1 (fr) * | 1984-10-19 | 1986-04-25 | Thomson Cgr | Dispositif radiologique a asservissement de position de foyer suivant un axe d'asservissement donne |
US4764947A (en) * | 1985-12-04 | 1988-08-16 | The Machlett Laboratories, Incorporated | Cathode focusing arrangement |
NL8603264A (nl) * | 1986-12-23 | 1988-07-18 | Philips Nv | Roentgenbuis met een ringvormig focus. |
US5007074A (en) * | 1989-07-25 | 1991-04-09 | Picker International, Inc. | X-ray tube anode focusing by low voltage bias |
IL91119A0 (en) * | 1989-07-26 | 1990-03-19 | Elscint Ltd | Arrangement for controlling focal spot position in x-ray tubes |
FR2650703B1 (fr) * | 1989-08-07 | 1991-10-11 | Gen Electric Cgr | Cathode de tube a rayons x et tube ainsi obtenu |
DE4100297A1 (de) * | 1991-01-08 | 1992-07-09 | Philips Patentverwaltung | Roentgenroehre |
FR2675629B1 (fr) * | 1991-04-17 | 1997-05-16 | Gen Electric Cgr | Cathode pour tube a rayons x et tube ainsi obtenu. |
FR2687504B1 (fr) * | 1992-02-13 | 1994-04-08 | General Electric Cgr | Perfectionnements aux tubes a rayons x. |
DE19510048C2 (de) * | 1995-03-20 | 1998-05-14 | Siemens Ag | Röntgenröhre |
DE19914739C1 (de) * | 1999-03-31 | 2000-08-03 | Siemens Ag | Kathode mit direkt geheitzem Flächenemitter |
US6438207B1 (en) | 1999-09-14 | 2002-08-20 | Varian Medical Systems, Inc. | X-ray tube having improved focal spot control |
US7257194B2 (en) * | 2004-02-09 | 2007-08-14 | Varian Medical Systems Technologies, Inc. | Cathode head with focal spot control |
DE102009009159A1 (de) * | 2009-02-16 | 2010-10-14 | Siemens Aktiengesellschaft | Fokuskopf einer Röntgenröhre und zugehöriges Betriebsverfahren |
US9524845B2 (en) | 2012-01-18 | 2016-12-20 | Varian Medical Systems, Inc. | X-ray tube cathode with magnetic electron beam steering |
US8831178B2 (en) | 2012-07-03 | 2014-09-09 | General Electric Company | Apparatus and method of manufacturing a thermally stable cathode in an X-ray tube |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2068287A (en) * | 1933-10-14 | 1937-01-19 | Gabor Denes | Electric lamp |
US2110604A (en) * | 1935-08-24 | 1938-03-08 | Westinghouse Electric & Mfg Co | Double focus X-ray tube |
US2215426A (en) * | 1939-04-07 | 1940-09-17 | Machlett Lab Inc | X-ray tube |
US3646379A (en) * | 1970-05-18 | 1972-02-29 | Machlett Lab Inc | X-ray tube having controllable focal spot size |
US3649861A (en) * | 1970-09-09 | 1972-03-14 | Picker Corp | Double focus x-ray tube |
DE2249365C3 (de) * | 1972-10-09 | 1983-11-17 | Siemens AG, 1000 Berlin und 8000 München | Röntgengerät mit einer der Glühkathode der Röntgenröhre vorgelagerten Rechteckblende, an der eine einstellbare Spannung liegt |
US4266133A (en) * | 1979-11-08 | 1981-05-05 | Siemens Corporation | Multiple focus X-ray generator |
-
1980
- 1980-01-14 DE DE19803001141 patent/DE3001141A1/de not_active Withdrawn
- 1980-12-17 US US06/217,216 patent/US4373144A/en not_active Expired - Fee Related
-
1981
- 1981-01-08 AT AT81100096T patent/ATE3797T1/de active
- 1981-01-08 DE DE8181100096T patent/DE3160422D1/de not_active Expired
- 1981-01-08 EP EP81100096A patent/EP0032385B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4373144A (en) | 1983-02-08 |
EP0032385B1 (de) | 1983-06-15 |
EP0032385A1 (de) | 1981-07-22 |
DE3001141A1 (de) | 1981-07-16 |
DE3160422D1 (en) | 1983-07-21 |
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