Experimental Data for: Collective nuclear excitation and pulse propagation in single-mode x-ray waveguides

Experimental Data for the paper "Collective nuclear excitation and pulse propagation in single-mode x-ray waveguides". The data has been acquired during 2 synchrotron beamtimes in 2022 (Proposal No. I-20211677) and 2023 (Proposal No. I-20221193) at the High Resolution Dynamics Beamline P01, PETRA III, Deutsches Elektronen-Synchrotron DESY (Hamburg, Germany). See the referenced paper for detailed information. Only those measurements used in the paper are published here, after being converted to reusable data format (NeXus) and annotated.