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碳纳米管阴极强流脉冲发射放气特性研究

谌怡 张篁 杨安民 夏连胜 刘星光

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碳纳米管阴极强流脉冲发射放气特性研究

谌怡, 张篁, 杨安民, 夏连胜, 刘星光

Outgassing property of carbon nanotube cathode with intense pulsed emission

Shen Yi, Zhang Huang, Yang An-Min, Xia Lian-Sheng, Liu Xing-Guang
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  • 为了研究碳纳米管(CNT)阴极强流脉冲发射特性, 在2MeV直线感应加速器(LIA)注入器平台上开展了阴极放气特性实验. 研究结果表明:碳纳米管阴极强流发射时伴随有严重的阴极放气, 阴极放气参与形成阴极等离子体. 对于特定的几次实验, 通过数值积分估算了阴极材料的放气量为0.81.12PaL, 释放的气体分子数目与电子数目之比为254203, 说明阴极等离子体为弱电离等离子体. 分析了二极管电压、发射电流密度、放气量以及放气分子数目/电子数目之间的关系
    In order to study the properties of the carbon nanotube(CNT) cathode with intense pulsed emission, the outgassing property of cathode is investigated on the 2MeV linear induction accelerator(LIA) injector. Results show that the cathode has a capability of desorbing gases from the CNT cathode under pulsed high voltage. The outgassing plays an important role in the formation of the cathode plasma. The amounts of outgassing for the several experiments are estimated to be 0.081.12PaL, the corresponding ratios between outgassing amount and electron number are roughly calculated to be in a range of 254203atoms/e- by numerical integral of pressure, showing that the cathode plasma is weakly ionized. The relationship between diode voltage, emission current density, outgassing amount, and the outgassing molecule number per electron are analyzed.
    • 基金项目: 北京科技大学新金属材料国家重点实验室基金(批准号:20082D-10)资助的课题.
    • Funds: Project supported by the Foundation of State Key Laboratory for Advanced Metals and Materials of USTB, China (Grant No.20082D-10).
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    Saito Y, Hamaguchi K, Mizushima R, Uemura S, Nagasakob T, Yotani J, Shimojo T 1999 Appl. Surf. Sci. 146 305

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    Murakami H, Hirakawa M, Tanaka C, Yamakawa H 2000 Appl. Phys. Lett. 76 1776

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    Cho Y R, Lee J H , Song Y H, Kang S Y, Hwang C S, Jung M Y, Kim D H , Lee S K, Uhm H S, Cho K I 2001 Mate. Sci. Engi. B 79 128

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    Liao Q L, Zhang Y, Huang Y H, Qi J J, Gao Z J, Xia L S, Zhang H 2007 Appl. Phys. Lett. 90 151504

    [13]

    Read M E, Schwarz W G, Kremer M J, Lennhoff J D, Carnahan D L, Kempa K, Ren Z F 2001 Proceeding the 2001 Particle Accelerator Conference, Chicago, June 18–22, 2001, p1026

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    Shiffler D, Zhou O, Bower C, LaCour M, Golby K 2004 IEEE Trans. Plasma Sci. 32 2152

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    Korenev S 2002 Beams 2002: 14th International Conference on High-power Particle Beams, Albuquerque June 23–26, 2002, p385

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    Zhang H 2010 MS Thesis (Mianyang: China Academy of Engineering Physics) (in Chinese) [张篁 2010 硕士学位论文 (绵阳:中国工程物理研究院)]

    [17]

    Shen Y, Zhang H, Liu X G, Xia L S, Yang A M 2011 Acta Phys. Sin. 60 080702 (in Chinese) [谌怡, 张篁, 刘星光, 夏连胜, 杨安民 2011 物理学报 60 080702]

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    Shen Y, Xia L S, Zhang H, Liu X G, Liao Q L 2011 High Power Laser and Particle Beams 23 775 (in Chinese) [谌怡、夏连胜、张篁、刘星光、廖庆亮 2011 强激光与粒子束 23 775]

