TEMPERATURE DEPENDENCE OF HELIUM TRANSFER CROSS SECTIONS.
Scientific rept. Jan 65-Mar 66.
OKLAHOMA UNIV RESEARCH INST NORMAN
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Helium gas at a pressure of 63 microns and variable temperature has been excited by the impact of 100 eV electrons. At this pressure atomic collisions are plentiful and the excitation energy is thereby transferred from one state to another, primarily from singlet states to singlet and triplet D states. The multiple state transfer process transfer from N-singlet-P to nF and cascade from nF to lower singlet and triplet D states is examined in light of the data acquired on the density of singlet P states for n from 3 through 8, singlet D states for n from 4 through 6, and triplet D states for n from 3 through 10. These data were acquired at 8 temperatures in the range from 300 to 1000K. Author
- Atomic and Molecular Physics and Spectroscopy