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Design of a carbon-nanotube yarn field emitter for micro-focus X-ray generation

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Abstract

The field-emission (F-E) characteristics of multi-walled carbon-nanotube (MWCNT) yarn and its contribution to X-ray generation have been investigated in the current work. A dry spinning method was used to fabricateMWCNT yarn from superMWCNTs that had been fabricated by using microwave plasma-enhanced chemical vapor deposition (MW-PECVD). The F-E behavior of the MWCNT yarn followed the Fowler-Nordheim model. Compared to a MWCNT, the MWCNT yarn displayed a significant F-E capability in both the diode and the triode X-ray generation structures. The low-voltage F-E of the MWCNT yarn can be attributed to the field-enhancing effect of the yarn due to its shape and to the contribution of the high-aspect-ratio nanotubes that protrude from the sides of the yarn. The effect of filters on the development of X-ray images has also been demonstrated. The amount of exposure of the samples to X-rays was also manipulated. Results of this study indicate that the MWCNT yarn may be a good candidate for use in low-voltage F-E applications for X-ray imaging.

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References

  1. J. Dorr, IEEE Nanotech. Mag. 4, 10 (2010).

    Article  Google Scholar 

  2. X. Lepró, M. D. Lima and R. H. Baughman, Carbon 48, 3621 (2010).

    Article  Google Scholar 

  3. M. B. Bazbouz and G. K. Stylios, Euro. Polymer J. 44, 1 (2008).

    Article  Google Scholar 

  4. W. Q. Zhang, D.-G. Wang, J.-Q. Huang, W.-P. Zhou, G.-H. Luo, W.-Z. Qian and F. Wei, Carbon 48, 2855 (2010).

    Article  Google Scholar 

  5. M. Zhang, K. R. Atkinson and R. H. Baughman, Science 306, 1358 (2004).

    Article  ADS  Google Scholar 

  6. M. Miao, Carbon 49, 3755 (2011).

    Article  Google Scholar 

  7. S.K.Kahng, T.S.Gates and G.D.Jefferson, Strain and Temperature Sensing Properties of Multiwalled Carbon Nanotube Yarn Composites, Available: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20080040160 200 8039380.pdf.

  8. A. Ghemes, Y. Minami, J. Muramatsu, M. Okada, H. Mimura and Y. Inoue, Carbon 50, 4579 (2012).

    Article  Google Scholar 

  9. K. Jiang, Q. Li and S. Fan, Nature 419, 801 (2002).

    Article  ADS  Google Scholar 

  10. Y. Wei, D. Weng, Y. Yang, X. Zhang, K. Jiang, L. Liu and S. Fan, Appl. Phys. Lett. 89, 063101 (2006).

    Article  ADS  Google Scholar 

  11. H. S. Kim, E. J. Castro and C. H. Lee, Vacuum 111, 142 (2015).

    Article  ADS  Google Scholar 

  12. Y. Kim, W. Song, S. Y. Lee, S. Shrestha, C. Jeon, W. C. Choi, M. Kim and C.-Y. Park, Jpn. J. Appl. Phys. 49, 085101 (2010).

    Article  ADS  Google Scholar 

  13. W. R. Hendee and E. R. Ritenour, Medical Imaging Physics, 4th ed. (Wiley-Liss, New York, 2002).

    Book  Google Scholar 

  14. X. H. Liang, S. Z. Deng, N. S. Xu, J. Chen and N. Y. Huang, Appl. Phys. Lett. 88, 111508 (2006).

    ADS  Google Scholar 

  15. J. Min, J. Y. Cai, M. Sridhar, C. D. Easton, T. R. Gengenbach, J. McDonnell, W. Humphries and S. Lucas, Carbon 52, 520 (2013).

    Article  Google Scholar 

  16. H. S. Kim, E. J. Castro and C. H. Lee, Mater. Res. Bull. 58, 107 (2014).

    Article  Google Scholar 

  17. J. Zhang, G. Yang, Y. Cheng, B. Gao, Q. Qiu, Y. Z. Lee, J. P. Lu and O. Zhou: Appl. Phys. Lett. 86, 184104 (2005).

    Article  ADS  Google Scholar 

  18. A. Haga, S. Senda, Y. Sakai, Y. Mizuta, S. Kita and F. Okuyama, Appl. Phys. Lett. 84, 2208 (2004).

    Article  ADS  Google Scholar 

  19. S. Senda, M. Tanemura, Y. Sakai, Y. Ichikawa, S. Kita, T. Otsuka, A. Haga and F. Okuyama, Rev. Sci. Instrum. 75, 1366 (2004).

    Article  ADS  Google Scholar 

  20. M. Bonard, K. A. Dean, B. F. Coll and C. Klinke, Phys. Rev. Lett. 89, 197602 (2002).

    Article  ADS  Google Scholar 

  21. S. Senda, Y. Sakai, Y. Mizuta, S. Kita and F. Okuyama, Appl. Phys. Lett. 85, 5679 (2004).

    Article  ADS  Google Scholar 

  22. H.-S. Jang, S. K. Jeon and S. H. Nahm, Carbon 48, 4019 (2010).

    Article  Google Scholar 

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Authors and Affiliations

  1. RIC for Next Generation Industrial Radiation Technology, Wonkwang University, Iksan, 54538, Korea

    Hyun Suk Kim & Edward Joseph D. Castro

  2. RIC for Next Generation Industrial Radiation Technology and Solar Cell Research Institute and Division of Microelectronics and Display Technology, Wonkwang University, Iksan, 54538, Korea

    Choong Hun Lee

Authors
  1. Hyun Suk Kim
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  2. Edward Joseph D. Castro
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  3. Choong Hun Lee
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Correspondence to Choong Hun Lee.

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Kim, H.S., Castro, E.J.D. & Lee, C.H. Design of a carbon-nanotube yarn field emitter for micro-focus X-ray generation. Journal of the Korean Physical Society 69, 297–303 (2016). https://doi.org/10.3938/jkps.69.297

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  • DOI: https://doi.org/10.3938/jkps.69.297

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