A high-Q superconducting toroidal medium frequency detection system with a capacitively adjustable frequency range >180 kHz - Volksen,F; Devlin,JA; Borchert,MJ; Erlewein,SR; Fleck,M; Jager,J; Latacz,BM; Micke,P; Nuschke,P; Umbrazunas,G; Wursten,EJ; Abbass,F; et al. (REVIEW OF SCIENTIFIC INSTRUMENTS, 2022)