A new reference for changes in X-ray scattering from water due to temperature changes at ambient conditions

Hanson, L.G.; Veile, T.; Schouenborg, J.F.; Nielsen, V.M.; Jørgensen, M.R.V.; Gjørup, F.H.; Frandsen, C.; Haldrup, K.

doi:10.1107/S160057752600250X

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Figure 7
Q-resolved Taylor expansion of S(Q, T) (blue) and $[\tilde{S\,}\!(Q,T)]$ (black). For the data shown in black, the density contribution to S(Q) has been subtracted before the Taylor analysis as defined in equation (5)

. (a) Zeroth components S(Q, T₀) and the S(Q) reference data determined by Skinner et al. (grey). (b) First component dS(Q)/dT and the temperature differential determined at ESRF (grey). (c) Second component d²S(Q)/dT² and the density differential determined at ESRF (grey). The ESRF reference signals are multiplied by a factor of 1.5 and −10⁻², respectively, to plot them on a similar scale to the Taylor coefficients. Additionally, they are Savitzky–Golay filtered, as also applied in the signal fitting and subtraction of $[{{\partial S(Q)}/{\partial\rho}}|_{T}^{\rm{ESRF}}]$ .

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 33| Part 3| May 2026| Pages 649-657

https://doi.org/10.1107/S160057752600250X

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