Double photoionization into double core-hole states in Xe.
Double photoionization (DPI) leading to double core-hole states of Xe2+ 4d(-2) has been studied using a magnetic bottle time-of-flight spectrometer. The assignments of the Xe2+ 4d(-2) states are confirmed by the Auger lines extracted from fourfold coincidences including two photoelectrons and two Auger electrons. It is estimated that the core-core DPI into Xe2+ 4d(-2) at a photon energy of 301.6 eV has a favored cross section of about 0.3 MB. The intense core-core DPI is due to mixing of the 4d(-2) continuum with the 4p single photoionization, which is manifested in the relative intensities of the Xe2+ 4d(-2) components.
Hikosaka
Y
Y
UVSOR Facility, Institute for Molecular Science, Okazaki 444-8585, Japan.
Lablanquie
P
P
Penent
F
F
Kaneyasu
T
T
Shigemasa
E
E
Eland
J H D
JH
Aoto
T
T
Ito
K
K