TY - JOUR
T1 - Photoionization of tungsten ions with synchrotron radiation
AU - Müller, A.
AU - Schippers, S.
AU - Kilcoyne, A. L.D.
AU - Esteves, D.
PY - 2011
Y1 - 2011
N2 - Photoionization experiments were performed with tungsten ions using a photon-ion merged-beams setup at the Advanced Light Source. Cross-sections σq,q+1 for photon-induced single ionization of Wq+ ions (q=1,2,3,5) and σq,q+2 for photon-induced double ionization of W+ ions have been explored in the energy range 20-70 eV. While σq,q+1 for the lower charge states is dominated by broad resonance features in the range of 4f and 5p excitations, the cross-section σ5, 6 shows much narrower peak features. Significant contributions from initial metastable states are evident. Double ionization is substantially enhanced at energies above the threshold for single ionization of a 4f electron in W+.
AB - Photoionization experiments were performed with tungsten ions using a photon-ion merged-beams setup at the Advanced Light Source. Cross-sections σq,q+1 for photon-induced single ionization of Wq+ ions (q=1,2,3,5) and σq,q+2 for photon-induced double ionization of W+ ions have been explored in the energy range 20-70 eV. While σq,q+1 for the lower charge states is dominated by broad resonance features in the range of 4f and 5p excitations, the cross-section σ5, 6 shows much narrower peak features. Significant contributions from initial metastable states are evident. Double ionization is substantially enhanced at energies above the threshold for single ionization of a 4f electron in W+.
UR - http://www.scopus.com/inward/record.url?scp=80051679602&partnerID=8YFLogxK
U2 - 10.1088/0031-8949/2011/T144/014052
DO - 10.1088/0031-8949/2011/T144/014052
M3 - Conference article
AN - SCOPUS:80051679602
SN - 0281-1847
VL - T144
JO - Physica Scripta T
JF - Physica Scripta T
M1 - 014052
T2 - 15th International Conference on the Physics of Highly Charged Ions, HCI2010
Y2 - 29 August 2010 through 3 September 2010
ER -