Open AccessRatio of Cross Sections for Double to Single Ionization of He by 85–400 eV Photons
Author(s) -
R. Dörner,
T. Vogt,
V. Mergel,
H. Khemliche,
S. Kravis,
C. L. Cocke,
J. Ullrich,
M. Unverzagt,
L. Spielberger,
M. Damrau,
O. Jagutzki,
I Ali,
Bradley W. Weaver,
K. Ullmann,
Chin-Wei Hsu,
Matthias Jung,
E. P. Kanter,
B. Sonntag,
M. H. Prior,
Eli Rotenberg,
J. D. Denlinger,
Tony Warwick,
Steven T. Manson,
H. SchmidtBöcking
Publication year - 1996
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.76.2654
Subject(s) - photon , ionization , recoil , physics , atomic physics , range (aeronautics) , double ionization , nuclear physics , ion , momentum (technical analysis) , spectroscopy , materials science , optics , quantum mechanics , finance , economics , composite material
The ratio of double to single ionization of He by 85{endash}400 eV photons has been measured using cold target recoil ion momentum spectroscopy. This technique allows the elimination of all possible systematic errors discussed so far in the literature on this subject. We find the ratio in this energy range to be about 25{percent} lower than previously assumed. {copyright} {ital 1996 The American Physical Society.}
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