Equipment: Helios 5 Dual Beam Microscope: Andvanced instrument for characterisation and sample preparation with unique features: high resolution SEM + ion beam + highly sensitive TOF-SIMS dector A sputer coater for depositing graphite or gold onto non-conductive and sensitive samples prior to imaging. PECS II: Broad argon ion beam system designed to polish and coat samples for SEM imaging and analytical techniques. . . . . .