JP5200103B2 - 熱イオン電子エミッタ及びそれを含むx線源 - Google Patents
熱イオン電子エミッタ及びそれを含むx線源 Download PDFInfo
- Publication number
- JP5200103B2 JP5200103B2 JP2010517518A JP2010517518A JP5200103B2 JP 5200103 B2 JP5200103 B2 JP 5200103B2 JP 2010517518 A JP2010517518 A JP 2010517518A JP 2010517518 A JP2010517518 A JP 2010517518A JP 5200103 B2 JP5200103 B2 JP 5200103B2
- Authority
- JP
- Japan
- Prior art keywords
- electron emitter
- radiation
- thermionic electron
- radiation surface
- surrounding
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic 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
Landscapes
- X-Ray Techniques (AREA)
Description
Claims (10)
- 加熱可能な平坦な放射面を含む内側部分と、
放射面を実質的に取り囲む包囲面を含む外側部分と、
前記放射面を熱イオン電子放射温度に加熱する加熱手段とを有し、
前記外側部分は前記放射面から離れた接続領域で前記内側部分に機械的に接続され、
前記包囲面は前記接続領域から離れた絶縁領域で前記放射面から熱的に絶縁されている、熱イオン電子エミッタ - 前記包囲面は前記絶縁領域の前記放射面からギャップだけ横方向に離れた、
請求項1に記載の熱イオン電子エミッタ。 - 前記加熱手段は、前記放射面に対して反対の位置にある、前記内側部分に配置された2つのエミッタ端子であって、前記エミッタ端子に電圧を印加することにより前記放射面に加熱電流を生じるエミッタ端子を有する、
請求項1または2に記載の熱イオン電子エミッタ。 - 前記外側部分はエミッタ端子に対して前記放射面と反対の接続領域で前記内側部分に機械的に接続された、
請求項3に記載の熱イオン電子エミッタ。 - 前記加熱手段は、前記放射面に向けられたレーザビーム源と電子ビーム源のうち一方を有する、
請求項1または2に記載の熱イオン電子エミッタ。 - 前記内側部分と前記外側部分は、金属、金属合金、金属サンドイッチ複合材のうち1つである同一材料から一体構成される、
請求項1ないし5いずれか一項に記載の熱イオン電子エミッタ。 - 前記内側部分と前記外側部分は別々のデバイスとして構成され、前記外側部分は前記放射面から離れた前記内側部分に取り付けられる、
請求項1ないし5いずれか一項に記載の熱イオン電子エミッタ。 - 前記放射面と前記包囲面は同一面内に配置される、
請求項1ないし7いずれか一項に記載の熱イオン電子エミッタ。 - 前記包囲面は前記放射面の平面でないところまで延在する、
請求項1ないし7いずれか一項に記載の熱イオン電子エミッタ。 - 請求項1ないし9いずれか一項に記載の熱イオン電子エミッタを含むX線源。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07113050.4 | 2007-07-24 | ||
EP07113050 | 2007-07-24 | ||
PCT/IB2008/052868 WO2009013677A1 (en) | 2007-07-24 | 2008-07-17 | Thermionic electron emitter and x-ray source including same |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010534395A JP2010534395A (ja) | 2010-11-04 |
JP5200103B2 true JP5200103B2 (ja) | 2013-05-15 |
Family
ID=40039757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010517518A Expired - Fee Related JP5200103B2 (ja) | 2007-07-24 | 2008-07-17 | 熱イオン電子エミッタ及びそれを含むx線源 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8254526B2 (ja) |
EP (1) | EP2174335B1 (ja) |
JP (1) | JP5200103B2 (ja) |
CN (1) | CN101755321B (ja) |
WO (1) | WO2009013677A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017500721A (ja) * | 2013-10-29 | 2017-01-05 | ヴァリアン メディカル システムズ インコーポレイテッド | 放出特性を調整できる平板エミッタを有し、かつ磁気走査及び磁気収束を行うx線管 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8077829B2 (en) * | 2008-09-25 | 2011-12-13 | Varian Medical Systems, Inc. | Electron emitter apparatus and method of assembly |
US8385506B2 (en) * | 2010-02-02 | 2013-02-26 | General Electric Company | X-ray cathode and method of manufacture thereof |
US8938050B2 (en) | 2010-04-14 | 2015-01-20 | General Electric Company | Low bias mA modulation for X-ray tubes |
US8503494B2 (en) * | 2011-04-05 | 2013-08-06 | Microsoft Corporation | Thermal management system |
US9466455B2 (en) * | 2011-06-16 | 2016-10-11 | Varian Medical Systems, Inc. | Electron emitters for x-ray tubes |
EP2852964B1 (en) | 2012-05-22 | 2017-02-08 | Koninklijke Philips N.V. | Cathode filament assembly |
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 |
