Valence double ionization of O2 at photon energies below and above the molecular double ionization threshold

2005 ◽  
Vol 122 (14) ◽  
pp. 144308 ◽  
Author(s):  
R. Feifel ◽  
J. H. D. Eland ◽  
D. Edvardsson
Keyword(s):  
Double Ionization ◽  
Ionization Threshold

Photoionization phenomena near the double-ionization threshold of helium

1991 ◽  
Vol 24 (1) ◽  
pp. 115-125 ◽  
Author(s):  
R I Hall ◽  
L Avaldi ◽  
G Dawber ◽  
M Zubek ◽  
K Ellis ◽  
...  
Keyword(s):  
Double Ionization ◽  
Ionization Threshold

Interchannel interactions and series quenching in the 5d and 6s spectra of Pb I

1977 ◽  
Vol 357 (1691) ◽  
pp. 499-512 ◽  
Keyword(s):  
Absorption Spectrum ◽  
Double Ionization ◽  
Low Energy ◽  
Ionization Threshold ◽  
In Series ◽  
Channel Interactions ◽  
Spectator Model

The absorption spectrum of lead vapour in the range 320-1070 A has been obtained. More than 60 transitions have been, found, mostly arrangable in series, which are due to excitation of either a 5d or 6s electron. Pronounced inter-channel interactions occur, similar to those in the corresponding spectrum of Tl I. Our observations confirm the applicability of a ‘ spectator model ’ for 6s excitation. The comparatively low energy of the double ionization threshold results in quenching of all but one 5d excitation series.

Two spectrometers for threshold photoelectron coincidence studies of double photoionization

1996 ◽  
Vol 74 (11-12) ◽  
pp. 856-860 ◽  
Author(s):  
M. Hochlaf ◽  
H. Kjeldsen ◽  
F. Penent ◽  
R. I. Hall ◽  
P. Lablanquie ◽  
...  
Keyword(s):  
Time Of Flight ◽  
Double Ionization ◽  
Coincidence Measurement ◽  
Ionization Threshold ◽  
Zero Energy ◽  
Field Technique ◽  
Double Photoionization

We present here two simple instruments for the study of double photoionization processes at threshold. They rely on the coincidence measurement of two near-zero energy electrons, which are collected by a penetrating field technique, and energy selected either by time-of-flight analysis (1st setup) or by electrostatic filtering in a hemispherical analyzer (2nd setup). Performance of the apparatus is demonstrated on Ar threshold double photoionization, and used to show the importance of two step double photoionization routes at Ar and Kr double ionization threshold.

scholarly journals Doubly Excited States in Helium Close to the Double Ionization Threshold: Angular and Energy Resolved Partial Cross Sections

2004 ◽  
Vol 110 ◽  
pp. 141 ◽  
Author(s):  
A. czasch ◽  
M. Sch�ffler ◽  
T. Jahnke ◽  
S. Sch�ssler ◽  
M. Hattrass ◽  
...  
Keyword(s):  
Excited States ◽  
Cross Sections ◽  
Double Ionization ◽  
Ionization Threshold ◽  
Doubly Excited States ◽  
Doubly Excited

Dependence of the 3s-Ar and 4s-Kr photoelectron spectra on the energy of exciting photons exceeding the double-ionization threshold

1994 ◽  
Vol 68 ◽  
pp. 255-265 ◽  
Author(s):  
V.L. Sukhorukov ◽  
B.M. Lagutin ◽  
I.D. Petrov ◽  
S.V. Lavrentiev ◽  
H. Schmoranzer ◽  
...  
Keyword(s):  
Double Ionization ◽  
Photoelectron Spectra ◽  
Ionization Threshold
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