ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Validating Isomorph theory
Abstract: The goal of the experiment is to continue our work on the first experimental test of the predictions from isomorph theory, that the structure of a liquid, in reduced units, is invariant along certain lines, isomorphs, in the (P, T)-phase diagram. Isomorph theory predicts that the relaxation time of the liquid is invariant along isomorphs. Experimentally we therefore identify candidates for isomorphs as lines along which the relaxation time is the same (isochrones). We wish to examine the temperature and pressure dependent changes to the structure, by measuring on both deuterated and hydrogen-containing cumene (isopropylbenzene, C9H12). Using isotopic substitution and EPSR to analyze the results. The unique construction of SANDALS (and NIMROD) makes it possible to measure neutron diffraction on both hydrogen-containing as well as deuterated samples.
Principal Investigator: Professor Kristine Niss
Experimenter: Dr Oliver Alderman
Experimenter: Mr Erik Hillo Lørup
Local Contact: Dr Zachary Amato
DOI: 10.5286/ISIS.E.RB2310582
ISIS Experiment Number: RB2310582
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2310582-1 | SANDALS | 17 March 2028 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
Select the data format above to find
out more about it.
Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Professor Kristine Niss et al; (2025): Validating Isomorph theory, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310582
Data is released under the CC-BY-4.0 license.