CN104620350B (zh) * | 2012-09-12 | 2017-02-15 | 株式会社岛津制作所 | X射线管装置 |
US9251987B2 (en) | 2012-09-14 | 2016-02-02 | General Electric Company | Emission surface for an X-ray device |
US9202663B2 (en) * | 2012-12-05 | 2015-12-01 | Shimadzu Corporation | Flat filament for an X-ray tube, and an X-ray tube |
US9355806B2 (en) * | 2013-07-18 | 2016-05-31 | Schlumberger Technology Corporation | Cathode assembly for use in a radiation generator |
US9711320B2 (en) * | 2014-04-29 | 2017-07-18 | General Electric Company | Emitter devices for use in X-ray tubes |
DE102014211688A1 (de) | 2014-06-18 | 2015-12-24 | Siemens Aktiengesellschaft | Flachemitter |
US9711321B2 (en) * | 2014-12-30 | 2017-07-18 | General Electric Company | Low aberration, high intensity electron beam for X-ray tubes |
CN105185673B (zh) * | 2015-07-15 | 2018-09-04 | 国家纳米科学中心 | 一种光致电子发射源及其制造方法、电子发射装置 |
JP6477336B2 (ja) * | 2015-07-31 | 2019-03-06 | 株式会社島津製作所 | 陰極の製造方法、陰極およびx線管装置 |
US9953797B2 (en) * | 2015-09-28 | 2018-04-24 | General Electric Company | Flexible flat emitter for X-ray tubes |
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 |
US10998160B2 (en) * | 2018-08-21 | 2021-05-04 | General Electric Company | Cathode emitter to emitter attachment system and method |
US11094493B2 (en) | 2019-08-01 | 2021-08-17 | Lockheed Martin Corporation | Emitter structures for enhanced thermionic emission |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1211725B (de) | 1963-09-27 | 1966-03-03 | Telefunken Patent | Indirekt geheizte Kathode fuer eine elektrische Entladungsroehre |
JPH10321119A (ja) * | 1997-05-15 | 1998-12-04 | Rigaku Corp | 熱電子放出フィラメントおよび熱電子放出装置 |
US6259193B1 (en) * | 1998-06-08 | 2001-07-10 | General Electric Company | Emissive filament and support structure |
DE10016125A1 (de) * | 1999-04-29 | 2000-11-02 | Siemens Ag | Lebensdaueroptimierter Emitter |
US20020191746A1 (en) * | 2001-06-19 | 2002-12-19 | Mark Dinsmore | X-ray source for materials analysis systems |
DE10135995C2 (de) | 2001-07-24 | 2003-10-30 | Siemens Ag | Direktgeheizter thermionischer Flachemitter |
AU2003208519A1 (en) * | 2002-04-02 | 2003-10-13 | Koninklijke Philips Electronics N.V. | A device for generating x-rays having a heat absorbing member |
-
2008
- 2008-07-17 US US12/670,137 patent/US8254526B2/en not_active Expired - Fee Related
- 2008-07-17 JP JP2010517518A patent/JP5200103B2/ja not_active Expired - Fee Related
- 2008-07-17 WO PCT/IB2008/052868 patent/WO2009013677A1/en active Application Filing
- 2008-07-17 CN CN2008801000196A patent/CN101755321B/zh not_active Expired - Fee Related
- 2008-07-17 EP EP08789334.3A patent/EP2174335B1/en not_active Not-in-force
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017500721A (ja) * | 2013-10-29 | 2017-01-05 | ヴァリアン メディカル システムズ インコーポレイテッド | 放出特性を調整できる平板エミッタを有し、かつ磁気走査及び磁気収束を行うx線管 |
Also Published As
Publication number | Publication date |
---|---|
EP2174335B1 (en) | 2015-09-09 |
US8254526B2 (en) | 2012-08-28 |
WO2009013677A1 (en) | 2009-01-29 |
CN101755321A (zh) | 2010-06-23 |
JP2010534395A (ja) | 2010-11-04 |
US20100195797A1 (en) | 2010-08-05 |
EP2174335A1 (en) | 2010-04-14 |
CN101755321B (zh) | 2013-07-17 |
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