A STUDY OF THE ELECTRIC DEFLECTION OF MOLECULAR BEAMS.
Scientific interim rept.,
MIDWEST RESEARCH INST KANSAS CITY MO
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A classical electric deflection apparatus, incorporating ultra-high vacuum technology and mass spectrometric detection, has proven to operate satisfactorily in tests with Na, K, and NaCl species. An ion counting system for use with modulated beams is operational. Attempts to operate a bakeable tuning fork, to permit time-of-flight velocity distribution analysis, have been hampered by mechanical problems connected with the bakeout requirement. An examination of Hall and Zorns recent results, however, indicates that with our ability to operate the entire beam system at 1 x 10 to the -8th power torr or less, it may not be necessary to perform velocity selected experiments. Computer data reduction schemes for polarizable nonpolar molecules and for linear molecules with dipole moments and polarizability are in use. The power of universal detection is illustrated by the first measurements of the polarizability of Na2 and Na2Cl2. The latter shows an unexplained, large polarizability, at least raising the question of the validity of simple ionic models for such species. Author
- Atomic and Molecular Physics and Spectroscopy