JP5424098B2 - 電子放出体およびx線放射装置 - Google Patents
電子放出体およびx線放射装置 Download PDFInfo
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- JP5424098B2 JP5424098B2 JP2009149991A JP2009149991A JP5424098B2 JP 5424098 B2 JP5424098 B2 JP 5424098B2 JP 2009149991 A JP2009149991 A JP 2009149991A JP 2009149991 A JP2009149991 A JP 2009149991A JP 5424098 B2 JP5424098 B2 JP 5424098B2
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- substrate
- electron emitter
- carbon
- carbon film
- concave surface
- 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.)
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- 238000004846 x-ray emission Methods 0.000 title claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 42
- 229910052799 carbon Inorganic materials 0.000 claims description 35
- 239000000758 substrate Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000010894 electron beam technology Methods 0.000 description 16
- 239000007789 gas Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 239000002041 carbon nanotube Substances 0.000 description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 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
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/065—Field emission, photo emission or secondary emission 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
- H01J35/08—Anodes; Anti cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/30—Cold cathodes
- H01J2201/304—Field emission cathodes
- H01J2201/30446—Field emission cathodes characterised by the emitter material
- H01J2201/30453—Carbon types
- H01J2201/30469—Carbon nanotubes (CNTs)
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/08—Targets (anodes) and X-ray converters
- H01J2235/081—Target material
Landscapes
- Cold Cathode And The Manufacture (AREA)
Description
尚、前記凹面の形状としては1点に焦点を結ぶものが考えられ、この場合には前記突起の軸芯は前記焦点に向かって伸びる。
即ち、X線放射装置は減圧状態(1〜1000torr)に維持されたケース6内に上記電子放出体を陰極(エミッタ)として挿入し、焦点Fの位置にタングステンなどの金属ターゲット61を配置している。この金属ターゲット61はケース6に形成した窓部を機密に封止している。
2…炭素膜、21…炭素膜を構成する突起、22…突起を構成する隆起部、23…突起を構成する針状部
3…ガード電極
4…研磨棒
5…プラズマCVD装置、51、52…平行平板電極、53…直流電源、54…真空排気系、55…ガス導入系、61…金属ターゲット
R1…ガード電極の外周側の曲率半径、R2…ガード電極の炭素膜側の曲率半径、F…焦点
Claims (3)
- 基板の表面に電圧を印加することで電子を放出する炭素膜を形成した電子放出体であって、前記基板の表面は凹面とされ、前記炭素膜は炭素からなる突起が面状に多数個展開して構成され、前記基板の周縁にガード電極が設けられ、このガード電極は前記炭素膜よりも突出するとともに外周側の曲率半径が炭素膜側の曲率半径以上とされ、前記凹面は一定の曲率半径を有し、平行な光線が入社したと仮定すると収束する焦点が存在することを特徴とする電子放出体。
- 請求項1に記載の電子放出体において、前記炭素からなる突起は基板表面に形成される隆起部とこの隆起部から伸びる針状部からなり、この針状部はグラフェンシートが斜めに巻回された中空状をなすことを特徴とする電子放出体。
- 請求項1または請求項2に記載の電子放出体を陰極とし、金属ターゲットを陽極とし、この陽極を前記基板の凹面の焦点位置に配置することを特徴とするX線放射装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009149991A JP5424098B2 (ja) | 2009-06-24 | 2009-06-24 | 電子放出体およびx線放射装置 |
EP10791766.8A EP2469575A4 (en) | 2009-06-24 | 2010-02-23 | ELECTRON EMISSION BODY AND X-RAY EQUIPMENT |
AU2010264005A AU2010264005A1 (en) | 2009-06-24 | 2010-02-23 | Electron emitting body and X-ray emitting device |
KR1020127002362A KR20120060198A (ko) | 2009-06-24 | 2010-02-23 | 전자 방출체 및 x선 방사장치 |
PCT/JP2010/001204 WO2010150438A1 (ja) | 2009-06-24 | 2010-02-23 | 電子放出体およびx線放射装置 |
CN201080037145.9A CN102576634A (zh) | 2009-06-24 | 2010-02-23 | 电子发射体以及x射线放射装置 |
US13/380,741 US20120194057A1 (en) | 2009-06-24 | 2010-02-23 | Electron emitting body and x-ray emitting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009149991A JP5424098B2 (ja) | 2009-06-24 | 2009-06-24 | 電子放出体およびx線放射装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011008998A JP2011008998A (ja) | 2011-01-13 |
JP5424098B2 true JP5424098B2 (ja) | 2014-02-26 |
Family
