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For the application requirement of a carbon nanotube clod cathode (CNCC) used in the microwave and millimeter wave electric vacuum radiation source devices, pulsed field emission characteristics of CNCC are experimentally investigated by a 2 μs/20 kV high-voltage modulator in this paper. The pulsed field emission currents for different distances between anode and cathode and those of CNCC after the pulsed high-tension arc has occurred many times are studied. A maximal emission current of 16 mA is tested for CNCC with a 4 mm diameter emission disk, and the emission current density is achieved to be 127 mA/cm2. Based on the experimental results, the field emission simulation model of CNCC is established by PIC simulation software. Simulation results show that this simulation model is suited for describing the experimental results and laying the foundation for the development of CNCC electron optical system and radiation source devices.
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Keywords:
- carbon nanotubes /
- cold cathode /
- field emission /
- simulation model
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[2] Zhang Y, Deng S Z, Duan C Y, Chen J, Xu N S 2008 J. Vac. Sci. Technol. B 26 106
[3] Zhang Y, Deng S Z, Xu N S, Chen J 2008 J. Vac. Sci. Technol. B 26 1033
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[10] Chen Y, Zhang H, Yang A M, Xia L S, Liu X G 2012 Acta Phys. Sin. 61 072901 (in Chinese) [谌怡, 张篁, 杨安民, 夏连胜, 刘星光 2012 物理学报 61 072901]
[11] Qian L, Wang Y Q, Liu L, Fan S S 2011 Acta Phys. Sin. 60 028801 (in Chinese) [潜力, 王昱权, 刘亮, 范守善 2011 物理学报 60 028801]
[12] Yuan X S, Yan Y, Liu S G 2011 Acta Phys. Sin. 60 014102 (in Chinese) [袁学松, 鄢扬, 刘盛纲 2011 物理学报 60 014102]
[13] Calderon C X, Geng H Z, Gao B, An L, Cao G H, Zhou O 2009 Nanotechnology 20 325707
[14] Li C, Zhang Y, Mann M, Hasko D, Lei W, Wang B P, Chu D P, Pribat D, Gehan A J A, William I M 2010 Appl. Phys. Lett. 97 113107
[15] Zhong D Y, Zhang G Y, Liu S 2002 Appl. Phys. Lett. 80 3 506
[16] Berdinsky A S, Shaporin A V, Yoo J B, Park J H, Alegaonkar P S, Han H J, Son J H 2006 Appl. Phys. A 83 377
[17] Zhu Y B, Wang W L, Liao K J 2002 Acta Phys. Sin. 51 2335 [朱亚波, 王万录, 廖克俊 2002 物理学报 51 2335]
[18] Zhang Y, Du J L, Tang S, Liu P, Deng S Z, Chen J, Xu N S 2012 Nanotechnology 23 015202
[19] Zhang Y, Du J L, Xu J H, Deng S Z, Xu N S, Chen J 2011 Ultramicroscopy 111 426
[20] Bonard J M, Dean K A, Coll F C, Klinke C 2002 Phys. Rev. Lett. 89 197602
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[1] Jonge N D, Bonard J M 2004 Phil. Trans. R. Soc. Lond. A 362 2239
[2] Zhang Y, Deng S Z, Duan C Y, Chen J, Xu N S 2008 J. Vac. Sci. Technol. B 26 106
[3] Zhang Y, Deng S Z, Xu N S, Chen J 2008 J. Vac. Sci. Technol. B 26 1033
[4] Zheng X, Chen G H, Li Z B, Deng S Z, Xu N S 2004 Phys. Rev. Lett. 92 106803
[5] Zhang J, Yang G, Cheng Y, Gao B, Qiu Q, Lee Y Z, Lu J P, Zhou O 2005 Appl. Phys. Lett. 86 184104
[6] Niels D J, Yann L, Koen S, Tjerk H O 2002 Nature 420 393
[7] Hozumi Y, Ohsawa S, Sugimura T, Ikeda M 2004 Proceedings of LINAC Lübeck, Germany, August 16-20, 2004 p652
[8] Liao Q L, Zhang Y, Xia L S, Qi J J, Huang Y H, Deng Z Q, Gao Z J, Cao J W 2008 Acta Phys. Sin. 57 2328 (in Chinese) [廖庆亮, 张跃, 夏连胜, 齐俊杰, 黄运华, 邓战强, 高战军, 曹佳伟 2008 物理学报 57 2328]
[9] Liao Q L, Zhang Y, Huang Y H, Qi J J, Gao Z J, Xia L S, Zhang H 2008 Acta Phys. Sin. 57 1778 (in Chinese) [廖庆亮, 张跃, 黄运华, 齐俊杰, 高战军, 夏连胜, 张篁 2008 物理学报 57 1778]
[10] Chen Y, Zhang H, Yang A M, Xia L S, Liu X G 2012 Acta Phys. Sin. 61 072901 (in Chinese) [谌怡, 张篁, 杨安民, 夏连胜, 刘星光 2012 物理学报 61 072901]
[11] Qian L, Wang Y Q, Liu L, Fan S S 2011 Acta Phys. Sin. 60 028801 (in Chinese) [潜力, 王昱权, 刘亮, 范守善 2011 物理学报 60 028801]
[12] Yuan X S, Yan Y, Liu S G 2011 Acta Phys. Sin. 60 014102 (in Chinese) [袁学松, 鄢扬, 刘盛纲 2011 物理学报 60 014102]
[13] Calderon C X, Geng H Z, Gao B, An L, Cao G H, Zhou O 2009 Nanotechnology 20 325707
[14] Li C, Zhang Y, Mann M, Hasko D, Lei W, Wang B P, Chu D P, Pribat D, Gehan A J A, William I M 2010 Appl. Phys. Lett. 97 113107
[15] Zhong D Y, Zhang G Y, Liu S 2002 Appl. Phys. Lett. 80 3 506
[16] Berdinsky A S, Shaporin A V, Yoo J B, Park J H, Alegaonkar P S, Han H J, Son J H 2006 Appl. Phys. A 83 377
[17] Zhu Y B, Wang W L, Liao K J 2002 Acta Phys. Sin. 51 2335 [朱亚波, 王万录, 廖克俊 2002 物理学报 51 2335]
[18] Zhang Y, Du J L, Tang S, Liu P, Deng S Z, Chen J, Xu N S 2012 Nanotechnology 23 015202
[19] Zhang Y, Du J L, Xu J H, Deng S Z, Xu N S, Chen J 2011 Ultramicroscopy 111 426
[20] Bonard J M, Dean K A, Coll F C, Klinke C 2002 Phys. Rev. Lett. 89 197602
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