JP2014063734A5 - - Google Patents
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- Publication number
- JP2014063734A5 JP2014063734A5 JP2013187843A JP2013187843A JP2014063734A5 JP 2014063734 A5 JP2014063734 A5 JP 2014063734A5 JP 2013187843 A JP2013187843 A JP 2013187843A JP 2013187843 A JP2013187843 A JP 2013187843A JP 2014063734 A5 JP2014063734 A5 JP 2014063734A5
- Authority
- JP
- Japan
- Prior art keywords
- electron emitter
- radiation area
- gap
- shaped
- disk
- Prior art date
- 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.)
- Granted
Links
- 230000005855 radiation Effects 0.000 claims 29
- 238000010894 electron beam technology Methods 0.000 claims 6
- WHJFNYXPKGDKBB-UHFFFAOYSA-N hafnium;methane Chemical compound C.[Hf] WHJFNYXPKGDKBB-UHFFFAOYSA-N 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 239000010937 tungsten Substances 0.000 claims 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/619,587 US9251987B2 (en) | 2012-09-14 | 2012-09-14 | Emission surface for an X-ray device |
| US13/619,587 | 2012-09-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014063734A JP2014063734A (ja) | 2014-04-10 |
| JP2014063734A5 true JP2014063734A5 (https=) | 2016-10-20 |
| JP6378473B2 JP6378473B2 (ja) | 2018-08-22 |
Family
ID=50274452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013187843A Active JP6378473B2 (ja) | 2012-09-14 | 2013-09-11 | Ｘ線装置用の放射面 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9251987B2 (https=) |
| JP (1) | JP6378473B2 (https=) |
| DE (1) | DE102013110166A1 (https=) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9887061B2 (en) * | 2012-09-12 | 2018-02-06 | Shimadzu Corporation | X-ray tube device and method for using X-ray tube device |
| US9202663B2 (en) * | 2012-12-05 | 2015-12-01 | Shimadzu Corporation | Flat filament for an X-ray tube, and an X-ray tube |
| US9711320B2 (en) * | 2014-04-29 | 2017-07-18 | General Electric Company | Emitter devices for use in X-ray tubes |
| US9711321B2 (en) | 2014-12-30 | 2017-07-18 | General Electric Company | Low aberration, high intensity electron beam for X-ray tubes |
| US9953797B2 (en) * | 2015-09-28 | 2018-04-24 | General Electric Company | Flexible flat emitter for X-ray tubes |
| US9928985B2 (en) * | 2016-02-29 | 2018-03-27 | General Electric Company | Robust emitter for minimizing damage from ion bombardment |
| JP6744116B2 (ja) * | 2016-04-01 | 2020-08-19 | キヤノン電子管デバイス株式会社 | エミッター及びｘ線管 |
| US10636608B2 (en) | 2017-06-05 | 2020-04-28 | General Electric Company | Flat emitters with stress compensation features |
| EP3496127A1 (en) * | 2017-12-07 | 2019-06-12 | Koninklijke Philips N.V. | Cathode assembly component for x-ray imaging |
| USD1058525S1 (en) * | 2023-04-06 | 2025-01-21 | GE Precision Healthcare LLC | Cathode shield |
| US20250292986A1 (en) * | 2024-03-18 | 2025-09-18 | GE Precision Healthcare LLC | Flat emitter with compliant supported end |
| WO2026003717A1 (de) * | 2024-06-28 | 2026-01-02 | Helmut Fischer GmbH Institut für Elektronik und Messtechnik | Filament und kathode für eine röntgenröhre |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB524240A (en) | 1939-01-25 | 1940-08-01 | Werner Ehrenberg | Improvements in or relating to cathodes for electron discharge devices |
| US4795940A (en) * | 1987-10-14 | 1989-01-03 | The United States Of America As Represented By The United States Department Of Energy | Large area directly heated lanthanum hexaboride cathode structure having predetermined emission profile |
| US5343112A (en) * | 1989-01-18 | 1994-08-30 | Balzers Aktiengesellschaft | Cathode arrangement |
| US6115453A (en) | 1997-08-20 | 2000-09-05 | Siemens Aktiengesellschaft | Direct-Heated flats emitter for emitting an electron beam |
| DE10016125A1 (de) | 1999-04-29 | 2000-11-02 | Siemens Ag | Lebensdaueroptimierter Emitter |
| DE10029253C1 (de) * | 2000-06-14 | 2001-10-25 | Siemens Ag | Direktgeheizter thermionischer Flachemitter |
| DE10135995C2 (de) * | 2001-07-24 | 2003-10-30 | Siemens Ag | Direktgeheizter thermionischer Flachemitter |
| EP2341524B1 (en) * | 2006-05-11 | 2014-07-02 | Philips Intellectual Property & Standards GmbH | Emitter design including emergency operation mode in case of emitter-damage for medical x-ray application |
| EP2084728A2 (en) | 2006-10-17 | 2009-08-05 | Philips Intellectual Property & Standards GmbH | Emitter for x-ray tubes and heating method therefore |
| US20080187093A1 (en) * | 2007-02-06 | 2008-08-07 | John Scott Price | X-ray generation using secondary emission electron source |
| WO2008146248A1 (en) * | 2007-06-01 | 2008-12-04 | Philips Intellectual Property & Standards Gmbh | X-ray emitting foil with temporary fixing bars and preparing method therefore |
| CN101779265B (zh) | 2007-07-24 | 2013-01-02 | 皇家飞利浦电子股份有限公司 | 热电子发射器、制备其的方法和包括其的x射线源 |
| EP2174335B1 (en) | 2007-07-24 | 2015-09-09 | Philips Intellectual Property & Standards GmbH | Thermionic electron emitter and x-ray source including same |
| US7801277B2 (en) | 2008-03-26 | 2010-09-21 | General Electric Company | Field emitter based electron source with minimized beam emittance growth |
| US7924983B2 (en) * | 2008-06-30 | 2011-04-12 | Varian Medical Systems, Inc. | Thermionic emitter designed to control electron beam current profile in two dimensions |
| JP2011040272A (ja) * | 2009-08-11 | 2011-02-24 | Shimadzu Corp | 平板フィラメントおよびそれを用いたｘ線管装置 |
| CA2755012C (en) * | 2010-10-14 | 2017-10-31 | Camfil Farr (Canada) Inc. | Turbo screen |
-
2012
- 2012-09-14 US US13/619,587 patent/US9251987B2/en active Active
-
2013
- 2013-09-11 JP JP2013187843A patent/JP6378473B2/ja active Active
- 2013-09-16 DE DE102013110166.6A patent/DE102013110166A1/de not_active Withdrawn
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