COLLABORATION IN BASIC SCIENCE AND ENGINEERING (COBASE)

From September 1999 to June 2000, Samuel A. Werner hosted Eugene Iolin at University of Missouri-Columbia. Drs. Werner and Iolin were working on the development of a new differential scanning double-crystal neutron diffractometer. They conducted experiments on the neutron scattering studies of ultrasmall deformation in single silicon crystals and demonstrated that back face neutron scattering is quite sensitive to small deformations in silicon. Dynamical scattering theories were used to analyze the results.

The University of Missouri-Columbia was able to win funding additional to the COBASE grant, and this allowed Dr. Iolin to stay at their lab for an additional three months. Dr. Iolin himself wrote a proposal entitled "Application of High Frequency Ultrasound for Neutron Optical Components Development at the Spallation Neutron Source." He was able to report the results of the study at seminars at the Argonne National Laboratory and the National Center for Physical Acoustics at the University of Mississippi. Dr. Iolin is in the final stages of preparing a paper entitled "Propagation of Neutrons in a Perfect Silicon Crystal Slot Resonator." He plans to stay in the United States for an additional year, working at the Argonne National Laboratory.