JP2015519705A - 電熱平面陰極 - Google Patents
電熱平面陰極 Download PDFInfo
- Publication number
- JP2015519705A JP2015519705A JP2015511755A JP2015511755A JP2015519705A JP 2015519705 A JP2015519705 A JP 2015519705A JP 2015511755 A JP2015511755 A JP 2015511755A JP 2015511755 A JP2015511755 A JP 2015511755A JP 2015519705 A JP2015519705 A JP 2015519705A
- Authority
- JP
- Japan
- Prior art keywords
- foil
- substrate
- planar cathode
- tungsten
- cathode
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 239000011888 foil Substances 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052715 tantalum Inorganic materials 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 229910001080 W alloy Inorganic materials 0.000 claims description 5
- 238000005219 brazing Methods 0.000 claims description 5
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 1
- 239000011819 refractory material Substances 0.000 claims 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 abstract description 8
- 229910001362 Ta alloys Inorganic materials 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 2
- 238000003698 laser cutting Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Images
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
- H01J35/064—Details of the emitter, e.g. material or structure
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
- H01J35/147—Spot size control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/06—Cathode assembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
Landscapes
- Solid Thermionic Cathode (AREA)
- X-Ray Techniques (AREA)
Abstract
Description
Claims (18)
- 第1基板と、
箔および第2基板の積層板であって、前記箔および前記第2基板が一致する熱膨張係数を有し、前記積層板が前記第1基板に付着される、箔および第2基板の積層板と、
を含む平面陰極であって、
前記箔は、所定の幾何学的パターンに形成され、前記箔は、面積、電圧、電流、電力、および電子放出を含む群から選択された性能パラメータを有し、
前記幾何学的パターンと前記第1基板との間は、熱的に分離されている、平面陰極。 - 前記第1基板は、さらにアラインメント機構を含み、
前記アラインメント機構は、穴、機械的機構、および光学的機構を含む群から選択された、請求項1に記載の平面陰極。 - 前記箔および前記第2基板の前記積層板は、AlN基板にろう付けされたタンタル箔である、請求項1に記載の平面陰極。
- 前記所定の幾何学的パターンが、前記箔上のらせん状切込みである、請求項1に記載の平面陰極。
- 前記らせん状切込みが、曲線的な入口および曲線的な出口を含む、請求項4に記載の平面陰極。
- 前記箔が、タングステン・レニウム、トリエーテッド・タングステン、タングステン合金、ハフニウム、および6eV未満の仕事関数を有するタンタル・ベース材料を含む群から選択された、請求項1に記載の平面陰極。
- 前記箔が、6ev未満の電子仕事関数を示すようにコーティングされた、請求項1に記載の平面陰極。
- 箔を基板にろう付けして積層板を形成するステップと、
前記積層板の前記箔を所定の幾何学的パターンに形成するステップと、
前記積層板をヘッダーに搭載するステップと、
を含む平面陰極を製造する方法。 - 前記所定の幾何学的パターンがらせんである、請求項8に記載の方法。
- 前記らせんが、曲線的な入口および曲線的な出口を含む、請求項9に記載の方法。
- 前記箔が、タングステン・レニウム、トリエーテッド・タングステン、タングステン合金、およびその他の耐熱性物質ベースの熱電子放出材料を含む群から選択されるか、または低仕事関数放出コーティング加工された陰極である、請求項8に記載の方法。
- 前記箔が、タングステン・レニウム、トリエーテッド・タングステン、タングステン合金、ハフニウム、および6eV未満の仕事関数を有するタンタル・ベース材料を含む群から選択される、請求項8に記載の方法。
- 前記箔にコーティングを施して、6eV未満の電子仕事関数を示すようにするステップを含む、請求項8に記載の方法。
- 前記箔がAlN基板にろう付けされる、請求項8に記載の方法。
- 前記箔が粒子安定化箔を含む、請求項1に記載の平面陰極。
- 前記箔が粒子安定化タンタル箔を含む、請求項1に記載の平面陰極。
- 前記基板がAlN基板を含む、請求項16に記載の平面陰極。
- 前記箔が、タングステン・レニウム、トリエーテッド・タングステン、タングステン合金、ハフニウム、および6eV未満の仕事関数を有するタンタル・ベース材料から選択された、請求項1に記載の平面陰極。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/468,886 US8525411B1 (en) | 2012-05-10 | 2012-05-10 | Electrically heated planar cathode |
US13/468,886 | 2012-05-10 | ||
PCT/US2013/040553 WO2013170149A1 (en) | 2012-05-10 | 2013-05-10 | An electrically heated planar cathode |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015519705A true JP2015519705A (ja) | 2015-07-09 |
JP6238467B2 JP6238467B2 (ja) | 2017-11-29 |
Family
ID=48534493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015511755A Active JP6238467B2 (ja) | 2012-05-10 | 2013-05-10 | 電熱平面陰極 |
Country Status (6)
Country | Link |
---|---|
US (2) | US8525411B1 (ja) |
EP (1) | EP2847780B1 (ja) |
JP (1) | JP6238467B2 (ja) |
CN (1) | CN104272423B (ja) |
IN (1) | IN2014DN09573A (ja) |
WO (1) | WO2013170149A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112635275B (zh) * | 2020-12-09 | 2022-04-26 | 武汉联影医疗科技有限公司 | 平板发射体及x射线管 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005044606A (ja) * | 2003-07-28 | 2005-02-17 | Toshiba Corp | 放電電極及び放電灯 |
