Mixed Source Region Signatures inside Magnetic Switchback Patches Inferred by Heavy Ion Diagnostics - Rivera,YJ; Badman,ST; Stevens,ML; Raines,JM; Owen,CJ; Paulson,K; Niembro,T; Livi,SA; Lepri,ST; Landi,E; Halekas,JS; Ervin,T; et al. (ASTROPHYSICAL JOURNAL, 2024)