2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/204864The Glasgow photon tagging spectrometer at Mainz has been upgraded so that it can be used with the 1500 MeV electron beam now available from the Mainz microtron MAMI-C. The changes made and the resulting properties of the spectrometer are discussed.20 pages, 12 figuresNuclear Experimenttext