Development of the Soft X-ray AGM–AGS RIXS beamline at the Taiwan Photon Source

Singh, A.; Huang, H.Y.; Chu, Y.Y.; Hua, C.Y.; Lin, S.W.; Fung, H.S.; Shiu, H.W.; Chang, J.; Li, J.H.; Okamoto, J.; Chiu, C.C.; Chang, C.H.; Wu, W.B.; Perng, S.Y.; Chung, S.C.; Kao, K.Y.; Yeh, S.C.; Chao, H.Y.; Chen, J.H.; Huang, D.J.; Chen, C.T.

doi:10.1107/S1600577521002897

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Figure 6
Measurements of the soft X-ray beam profile. (a, b) Measurements of the beam profile at the entrance slits for the vertical and horizontal directions, respectively. (c) The horizontal beam profile of the soft X-rays at the sample position. The beam profile was obtained on detecting the beam intensity with a photodiode after a blade moving along the transverse direction. The beam intensity from the photodiode as a function of the blade position is plotted with black circles, together with a green curve showing its Fourier filtered function; the beam profile after the differentiation of the photodiode signal is plotted with a blue curve for its Fourier filtered function. The measured beam sizes of (a), (b) and (c) are 1.97, 44.38 and 3.23 µm at FWHM, respectively.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 28| Part 3| May 2021| Pages 977-986

https://doi.org/10.1107/S1600577521002897

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