Experimental separation of photoabsorption and Compton scattering contributions to He single and double ionization
Journal Article
·
· AIP Conference Proceedings
- Institut fuer Kernphysik, Universitaet Frankfurt, D60486 Frankfurt/M., Germany, D60486 Hamburg (Germany)
We have experimentally separated the contributions of photoabsorption and Compton scattering to He single and double ionization for high-energy photon impact by measuring the full momentum vector of the recoiling He{sup 1+,2+} ions. For recoil ions following photoabsorption large momenta and a distinct dipole emission pattern are observed. The ions produced by Compton scattering show small momenta. For the ratio of double to single ionization we find (1.22{+-}.06)% at 8.8{sup +1.5}-1.65 keV for Compton scattering and (1.72{+-}.12)% at 7.0{sup +2.1}-1.6 keV for photoabsorption. We compare our data with recent theories.
- OSTI ID:
- 21156256
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 360; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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