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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.
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Keywords:
- carbon nanotube cathode /
- intense pulsed emission /
- outgassing property /
- linear induction accelerator
[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 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 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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[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 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 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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