FEI Titan Themis STEM is Back and Operational Published May 10, 2023 By Elizabeth Miller Status The FEI Titan Themis STEM is back operational. The microscope PC stayed on the last couple of days and everything else looks good. Regards, —Erico Freitas ← Previous Post Upgrades for ACMAL’s Environmental Scanning Microscope Next Post → FEI Titan Themis down