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    Li L M 2004 MS Thesis (Changsha: National University of Defence Technology) (in Chinese) [李立民 2004 硕士学位论文 (长沙:国防科技大学)]

  • [1]

    Yang A M, Xia L S, Zhang H, Zhang K Z, Shi J S, Deng J J 2008 Chin. Phys. C 32 286

    [2]

    Miller R B 1998 J. Appl. Phys. 84 3880

    [3]

    Shiffler D A, LaCour M J, Sena M D, Mitchell M D, Haworth M D, Hendricks K J, Spencer T A 2000 IEEE Trans. Plasma Sci. 28 517

    [4]

    Liao Q L, Yang Y, Xia L S, Qi J J, Zhang Y, Huang Y H, Qin Z 2008 Phys. Plasmas 15 114505

    [5]

    Liao Q L, Zhang Y, Xia L S,HuangYH,Qi J J,Gao Z J, Zhang H 2007 Acta Phys. Sin. 56 5335 (in Chinese) [廖庆亮, 张跃, 夏连胜, 黄运华, 齐俊杰, 高战军, 张篁 2007物理学报 56 5335]

    [6]

    Li D C, Dai L M, Huang S M, Mau AWH,Wang Z L 2000 Chem. Phys. Lett. 316 349

    [7]

    Milne WI, Teo K B K, Amaratunga G A J, Legagneux P, Gangloff L, Schnell J P, Semet V, Binh V T, Groening O 2004 J. Mater. Chem. 14 1

    [8]

    Endo M, Hayashi T, Kim Y A, Terrones M, Dresselhaus M S 2004 Phil. Trans. R. Soc. Lond. A 362 2223

    [9]

    Saito Y, Hamaguchi K, Mizushima R, Uemura S, Nagasakob T, Yotani J, Shimojo T 1999 Appl. Surf. Sci. 146 305

    [10]

    Murakami H, Hirakawa M, Tanaka C, Yamakawa H 2000 Appl. Phys. Lett. 76 1776

    [11]

    Cho Y R, Lee J H , Song Y H, Kang S Y, Hwang C S, Jung M Y, Kim D H , Lee S K, Uhm H S, Cho K I 2001 Mate. Sci. Engi. B 79 128

    [12]

    Liao Q L, Zhang Y, Huang Y H, Qi J J, Gao Z J, Xia L S, Zhang H 2007 Appl. Phys. Lett. 90 151504

    [13]

    Read M E, Schwarz W G, Kremer M J, Lennhoff J D, Carnahan D L, Kempa K, Ren Z F 2001 Proceeding the 2001 Particle Accelerator Conference, Chicago, June 18–22, 2001, p1026

    [14]

    Shiffler D, Zhou O, Bower C, LaCour M, Golby K 2004 IEEE Trans. Plasma Sci. 32 2152

    [15]

    Korenev S 2002 Beams 2002: 14th International Conference on High-power Particle Beams, Albuquerque June 23–26, 2002, p385

    [16]

    Zhang H 2010 MS Thesis (Mianyang: China Academy of Engineering Physics) (in Chinese) [张篁 2010 硕士学位论文 (绵阳:中国工程物理研究院)]

    [17]

    Shen Y, Zhang H, Liu X G, Xia L S, Yang A M 2011 Acta Phys. Sin. 60 080702 (in Chinese) [谌怡, 张篁, 刘星光, 夏连胜, 杨安民 2011 物理学报 60 080702]

    [18]

    Shen Y, Xia L S, Zhang H, Liu X G, Liao Q L 2011 High Power Laser and Particle Beams 23 775 (in Chinese) [谌怡、夏连胜、张篁、刘星光、廖庆亮 2011 强激光与粒子束 23 775]

    [19]

    Li L M 2004 MS Thesis (Changsha: National University of Defence Technology) (in Chinese) [李立民 2004 硕士学位论文 (长沙:国防科技大学)]

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出版历程
  • 收稿日期:  2011-05-31
  • 修回日期:  2012-04-05
  • 刊出日期:  2012-04-05

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