一种碳纤维阵列阴极的初步实验研究
详细信息 查看官网全文
- 英文论文题名：Preliminary experimental study of a carbon fiber array cathode
- 论文作者：李安昆 ; 樊玉伟
- 英文论文作者：Li Ankun ; Fan Yuwei ; College of Optoelectric Science and Engineering ; National University of Defense Technology
- 年：2016
- 作者机构：国防科学技术大学光电科学与工程学院;
- 论文关键词：碳纤维 ; 阴极 ; 高功率微波 ; 磁绝缘线振荡器 ; 脉冲功率系统
- 英文论文关键词：carbon fibers ; cathode ; high power microwave ; magnetically insulated transmission line oscillator(MILO) ; pulsed power system
- 会议召开时间：2016-08-23
- 会议录名称：2016真空电子学分会第二十届学术年会论文集（下）
- 语种：中文
- 分类号：TN752
- 学会代码：ZKDZ
- 会议名称：2016真空电子学分会第二十届学术年会
- 会议地点：中国福建厦门
- 主办单位：中国电子学会真空电子学分会、微波电真空器件国家级重点实验室
- 学会名称：中国电子学会真空电子学分会
- 页数：6
- 文件大小：626k
- 原文格式：D
- 会议级别：全国
摘要
本文报道了一种可用于磁绝缘线振荡器的碳纤维阵列阴极的初步实验结果。在脉冲功率系统提供大约480kV的二极管电压、44 kA的二极管电流的条件下,磁绝缘线振荡器输出了脉宽约60ns、峰值功率约3GW的微波。初步实验结果表明,该碳纤维阵列阴极的工作了700多炮次后,其二极管电流和微波的炮次间重复性仍然比较稳定。在工作700多炮次后,碳纤维的表面没有出现明显的损伤或恶化,这说明碳纤维阵列阴极的寿命可达700炮次以上。这种碳纤维阵列阴极是一种非常具有潜力取代现有天鹅绒阴极的阴极。
The preliminary experimental results of a carbon fiber array cathode for the magnetically insulated transmission line oscillator(MILO) operations are reported. Using the cathode, radiated microwave with peak power of about 3 GW and pulse-length of about 60 nanoseconds was obtained in a MILO device under diode voltage of about 480 kV and diode current of about 44 kA. The preliminary experimental results showed that the shot-to-shot reproducibility of the diode current and the microwave power was stable until 700 shots. No obvious damage or deterioration was observed in the carbon fiber surface morphology after 700 shots, so a maintain-free lifetime that is more than 700 shots can be reached. This carbon fiber array cathode offers a potential replacement for the existing velvet cathode.
The preliminary experimental results of a carbon fiber array cathode for the magnetically insulated transmission line oscillator(MILO) operations are reported. Using the cathode, radiated microwave with peak power of about 3 GW and pulse-length of about 60 nanoseconds was obtained in a MILO device under diode voltage of about 480 kV and diode current of about 44 kA. The preliminary experimental results showed that the shot-to-shot reproducibility of the diode current and the microwave power was stable until 700 shots. No obvious damage or deterioration was observed in the carbon fiber surface morphology after 700 shots, so a maintain-free lifetime that is more than 700 shots can be reached. This carbon fiber array cathode offers a potential replacement for the existing velvet cathode.
引文
[1]Krasik Ya E,Dunaevsky A,Felsteiner J.Plasma sources for high-current electron beam generation[J].PHYSICS OF PLASMAS,2001,8(5):2466-2472.
[2]Krasik Ya E,Yarmolich D,Gleizer J Z,et al.Pulsed plasma electron sources[J].PHYSICS OF PLASMAS,2009,16(5):057103-1-11.
[3]Shiffler D,Haworth M,Cartwright K,et al.Review of Cold Cathode Research at the Air Force Research Laboratory[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2008,36(3):718-728.
[4]Krasik Ya E,Dunaevsky A,Krokhmal A,et al.Emission properties of different cathodes at E≤10~5 v/cm[J].Journal of Applied Physics,2001,89(4):2379-2399.
[5]Garate E,McWilliams R D,Voss D E,et al.Novel cathode for field-emission applications[J].Review of Scientific Instruments,1995,66(3):2528-2532.
