Design, Implementation, and Evaluation of a Head and Neck MRI RF Array Integrated with a 511 keV Transmission Source for Attenuation Correction in PET/MR. - Lucia I. Navarro de Lara; Roberta Frass-Kriegl; Andreas Renner; Jürgen Sieg; Michael Pichler; Thomas Bogner; Ewald Moser; Thomas Beyer; Wolfgang Birkfellner; Michael Figl; Elmar Laistler (Sensors, 2019)