JPS48100087A - - Google Patents
Info
- Publication number
- JPS48100087A JPS48100087A JP47113927A JP11392772A JPS48100087A JP S48100087 A JPS48100087 A JP S48100087A JP 47113927 A JP47113927 A JP 47113927A JP 11392772 A JP11392772 A JP 11392772A JP S48100087 A JPS48100087 A JP S48100087A
- Authority
- JP
- Japan
- 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.)
- Pending
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/06—Cathode assembly
- H01J2235/068—Multi-cathode assembly
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22913672A | 1972-02-24 | 1972-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS48100087A true JPS48100087A (de) | 1973-12-18 |
Family
ID=22859964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47113927A Pending JPS48100087A (de) | 1972-02-24 | 1972-11-15 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3783333A (de) |
| JP (1) | JPS48100087A (de) |
| CA (1) | CA959108A (de) |
| DE (1) | DE2231970A1 (de) |
| FR (1) | FR2172949B1 (de) |
| NL (1) | NL7209611A (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4104526A (en) * | 1973-04-24 | 1978-08-01 | Albert Richard D | Grid-cathode controlled X-ray tube |
| DE3008304A1 (de) * | 1980-03-04 | 1981-09-17 | Siemens AG, 1000 Berlin und 8000 München | Roentgenroehre mit zwei kathodenwendeln |
| US4689809A (en) * | 1982-11-23 | 1987-08-25 | Elscint, Inc. | X-ray tube having an adjustable focal spot |
| US4685118A (en) * | 1983-11-10 | 1987-08-04 | Picker International, Inc. | X-ray tube electron beam switching and biasing method and apparatus |
| US4764947A (en) * | 1985-12-04 | 1988-08-16 | The Machlett Laboratories, Incorporated | Cathode focusing arrangement |
| US5007074A (en) * | 1989-07-25 | 1991-04-09 | Picker International, Inc. | X-ray tube anode focusing by low voltage bias |
| DE4230880A1 (de) * | 1992-09-16 | 1994-03-17 | Philips Patentverwaltung | Röntgengenerator zur Speisung einer Röntgenröhre mit wenigstens zwei Elektronenquellen |
| US5511105A (en) * | 1993-07-12 | 1996-04-23 | Siemens Aktiengesellschaft | X-ray tube with multiple differently sized focal spots and method for operating same |
| DE19504305A1 (de) * | 1995-02-09 | 1996-08-14 | Siemens Ag | Röntgenröhre |
| US5844963A (en) * | 1997-08-28 | 1998-12-01 | Varian Associates, Inc. | Electron beam superimposition method and apparatus |
| 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 |
| US9524845B2 (en) | 2012-01-18 | 2016-12-20 | Varian Medical Systems, Inc. | X-ray tube cathode with magnetic electron beam steering |
| JP6638966B2 (ja) * | 2016-06-20 | 2020-02-05 | キヤノン電子管デバイス株式会社 | Ｘ線管 |
| JP6951027B2 (ja) * | 2017-08-14 | 2021-10-20 | キヤノン電子管デバイス株式会社 | Ｘ線管 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB232159A (en) * | 1924-04-11 | 1925-10-08 | Huth Erich F Gmbh | Improvements in and relating to thermionic tubes |
| US3018398A (en) * | 1958-10-27 | 1962-01-23 | Dunlee Corp | X-ray generator |
| US3178578A (en) * | 1961-03-03 | 1965-04-13 | High Voltage Engineering Corp | Electron pulser for an x-ray tube to produce a pulsed beam of x-rays |
| US3250916A (en) * | 1963-06-14 | 1966-05-10 | Machlett Lab Inc | Stereo x-ray device |
| US3433955A (en) * | 1966-09-26 | 1969-03-18 | Picker Corp | X-ray generator with emission control arrangement within the focusing cup |
| US3549931A (en) * | 1968-12-04 | 1970-12-22 | Torr Lab Inc | X-ray transmissive window assembly |
| US3660712A (en) * | 1970-12-09 | 1972-05-02 | Atomic Energy Commission | Electrode structure for controlling electron flow with high transmission efficiency |
| US3665236A (en) * | 1970-12-09 | 1972-05-23 | Atomic Energy Commission | Electrode structure for controlling electron flow with high transmission efficiency |
-
1972
- 1972-02-24 US US00229136A patent/US3783333A/en not_active Expired - Lifetime
- 1972-06-14 CA CA144,732A patent/CA959108A/en not_active Expired
- 1972-06-29 DE DE2231970A patent/DE2231970A1/de active Pending
- 1972-07-12 NL NL7209611A patent/NL7209611A/xx unknown
- 1972-09-14 FR FR7232594A patent/FR2172949B1/fr not_active Expired
- 1972-11-15 JP JP47113927A patent/JPS48100087A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2231970A1 (de) | 1973-08-30 |
| FR2172949A1 (de) | 1973-10-05 |
| FR2172949B1 (de) | 1976-05-21 |
| NL7209611A (de) | 1973-08-28 |
| CA959108A (en) | 1974-12-10 |
| US3783333A (en) | 1974-01-01 |