Support for Junjing Deng

Argonne National Laboratory Statement of Work August 23, 2012 Junjing Deng will be working on the development and application of x-ray microscopy methods. In hard x-ray microscopy experiments at Argonne National Laboratory, we have 1) developed new methods for obtaining 3D images of the location of particular elements in cells and tissues, and 2) we are starting to work with new methods such as ptychography for obtaining high resolution phase and absorption contrast images beyond the resolution limit of a lens by using coherent diffraction data. Mr. Deng will work on the development of these methods using existing x-ray microscopes. In addition, we have received a new cryogenic scanning microscope (the Bionanoprobe) which offers unique capabilities for studies of frozen hydrated biological specimens. Mr. Deng will join the team that is bringing this complex new microscope online, and participate in some of its first scientific demonstrations. His work will involve data analysis and software development at Northwestern University, participation in occasional meetings at Argonne, and work at Argonne both in sample preparation and in operation of the x-ray microscopes involved in this work.