[6]Shiffler D,LaCour M,Golby K,et al.Comparison of Velvet-and Cesium Iodide-Coated Carbon Fiber Cathodes[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2001,29(3):445-451.
[7]Shiffler D,Ruebush M,Haworth M,et al.Carbon velvet field emission cathode[J].Review of Scientific Instruments,2002,73(12):4358-4362.
[8]Liu L,Wan H,Zhang J,et al.Fabrication of carbon-fiber cathode for high-power microwave applications[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2004,32(4):1742-1746.
[9]Shiffler D,LaCour M J,Sena M D,et al.Comparison of Carbon Fiber and Cesium Iodide-Coated Carbon Fiber Cathodes[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2000,28(3):517-522.
[10]Shiffler D,Heggemeier J,LaCour M,et al.Low level plasma formation in a carbon velvet cesium iodide coated cathode[J].PHYSICS OF PLASMAS,2004 11(4):1680-1684.
[11]Umstattd R J,Schlise C A,F.Wang,Gas Evolution During Operation of a Csl-Coated Carbon Fiber Cathode in a Closed Vacuum System[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2005,33(2):901-910.
[12]Liu L,Li L M,Zhang J,et al.A series of tufted carbon fiber cathodes designed for different high power microwave sources[J].Review of Scientific Instruments,2008,79(6):064701-1-4.
[13]Li L M,Liu L,Xu Q F,et al.Design of a simple annular electron beam source and its operating characteristics in single and repetitive shot modes[J].Review of Scientific Instruments,2008,79(9):094701-l-5.
[14]Liu L,Li L M,Wen J C,et al.Robust,easily shaped,and epoxy-free carbon-fiber-aluminum cathodes for generating high-current electron beams[J].Review of Scientific Instruments,2009,80(2):023303-1-4.
[15]Fan Y W,Yuan C W,Zhong H H,et al.Experimental investigation of an improved MILO[J].IEEE Trans.Plasma Sci,2007,35(4):1075-1080.
[16]Fan Y W,Zhong H H,Yang H W,et al.Analysis and improvement of an X-band magnetically insulated transmission line oscillator[J].Appl.Phys,2008,103(12):123301-1-4.
[17]Fan Y W,Zhong H H,Li Z Q,et al.Investigation of a 1.2-GHz Magnetically Insulated Transmission Line Oscillator[J].IEEE Trans.Plasma Sci,2011,39:540-544.
[18]Fan Y W,Zhong H H,Li Z Q,et al.Complex magnetically insulated transmission line oscillator[J].PHYSICS OF PLASMAS,2008,15(8):083102-1-3.
[19]Fan Y W,Zhong H H,Li Z Q,et al.A metal-dielectric cathode[J].Journal of Applied Physics,2008,104(2):023304-1-4.
[20]Fan Y W,Zhong H H,Li Z Q,et al.Recent progress of the improved magnetically insulated transmission line oscillator[J].Rev.Sci.Instrum,2008,79(3):034703-1-4.
[21]Fan Y W,Zhong H H,Li Z Q,et al.A double-band high-power microwave source[J].J.Appl.Phys,2007,102(10):103304-1-3.
[22]Fan Y W,Wang X Y,Zhong H H,et al.A dielectric-filled magnetically insulated transmission line oscillator[J].Appl.Phys.Lett,2015,106(9):093501-1-4.
[23]Fan Y W,Yuan C W,Zhong H H,et al.Simulation investigation of an improved MILO[J].IEEE Trans.Plasma Sci,2007,35(2):379-383.
[24]Fan Y W,Zhong H H,Zhang J D,et al.A long-pulse repetitive operation magnetically insulated transmission line oscillator[J].Rev.Sci.Instrum,2014,85(5):053512-1-4.
[25]Miller R B,Mechanism of explosive electron emission for dielectric fiber(velvet)cathodes[J].Journal of Applied Physics,1998,84(7):3880-3889.
[2]Krasik Ya E,Yarmolich D,Gleizer J Z,et al.Pulsed plasma electron sources[J].PHYSICS OF PLASMAS,2009,16(5):057103-1-11.
[3]Shiffler D,Haworth M,Cartwright K,et al.Review of Cold Cathode Research at the Air Force Research Laboratory[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2008,36(3):718-728.
