SHERPA: A Spectrometer with High Energy Resolution and Polarisation Analysis Kirill Nemkovski, Robert Bewley, Victoria García Sakai, Gøran Jan Nilsen, Adrien Perrichon and Ian Silverwood EPJ Web Conf., 272 (2022) 02004 Published online: 17 November 2022 DOI: 10.1051/epjconf/202227202004