JP6378473B2 - Ｘ線装置用の放射面 - Google Patents

Ｘ線装置用の放射面 Download PDF

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Publication number
JP6378473B2
JP6378473B2 JP2013187843A JP2013187843A JP6378473B2 JP 6378473 B2 JP6378473 B2 JP 6378473B2 JP 2013187843 A JP2013187843 A JP 2013187843A JP 2013187843 A JP2013187843 A JP 2013187843A JP 6378473 B2 JP6378473 B2 JP 6378473B2
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JP
Japan
Prior art keywords
shaped
gap
radiation area
electron emitter
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.)
Active
Application number
JP2013187843A
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English (en)
Japanese (ja)
Other versions
JP2014063734A (ja
JP2014063734A5 (enExample
Inventor
シー・ツァン
ジョセフ・ドナルド・ロバート
ケーリー・ショーン・ロジャーズ
イーサン・ジェイムズ・ウエストコット
マーク・アラン・フロンテラ
ヴァンス・スコット・ロビンソン
ユン・ゾォ
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 Co
Original Assignee
General Electric Co
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.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of JP2014063734A publication Critical patent/JP2014063734A/ja
Publication of JP2014063734A5 publication Critical patent/JP2014063734A5/ja
Application granted granted Critical
Publication of JP6378473B2 publication Critical patent/JP6378473B2/ja
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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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
    • 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
    • H01J2235/00—X-ray tubes
    • H01J2235/12—Cooling
    • H01J2235/1212—Cooling of the cathode

Landscapes

  • X-Ray Techniques (AREA)
  • Solid Thermionic Cathode (AREA)
JP2013187843A 2012-09-14 2013-09-11 Ｘ線装置用の放射面 Active JP6378473B2 (ja)

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 JP2014063734A5 (enExample) 2016-10-20
JP6378473B2 true 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 (enExample)
JP (1) JP6378473B2 (enExample)
DE (1) DE102013110166A1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
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

Family Cites Families (17)

* Cited by examiner, † Cited by third party
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
JP5258753B2 (ja) * 2006-05-11 2013-08-07 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 医療ｘ線照射に対するエミッタ損傷時の緊急動作モードを含むエミッタデザイン
EP2407997B1 (en) 2006-10-17 2014-03-05 Koninklijke Philips N.V. 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
CN101681778B (zh) * 2007-06-01 2012-09-26 皇家飞利浦电子股份有限公司 具有临时固定杆的x射线发射箔片及其安装方法
US8183756B2 (en) * 2007-07-24 2012-05-22 Koninklijke Philips Electronics Nv Thermionic electron emitter, method for preparing same and X-ray source including same
JP5200103B2 (ja) 2007-07-24 2013-05-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 熱イオン電子エミッタ及びそれを含むｘ線源
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

Also Published As

Publication number Publication date
JP2014063734A (ja) 2014-04-10
DE102013110166A1 (de) 2014-05-22
US20140079187A1 (en) 2014-03-20
US9251987B2 (en) 2016-02-02

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