Absolute total cross-section measurements for electron collisions with tetrahydrofuran
- Atomic Physics Division, Department of Atomic Physics and Luminescence, Faculty of Applied Physics and Mathematics, Gdansk University of Technology, ul. G. Narutowicza 11/12, 80-952 Gdansk (Poland)
The absolute total cross section (TCS) for electron collisions with tetrahydrofuran C{sub 4}H{sub 8}O in the gas phase has been measured using the linear transmission technique within 1-370 eV energy range. The total cross section function for e{sup -}-C{sub 4}H{sub 8}O collisions is characterized by the relatively high magnitude and the broad enhancement spanned between 4 and 12 eV, with some resonantlike structures. This enhancement can be explained as a result of overlapping core-excited resonances. At higher collision energies the magnitude of the measured total cross section monotonically decreases with the energy increase. At low impact energies some additional weak resonant features are visible near 1.9 and 3.5 eV. The reported TCS results are higher by 30% than recently published by Zecca et al. [J. Phys. B 38, 2079 (1995)]. They are also distinctly different from the recent R-matrix calculations. At intermediate energy range the present data agree well with the sum of calculated elastic and ionization cross sections.
- OSTI ID:
- 20852912
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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