DOUBLE AND SINGLE IONIZATION OF HELIUM BY 58-KEV X-RAYS

Authors
SPIELBERGER L JAGUTZKI O KRASSIG B MEYER U KHAYYAT K MERGEL V TSCHENTSCHER T BUSLAPS T BRAUNING H DORNER R VOGT T ACHLER M ULLRICH J GEMMELL DS SCHMIDTBOCKING H
Citation
L. Spielberger et al., DOUBLE AND SINGLE IONIZATION OF HELIUM BY 58-KEV X-RAYS, Physical review letters, 76(25), 1996, pp. 4685-4688
Citations number
27
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
25
Year of publication
1996
Pages
4685 - 4688
Database
ISI
SICI code
0031-9007(1996)76:25<4685:DASIOH>2.0.ZU;2-A
Abstract
We have measured the ratio of cross sections for double to single ioni zation of helium by Compton scattering, R(C) = sigma(C)(++)/sigma(C)(), at a photon energy of 58 keV using cold target recoil ion momentum spectroscopy. We find a value R(C) = (0.84(-0.11)(+0.08))% that is in agreement with the asymptotic limits predicted by Andersson and Burgdo rfer [Phys. Rev. A 50, R2810 (1944)] and Suric et al. [Phys. Rev. Lett . 73, 790 (1994)].