Direct experimental observation of the gas density depression effect using a two-bunch X-ray FEL beam

Feng, Y.; Schafer, D.W.; Song, S.; Sun, Y.; Zhu, D.; Krzywinski, J.; Robert, A.; Wu, J.; Decker, F.-J.

doi:10.1107/S1600577517014278

Journal of Synchrotron Radiation Journal of
Synchrotron Radiation

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Figure 2
Average digitizer traces of the two-bunch beam measured by (a) the upstream diode D₁ and (b) the downstream diode D₂ at an argon pressure P = 0 hPa. The digitizer was set to sample at 0.25 ns per channel. The integrated intensities of the first pulse p₁ are denoted as I₁₁ and I₁₂ on D₁ and D₂, respectively, and those of the second pulse p₂ as I₂₁ and I₂₂ on D₁ and D₂, respectively.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 25| Part 1| January 2018| Pages 145-150

https://doi.org/10.1107/S1600577517014278

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