1. ISIS Facility, STFC, Rutherford Appleton Laboratory, Harwell, Didcot, UK. E-mails: mark.kibble@stfc.ac.uk, chris.goodway@stfc.ac.uk, oleg.kirichek@stfc.ac.uk
2. Instituto de Ciencia de Materiales de Aragón (ICMA), Univ. de Zaragoza-CSIC, Zaragoza, Spain. E-mail: laliena@unizar.es
3. Institut Laue-Langevin, Grenoble, France. E-mail: lelievre@ill.eu
4. Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh, UK. E-mail: K.Kamenev@ed.ac.uk
5. Sorbonne Université, CNRS UMR 7590, IMPMC, Paris, France. E-mail: stefan.klotz@upmc.fr