Measurement of the horizontal beam emittance of undulator radiation by tandem-double-slit optical system

Kagoshima, Y.; Akada, T.; Ikeda, T.; Kawashima, M.; Aoi, Y.; Takayama, Y.

doi:10.1107/S1600577520004415

Journal of Synchrotron Radiation Journal of
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Figure 3
(a) Measured intensity distribution I(x₁, x₂). The black thick line is a contour having intensity of $[1/\sqrt e]$ (= 0.6065). The horizontal $[1/\sqrt e]$ intensity widths were 0.94 mm at S₁ and 1.04 mm at S₂. (b) Horizontal phase-space intensity distribution I(x₁, x₁′) calculated by equation (1)

. The black thick line is the standard deviation ellipse in the phase space.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 27| Part 3| May 2020| Pages 799-803

https://doi.org/10.1107/S1600577520004415

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