Abstract
A laser-induced intense Ka hard X-ray source was developed by using a novel copper film target and a 27-TW femtosecond laser system. A specially designed pinhole camera was employed to measure the X-ray photon flux, X-ray energy spectrum, and X-ray source image. By adapting a single photon counting method, we estimated the photon number in the full width at half maximum (FWHM) spectral region to be 1.74 × 109 photons/sr for 8.05-keV Cu Ka X-rays. The shape of the X-ray source was matched well with that of the focused laser beam on the target. By provision of a lengthy copper film of 50 m with a thickness of 50 µm, the novel copper film target is capable of long time operation of more than 27 hours at a repetition rate of 10 Hz. The hard X-ray source is suitable for applications in single-shot X-ray contrast imaging or in ultrafast pump-probe analyses of material structures.
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References
M. Hada and J. Matsuo, X-ray Spectrom. 41, 188 (2012).
M. Hada, K. Pichugin and G. Sciaini, Eur. Phys. J. Special Topics 222, 1093 (2013).
Y. Hayashi et al., Opt. Lett. 36, 1614 (2011).
L. Zhang et al., Opt. Express 19, 25812 (2011).
Z. Wang, C. Liu, Z. Shen, Q. Zhang, H. Teng and Z. Wei, Opt. Lett. 36, 3194 (2011).
J. Colgan et al., High Energy Density Phys. 7, 77 (2011).
Z. Zhang et al., Opt. Express 19, 4560 (2011).
M. Hada and J. Matsuo, Appl. Phys. B 99, 173 (2010).
F. Zamponi et al., Appl. Phys. A 96, 51 (2009).
J. Stingl, F. Zamponi, B. Freyer, M. Woerner, T. Elsaesser and A. Borgschulle, Phys. Rev. Lett. 109, 147402 (2014).
I. W. Choi et al., J. Korean Phys. Soc. 55, 517 (2009).
C. Thomas, G. Rehm, I. Martin and R. Bartolini, Phys. Rev. ST Accel. Beams 13, 022805 (2010).
P. Elleaume, C. Fortgang, C. Penel and E. Tarazona, J. Synchrotron Rad. 2, 209 (1995).
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Lee, S., Choi, I.W., Sohn, IB. et al. Femtosecond laser-driven intense Cu K α X-ray source with a novel film target driver. Journal of the Korean Physical Society 67, 800–806 (2015). https://doi.org/10.3938/jkps.67.800
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DOI: https://doi.org/10.3938/jkps.67.800