Détail du document
Identifiant
oai:arXiv.org:2411.06830
Sujet
Physics - Plasma Physics Astrophysics - Instrumentation and...Auteur
Bellenbaum, Hannah M. Bachmann, Benjamin Kraus, Dominik Gawne, Thomas Böhme, Maximilian P. Döppner, Tilo Fletcher, Luke B. MacDonald, Michael J. Moldabekov, Zhandos A. Preston, Thomas R. Vorberger, Jan Dornheim, TobiasCatégorie
sciences : astrophysique
Année
2024
Date de référencement
13/11/2024
Mots clés
model-free anglesRésumé
Warm dense matter (WDM) plays an important role in astrophysical objects and technological applications, but the rigorous diagnostics of corresponding experiments is notoriously difficult.
In this work, we present a model-free analysis of x-ray Thomson scattering (XRTS) measurements at multiple scattering angles.
Specifically, we analyze scattering data that have been collected for isochorically heated graphite at the Linac Coherent Light Source (LCLS).
Overall, we find good consistency in the extracted temperature between small and large scattering angles, whereas possible signatures of non-equilibrium may be hidden by the source function, and by the available dynamic spectral range.
The present proof-of-principle study directly points to improved experimental set-ups for equation-of-state measurements and for the model-free study of relaxation times.
Bellenbaum, Hannah M.,Bachmann, Benjamin,Kraus, Dominik,Gawne, Thomas,Böhme, Maximilian P.,Döppner, Tilo,Fletcher, Luke B.,MacDonald, Michael J.,Moldabekov, Zhandos A.,Preston, Thomas R.,Vorberger, Jan,Dornheim, Tobias, 2024, Towards Model-free Temperature Diagnostics of Warm Dense Matter from Multiple Scattering Angles
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