Operating a large-diameter dual-phase liquid xenon TPC in the unshielded PANCAKE facility. - Müller, Julia; Grigat, Jaron; Glade-Beucke, Robin; Lindemann, Sebastian; Luce, Tiffany; Madduri, Gnanesh Chandra; Reininghaus, Jens; Schumann, Marc; Softley-Brown, Adam; Stevens, Andrew (European Physical Journal C -- Particles & Fields, 2026)