Sergey Stepanov
CURRICULUM VITAE
Beamline Controls Scientist, Controls Group Leader (since 2006)
Lead a group of four scientists and software developers to design beamline controls and data acquisition system for three macromolecular crystallography beamlines at the Advanced Photon Source (APS). Continue developing and expanding the X-ray Server for internet-based analysis of X-ray Bragg diffraction, reflectivity and scattering data and the studies of X-ray magnetic scattering.
USA
Research Associate Professor of Physics (IIT), Beamline Scientist (BioCAT)
Participated in the construction and operation of undulator-based BioCAT beamline at the Advanced Photon Source. Designed EPICS-based beamline controls including programming tools for data acquisition and automatic beamline setup and alignment. Supported XAFS and SAXS experiments at the beamline carried by various research groups. Provided administration of BioCAT computers and designed the BioCAT Web site. Studied X-ray reflectivity by magnetic multilayers under the condition of resonant magnetic scattering. Developed the X-ray Server for internet-based calculations in the fields of X-ray Bragg diffraction, reflectivity and scattering.
USA
Guest Researcher
Developed theories and computer programs for the analysis of thin surface structures (multilayers, quantum wires, quantum dot arrays, etc.) with the techniques of grazing incidence X-ray diffraction and scattering. Applied those developments to studies of A3B5 superlattices and quantum wires. Designed and performed synchrotron X-ray radiation experiments at DESY and ESRF. Supervised postgraduate students.
GERMANY
Senior Research Associate
Theoretically studied parametric X-ray radiation by relativistic electrons in crystals under conditions of multiple Bragg diffraction and explained 3- and 8-wave parametric X-ray experiments. Developed a new approach to multiple Bragg diffraction of X-rays. Provided detailed theoretical and experimental analysis of X-ray surface back diffraction. Participated in X-ray studies of optical crystals for lasers and scintillators. Gave lectures on X-ray diffraction to graduate students and supervised MS diploma students.
BELARUS
Research Fellow
Studied grazing incidence X-ray diffraction (GID) from imperfect crystals. Developed new techniques for investigation of semiconductor materials with GID. Suggested and theoretically justified the Bragg-Laue diffraction geometry for surface-sensitive X-ray material science. Defended the Ph.D. thesis.
RUSSIA
Research Engineer of Special Design & Technology Office
Carried out theoretical and computer support for the application of X-ray Bragg diffraction to studies of silicon wafers at various stages of the integrated circuit production.
BELARUS
Ph.D. in Physics (Candidate of Physical-Mathematical Sciences).
Thesis title: "Extension of grazing incidence X-ray diffraction theory to crystals with surface imperfections".
RUSSIA
M.S. in Physics.
Subject of examination: theoretical physics.
BELARUS
More than 120 work-related publications. View the complete list, or the list of major papers, or read selected reprints online.
Hardware: IBM PC, SUN/SPARC, SGI, IBM RISC/6000, VAX, PDP11, VME, CAMAC.
System administration: Redhat Linux, Solaris, IRIX, MS Windows, VMS, RSX.
Programming languages: C, FORTRAN, Perl, Tcl/Tk, HTML, CGI, BASIC, and ASSEMBLER for PC.
Other software: TeX, Word, Corel Draw, Origin, Surfer, ...
Projects: Authoring X-ray Server.
Married Mrs. Elena Kondrashkina who is also X-ray physicist (Ph.D.) and coauthor in many studies. Have one daughter Liza currently pursuing her D.M.A. in piano at The Juilliard School in New York.