WO2010086653A2 (en) * | 2009-01-28 | 2010-08-05 | Cxr Limited | X-ray tube electron sources |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3290543A (en) * | 1963-06-03 | 1966-12-06 | Varian Associates | Grain oriented dispenser thermionic emitter for electron discharge device |
DE19510048C2 (de) * | 1995-03-20 | 1998-05-14 | Siemens Ag | Röntgenröhre |
US6259193B1 (en) * | 1998-06-08 | 2001-07-10 | General Electric Company | Emissive filament and support structure |
US6663982B1 (en) * | 2002-06-18 | 2003-12-16 | Sandia Corporation | Silver-hafnium braze alloy |
EP2188826B1 (en) | 2007-09-04 | 2013-02-20 | Thermo Scientific Portable Analytical Instruments Inc. | X-ray tube with enhanced small spot cathode and methods for manufacture thereof |
US20100239828A1 (en) | 2009-03-19 | 2010-09-23 | Cornaby Sterling W | Resistively heated small planar filament |
US8385506B2 (en) * | 2010-02-02 | 2013-02-26 | General Electric Company | X-ray cathode and method of manufacture thereof |
-
2012
- 2012-05-10 US US13/468,886 patent/US8525411B1/en active Active
-
2013
- 2013-05-10 EP EP13725519.6A patent/EP2847780B1/en active Active
- 2013-05-10 IN IN9573DEN2014 patent/IN2014DN09573A/en unknown
- 2013-05-10 CN CN201380022672.6A patent/CN104272423B/zh active Active
- 2013-05-10 WO PCT/US2013/040553 patent/WO2013170149A1/en active Application Filing
- 2013-05-10 JP JP2015511755A patent/JP6238467B2/ja active Active
- 2013-07-19 US US13/946,113 patent/US8766538B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005044606A (ja) * | 2003-07-28 | 2005-02-17 | Toshiba Corp | 放電電極及び放電灯 |
WO2010086653A2 (en) * | 2009-01-28 | 2010-08-05 | Cxr Limited | X-ray tube electron sources |
Also Published As
Publication number | Publication date |
---|---|
CN104272423B (zh) | 2017-10-03 |
WO2013170149A1 (en) | 2013-11-14 |
EP2847780A1 (en) | 2015-03-18 |
US8525411B1 (en) | 2013-09-03 |
EP2847780B1 (en) | 2023-04-19 |
IN2014DN09573A (ja) | 2015-07-17 |
JP6238467B2 (ja) | 2017-11-29 |
CN104272423A (zh) | 2015-01-07 |
US20130301804A1 (en) | 2013-11-14 |
US8766538B2 (en) | 2014-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10283311B2 (en) | X-ray source | |
JP5800578B2 (ja) | X線管 | |
US9029795B2 (en) | Radiation generating tube, and radiation generating device and apparatus including the tube | |
US7529345B2 (en) | Cathode header optic for x-ray tube | |
KR101212983B1 (ko) | 탄소나노튜브 실을 갖는 엑스레이 발생 장치 | |
US6771013B2 (en) | Low power schottky emitter | |
JP5787626B2 (ja) | X線管 | |
JP6238467B2 (ja) | 電熱平面陰極 | |
JP7493662B2 (ja) | 電子銃および電子銃の製造方法 | |
JP2009252444A (ja) | コレクタ電極及び電子管 | |
JP2008108540A (ja) | マグネトロン | |
JP4995648B2 (ja) | 重水素ランプ用ランプハウス及び光源装置 | |
US20240096583A1 (en) | Cathode heater assembly and method of manufacture | |
US20240021400A1 (en) | Planar filament with focused, central electron emission | |
TW201110181A (en) | Ion pipe | |
JP6124959B2 (ja) | X線管 | |
KR102061208B1 (ko) | 엑스선 소스 | |
CN117936360A (zh) | 放电灯 | |
WO2010032772A1 (ja) | マグネトロン、マグネトロン用陰極体の製造方法、及び、陰極体 | |
JP2011243421A (ja) | X線管装置 | |
JP2010015800A (ja) | Hidランプ | |
JP2013152948A (ja) | マグネトロン用陰極体の製造方法 | |
Gilgenbach et al. | High Current Cathodes Fabricated by KrF Laser Ablation | |
JPS6065586A (ja) | 希ガスイオンレ−ザ管 | |
JP2007294303A (ja) | 熱電子放出型電子銃 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20160506 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20170210 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170220 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20170417 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170517 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20171002 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20171030 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6238467 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |