Joseph Dvorak
ARI/SXN Beamline Scientist, Soft X-ray Scattering & Spectroscopy Program, National Synchrotron Light Source II
Brookhaven National Laboratory
National Synchrotron Light Source II
Bldg. 741
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-5135
jdvorak@bnl.gov
Joseph Dvorak is a scientist with experience in soft X-ray experimental techniques and instrumentation development. His research experience includes studying model catalytic systems using various soft X-ray spectroscopies, and studying the magnetic behvior of thin film materials using X-ray magnetic dichroism and resonant X-ray magentic scattering.
Currently he designs soft X-ray optical systems, including beamlines and spectrometers, to allow scientific advances in the fields of condensed matter physics and catalysis. Noteable work includes assisting with the design and commissioning of the SIX beamline at NSLS-II, which is currently the world's leading high resolution soft X-ray RIXS beamline, and with the new high resolution qRIXS endstation currently being installed at LCLS-2. Currently he is assisting with the design of two new beamlines for NSLS-II: a soft X-ray zone plate based scanning nanoprobe beamline (SXN) with sub 10 nm spatial resolution and a second beamline (ARI) to enable both angle-resolved photoelectron spectroscopy (ARPES) and resonant inelastic X-ray scattering (RIXS) imaging at 150 nm spatial resolution.
He has worked in several capacities, as a user, a beamline scientist, and currently as a designer of soft X-ray instruments first at NSLS, and now at NSLS-II for over twenty years.
Education
B.S. Chemistry, Pennsylvania State University, State College, PA 1987.
Ph.D. Physical Chemistry, University of Pennsylvania, Philadelphia, PA 1998. Research involved the investigation of adsorbate-induced non-resonant reflectivity changes on metal surfaces. The two major thrusts were to investigate the origin of the reflectivity changes and to develop a novel optical technique to measure surface kinetics. Advisor: Dr. Hai-Lung Dai.
Professional Appointments
Physicist, Photon Sciences Division, Brookhaven National Laboratory, 2008-present.
Research Scientist, Montana State University, 2001-2008. Beamline scientist/local contact for U4B Beamline at the Brookhaven National Lab as part of the MSU Magnetic Nanostructures Growth and Characterization Facility.
Postdoctoral Research Associate, Brookhaven National Laboratory, 1998-2001. Performed extensive research into the surface chemistry of sulfur and nitrogen containing molecules with model catalytic surfaces. This research addressed key issues related to sulfur poisoning of industrial catalysts and environmental pollution due to the use of sulfur containing fossil fuels.
Brookhaven National Laboratory
National Synchrotron Light Source II
Bldg. 741
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-5135
jdvorak@bnl.gov