ID=43386229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009149991A Active JP5424098B2 (ja) | 2009-06-24 | 2009-06-24 | 電子放出体およびx線放射装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120194057A1 (ja) |
EP (1) | EP2469575A4 (ja) |
JP (1) | JP5424098B2 (ja) |
KR (1) | KR20120060198A (ja) |
CN (1) | CN102576634A (ja) |
AU (1) | AU2010264005A1 (ja) |
WO (1) | WO2010150438A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5044005B2 (ja) * | 2010-11-08 | 2012-10-10 | マイクロXジャパン株式会社 | 電界放射装置 |
JP6039314B2 (ja) * | 2012-08-30 | 2016-12-07 | キヤノン株式会社 | 撮像装置および撮像方法 |
CN103219212B (zh) * | 2013-05-08 | 2015-06-10 | 重庆启越涌阳微电子科技发展有限公司 | 石墨烯作为x射线管阴极及其x射线管 |
CN104465280B (zh) * | 2014-12-05 | 2017-01-25 | 中国科学院深圳先进技术研究院 | 一种用于ct成像的碳纳米射线管 |
JP6617368B2 (ja) * | 2015-06-08 | 2019-12-11 | 国立研究開発法人理化学研究所 | 電子源の作製方法 |
JP6206541B1 (ja) | 2016-06-13 | 2017-10-04 | 株式会社明電舎 | 電界放射装置および改質処理方法 |
JP6206546B1 (ja) | 2016-06-23 | 2017-10-04 | 株式会社明電舎 | 電界放射装置および改質処理方法 |
JP6226033B1 (ja) * | 2016-06-24 | 2017-11-08 | 株式会社明電舎 | 電界放射装置および電界放射方法 |
CN111613496B (zh) * | 2020-06-08 | 2022-12-09 | 东南大学 | 一种石墨烯覆膜钡钨阴极及其制备方法 |
CN114709283B (zh) * | 2022-03-15 | 2024-10-01 | 太一光伏科技(常州)有限公司 | 一种双面prec电池的覆膜装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000133117A (ja) | 1998-08-18 | 2000-05-12 | Nec Corp | 電界放出型冷陰極装置およびその製造方法 |
JP2000100317A (ja) | 1998-09-18 | 2000-04-07 | Noritake Co Ltd | 電界電子放出装置 |
WO2002007180A1 (fr) | 2000-07-19 | 2002-01-24 | Matsushita Electric Industrial Co., Ltd. | Element a emission d'electrons et son procede de fabrication; affichage utilisant un tel element |
JP2002093307A (ja) * | 2000-09-14 | 2002-03-29 | Canon Inc | 電子放出素子及び電子放出素子の製造方法及び電子源及び画像形成装置 |
JP2003016913A (ja) * | 2001-07-02 | 2003-01-17 | Canon Inc | 電子放出素子,電子源及び画像形成装置並びに電子放出素子の製造方法 |
KR100438835B1 (ko) * | 2001-12-18 | 2004-07-05 | 삼성에스디아이 주식회사 | 기판에서 들뜬 구조물의 형성 방법 및 이를 적용한 들뜬구조의 게이트 전극 및 fed 제조방법 |
JP2005174715A (ja) * | 2003-12-10 | 2005-06-30 | Quantum 14:Kk | 電子線源およびx線源 |
KR20050111705A (ko) * | 2004-05-22 | 2005-11-28 | 삼성에스디아이 주식회사 | 전계방출소자와, 이를 적용한 전계방출 표시소자 |
JP4917758B2 (ja) | 2005-04-13 | 2012-04-18 | 株式会社ピュアロンジャパン | カーボン金属ナノツリーおよびその製造方法 |
TWI435358B (zh) * | 2005-08-10 | 2014-04-21 | Pureron Japan Co Ltd | A carbon film having a shape suitable for the emission of electric field, a carbon film structure, and an electron emitter |
JP4408891B2 (ja) * | 2006-12-19 | 2010-02-03 | 株式会社ライフ技術研究所 | 炭素膜および炭素膜構造 |
JP4390847B1 (ja) * | 2008-07-31 | 2009-12-24 | 株式会社ライフ技術研究所 | 電子放出体および電子放出体を備えた電界放射装置 |
US8518542B2 (en) * | 2009-05-26 | 2013-08-27 | Life Technology Research Institute, Inc. | Carbon film and carbon film structure |
-
2009
- 2009-06-24 JP JP2009149991A patent/JP5424098B2/ja active Active
-
2010
- 2010-02-23 KR KR1020127002362A patent/KR20120060198A/ko not_active Application Discontinuation
- 2010-02-23 AU AU2010264005A patent/AU2010264005A1/en not_active Abandoned
- 2010-02-23 EP EP10791766.8A patent/EP2469575A4/en not_active Withdrawn
- 2010-02-23 US US13/380,741 patent/US20120194057A1/en not_active Abandoned
- 2010-02-23 CN CN201080037145.9A patent/CN102576634A/zh active Pending
- 2010-02-23 WO PCT/JP2010/001204 patent/WO2010150438A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP2011008998A (ja) | 2011-01-13 |
EP2469575A4 (en) | 2014-04-09 |
US20120194057A1 (en) | 2012-08-02 |
WO2010150438A1 (ja) | 2010-12-29 |
CN102576634A (zh) | 2012-07-11 |
KR20120060198A (ko) | 2012-06-11 |
AU2010264005A1 (en) | 2012-02-16 |
EP2469575A1 (en) | 2012-06-27 |
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