[4]Krasik Ya E,Dunaevsky A,Krokhmal A,et al.Emission properties of different cathodes at E≤10~5 v/cm[J].Journal of Applied Physics,2001,89(4):2379-2399.
[5]Garate E,McWilliams R D,Voss D E,et al.Novel cathode for field-emission applications[J].Review of Scientific Instruments,1995,66(3):2528-2532.
[6]Shiffler D,LaCour M,Golby K,et al.Comparison of Velvet-and Cesium Iodide-Coated Carbon Fiber Cathodes[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2001,29(3):445-451.
[7]Shiffler D,Ruebush M,Haworth M,et al.Carbon velvet field emission cathode[J].Review of Scientific Instruments,2002,73(12):4358-4362.
[8]Liu L,Wan H,Zhang J,et al.Fabrication of carbon-fiber cathode for high-power microwave applications[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2004,32(4):1742-1746.
[9]Shiffler D,LaCour M J,Sena M D,et al.Comparison of Carbon Fiber and Cesium Iodide-Coated Carbon Fiber Cathodes[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2000,28(3):517-522.
[10]Shiffler D,Heggemeier J,LaCour M,et al.Low level plasma formation in a carbon velvet cesium iodide coated cathode[J].PHYSICS OF PLASMAS,2004 11(4):1680-1684.
[11]Umstattd R J,Schlise C A,F.Wang,Gas Evolution During Operation of a Csl-Coated Carbon Fiber Cathode in a Closed Vacuum System[J].IEEE TRANSACTIONS ON PLASMA SCIENCE,2005,33(2):901-910.
[12]Liu L,Li L M,Zhang J,et al.A series of tufted carbon fiber cathodes designed for different high power microwave sources[J].Review of Scientific Instruments,2008,79(6):064701-1-4.
[13]Li L M,Liu L,Xu Q F,et al.Design of a simple annular electron beam source and its operating characteristics in single and repetitive shot modes[J].Review of Scientific Instruments,2008,79(9):094701-l-5.
[14]Liu L,Li L M,Wen J C,et al.Robust,easily shaped,and epoxy-free carbon-fiber-aluminum cathodes for generating high-current electron beams[J].Review of Scientific Instruments,2009,80(2):023303-1-4.
[15]Fan Y W,Yuan C W,Zhong H H,et al.Experimental investigation of an improved MILO[J].IEEE Trans.Plasma Sci,2007,35(4):1075-1080.
[16]Fan Y W,Zhong H H,Yang H W,et al.Analysis and improvement of an X-band magnetically insulated transmission line oscillator[J].Appl.Phys,2008,103(12):123301-1-4.
[17]Fan Y W,Zhong H H,Li Z Q,et al.Investigation of a 1.2-GHz Magnetically Insulated Transmission Line Oscillator[J].IEEE Trans.Plasma Sci,2011,39:540-544.
[18]Fan Y W,Zhong H H,Li Z Q,et al.Complex magnetically insulated transmission line oscillator[J].PHYSICS OF PLASMAS,2008,15(8):083102-1-3.
[19]Fan Y W,Zhong H H,Li Z Q,et al.A metal-dielectric cathode[J].Journal of Applied Physics,2008,104(2):023304-1-4.
[20]Fan Y W,Zhong H H,Li Z Q,et al.Recent progress of the improved magnetically insulated transmission line oscillator[J].Rev.Sci.Instrum,2008,79(3):034703-1-4.
[21]Fan Y W,Zhong H H,Li Z Q,et al.A double-band high-power microwave source[J].J.Appl.Phys,2007,102(10):103304-1-3.
[22]Fan Y W,Wang X Y,Zhong H H,et al.A dielectric-filled magnetically insulated transmission line oscillator[J].Appl.Phys.Lett,2015,106(9):093501-1-4.
[23]Fan Y W,Yuan C W,Zhong H H,et al.Simulation investigation of an improved MILO[J].IEEE Trans.Plasma Sci,2007,35(2):379-383.
[24]Fan Y W,Zhong H H,Zhang J D,et al.A long-pulse repetitive operation magnetically insulated transmission line oscillator[J].Rev.Sci.Instrum,2014,85(5):053512-1-4.
[25]Miller R B,Mechanism of explosive electron emission for dielectric fiber(velvet)cathodes[J].Journal of Applied Physics,1998,84(7):3880-3889.