Double and single ionization of helium by 58-keV X rays

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.4685· OSTI ID:286003

Spielberger, L; Jagutzki, O; Kraessig, B; Meyer, U; Khayyat, K; Mergel, V; Tschentscher, T; Buslaps, T; Braeuning, H; Doerner, R; Vogt, T; Achler, M; Ullrich, J; Gemmell, D S; Schmidt-Boecking, H ^[1]

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1. Institut fuer Kernphysik, August-Euler-Strasse 6, D-60486 Frankfurt (Germany)

We have measured the ratio of cross sections for double to single ionization of helium by Compton scattering, {ital R}{sub {ital C}}={sigma}{sub {ital C}}{sup ++}/{sigma}{sup +}{sub {ital C}}, at a photon energy of 58 keV using cold target recoil ion momentum spectroscopy. We find a value {ital R}{sub {ital C}}=(0.84{sub {minus}0.11}{sup +0.08}){percent} that is in agreement with the asymptotic limits predicted by Andersson and Burgd{umlt o}rfer [Phys. Rev. A {bold 50}, R2810 (1994)] and Suri{acute c} {ital et} {ital al}.[Phys. Rev. Lett. {bold 73}, 790 (1994)]. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286003
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPTON EFFECT
CROSS SECTIONS
HELIUM
ION SPECTROSCOPY
IONIZATION
KEV RANGE 10-100
LIGHT SCATTERING
PHOTONS
X-RAY SOURCES