Development of the multiplex imaging chamber at PAL-XFEL

Hwang, J.; Kim, S.; Lee, S.Y.; Park, E.; Shin, J.; Lee, J.H.; Kim, M.-; Kim, S.; Park, S.-Y.; Jang, D.; Eom, I.; Kim, S.; Song, C.; Kim, K.S.; Nam, D.

doi:10.1107/S1600577524001218

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Figure 7
Static and time-resolved measurement of wide-angle X-ray diffraction and X-ray emission spectra of anatase TiO₂ NPs. (a) Wide-angle diffraction intensity profile of the TiO₂ (101) peak. (b) X-ray emission spectra of Ti Kα₁ (4.510 keV) and Kα₂ (4.504 keV). (c) Time-resolved X-ray diffraction of TiO₂ NPs. At 40 ps, significant (101) peak broadening corresponding to a 70% increase in FWHM is presented. It implies melting of the crystalline domain after laser irradiation. (d) Time-resolved X-ray emission spectrum of TiO₂ NPs. At 10 ps, the maximum energy shift, −0.6 eV, was observed. Compared with diffraction signals, the changes in the emission spectra were inappreciable after a 40 ps delay.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 31| Part 3| May 2024| Pages 469-477

https://doi.org/10.1107/S1600577524001218

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