Welcome to the LINXS Guest Seminar and WEBINAR: CoWork series with Adam Hitchcock
When: March 30, 15:30 - 16.30
Where: at LINXS (Scheelvägen 19, Lund), with digital connection possibility (Zoom)
Registration deadline: March 24, at 12:00
Abstract:
Soft X-ray scanning transmission microscopy (STXM) is a powerful tool for nanoscale materials analysis, with significant advantages over analytical electron microscopies for studies of radiation sensitive materials, and for in situ and operando studies. Ptychography (scanning coherent diffraction imaging) can be measured using soft X-ray STXMs equipped with a suitable, post specimen X-ray camera. Ptychography provides significant improvements in spatial resolution (~10 nm, as opposed to 20-30 nm for conventional STXM) as well as additional information from phase imaging. This seminar will describe recent advances in soft X-ray spectro-ptychography include extension to low X-ray energies (<200 eV), and in situ flow electrochemical studies of Cu catalysts for CO2 reduction.
Bio:
Adam Hitchcock was born and educated in Canada (B.Sc., Chemistry, McMaster, 1974; Ph.D., Chemical Physics, UBC, 1978). His research focus is inner shell excitation spectroscopies and spectromicroscopies. A professor at McMaster since 1979, his group has studied inner shell electron energy loss (EELS) spectroscopy of gases and surfaces, using home built instruments. In 1980 he started synchrotron experiments, initially hard X-ray spectroscopy of materials at Cornell (USA), then soft X-ray spectroscopy of gases at LURE (France) and SRC (USA). In 1994 he began developing soft X-ray transmission microscopes (STXM) and photoemission microscopes (PEEM) at ALS (USA). He helped establish the Canadian Light Source (CLS, Saskatoon) and the CLS spectromicroscopy beamline, currently equipped with 2 STXMs and a PEEM. In 2006, he was awarded fellowship of the Royal Society of Canada (FRSC, Canada’s highest scientific honor), for his contributions to development of X-ray microscopy and the CLS. His current research is focused on technique developments of STXM and ptychography, and their application to studies of energy materials such as catalysts for CO2 reduction with in situ control of electrolyte and potential.
Programme Agenda
The detailed agenda is in the LINXS website LINXS Guest Seminar and WEBINAR: CoWork series Recent advances in soft X-ray spectro-ptychography with Adam Hitchcock — LINXS
