Electron-atom collision studies using optically state selected beams. Progress report, May 15, 1988--May 14, 1991 [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1990.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 29 pages : digital, PDF file
Additional Creators:: United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

This report discusses progress made during the current contract period on the authors research program to study collisions between spin-polarized electrons and spin-polarized atoms. The objective of this work is to stimulate a deeper theoretical understanding of the electron-atom interaction by providing the most complete possible experimental characterization of the colliding system. Through the use of optical state preparation techniques to prepare both the incident electrons and atom in well-defined initial states, the authors are able to extract substantially more information about the scattering process than is available from more conventional measurements of differential scattering cross sections. Their primary interest is to study in detail the role played by spin in electron-atom collisions at low to intermediate energies. The additional information provided by these spin-dependent measurements greatly enhances understanding of both exchange and the spin-orbit interaction in the scattering process. During this three-year period they have made substantial progress in measurements of both elastic and superelastic scattering of spin-polarized electrons from optically pumped sodium. The elastic scattering measurements in particular were made possible by several important improvements to the experimental apparatus.

Report Numbers:

E 1.99:doe/er/13520--t2
doe/er/13520--t2

Subject(s):

Atomic And Molecular Physics

Other Subject(s):

Note:

Published through SciTech Connect.
11/15/1990.
"doe/er/13520--t2"
"DE95004447"
Kelley, M.H.; Celotta, R.J.
National Inst. of Standards and Technology (NML), Gaithersburg, MD (United States). Electron and Optical Physics Div.

Type of Report and Period Covered Note:

Interim; 01/01/1988 - 12/31/1991

Funding Information:

AI01-86ER13520

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