-
Article
Interference effects in 1s → π* resonance excitation processes of the no molecule
A 1Π → X 1Σ+ fluorescence in the NO+ molecular ion observed after Auger decay of the 1s −1 π* resonances of the N*O...
-
Article
Lifetime vibrational interference during the NO 1s-1π* resonant excitation studied by the NO+(A 1Π → X 1Σ+) fluorescence
Dispersed fluorescence from fragments formed after the de-excitation of the 1s-1π* resonances of N*O and NO* has been measured in the spectral range of 118–142 nm. This range is dominated by lines of atomic nitro...
-
Article
The predissociation of the 2σ u −1 (c 4Σ u − , v states of the oxygen molecular ion
The dynamics of predissociation of the 2σ u −1 (c 4Σ u ...
-
Article
Investigation of N 2 + (C 2Σ u + → X 2Σ g + fluorescence excited through auger decay of the 1s −1π* resonance
A theoretical investigation of N 2 + (C 2Σ u + → X 2Σ g ...
-
Article
Investigation of photoionization and photodissociation of an oxygen molecule by the method of coupled differential equations
The photoionization and photodissociation of an oxygen molecule are investigated theoretically by the method of coupled differential equations. The molecular orbitals of the core are calculated in the MO LCAO ...
-
Article
Many-electron character of Rydberg series converging to the ionization thresholds of the 4p 45s states of KrII
The photoionization cross sections of the 4p shell and the 4s main level and 4p 4(3 P) 5s 4 P ...
-
Article
Interference effects in alignment and orientation processes of atoms excited by polarized radiation
The dynamics of the processes of alignment and orientation of atoms subjected to the action of polarized radiation has been studied theoretically in the energy range of excitation of autoionization resonances....
-
Article
Proton and electron impact on molecular and atomic oxygen: II. Emission cross-sections for ionisation and excitation of atomic oxygen
Ionisation and excitation of atomic oxygen in collisions with protons and electrons were studied experimentally in the intermediate velocity range applying the method of fluorescence spectroscopy. Absolute emi...
-
Article
Proton and electron impact on molecular and atomic oxygen: I. High resolution fluorescence spectra in the visible and VUV spectral range and emission cross-sections for dissociative ionisation and excitation of
Molecular oxygen O2 was dissociated in collisions with protons and electrons in the intermediate velocity range (p+-energies: 17-800 keV, e--energies: 0.2-2 keV). Fluorescence from excited atomic and singly ionis...
-
Article
Relativistic effects in photoabsorption of the outer atomic shells
Photoionization cross sections and angular electron distribution parameters in the photoionization of the subvalent shells of Kr and Xe atoms are calculated. The configuration interaction theory and the pertur...
-
Article
Intercombination transition rates in Al-like ions
N =3, intercombination transitions in Al-like ions of Au have been studied by time-resolved EUV spectroscopy of foil-excited ion beams. Wavelengths and lifetimes are compare...
-
Chapter
Resonances and Near-Threashold Processes
Something interesting often happens when a reaction mechanism is excited close to its threshold. The process of photoionization is no exception. Here the incident photon excites the ionic state just above its ...
-
Article
Time resolved EUV spectroscopy on foil-excited 5.9 MeV/u Xe and 13.2 MeV/u Au ions
N=3, Δn=0 transitions in Na-like ions have been observed and the resonance level lifetimes have been measured by time-resolved spectroscopy of foil-excited ion beams of Xe (Z=54) and Au (Z=79). Other lines in th...
-
Article
Double photoionization of argon into the 3s3p 5 1 P- and3 P-states
Double photoionization of argon was studied by photon induced fluorescence spectroscopy (PIFS). Cross sections for the double photoionization into the 3s3p 5 1 P,3 P states of Ar++ are presented for exciting phot...
-
Article
EUV-spectroscopy of beam-foil excited 14.25 MeV/u Xe52 + ... Xe49 + -ions
14.25 MeV/u Xe — ions with chargesq=52, 51, 50 and 49 were sent through carbon foils of 50 µg/cm2. Beam — foil spectra between 6 nm and 14 nm were registered using the GSI 5 m grazing incidence spectrometer. The ...
-
Article
Strong contributions from rydberg transitions in EUV radiation from beam-foil excited heavy ions at 1.4 MeV/u
Beam-foil spectra from 1.4 MeV/u Ne6+-, Ni17+- and Xe24+-ions transversing thin C-foils were recorded in the wavelength range from 40 Å to 280 Å. A 5 m grazing incidence spectrometer equipped with a position-sens...
-
Article
EUV spectra from Ne and Ar recoil ions induced by 1.4 MeV/u heavy ion beams
V15+-, Ni17+-, Xe25+- and U32+-ions at 1.4 MeV/u were used to ionize and excite Ne and Ar atoms. Spectra with wavelengths between 8 nm and 25 nm were recorded. Using tabulated wavelength values, the wavelength sc...
-
Article
Excitation of He—41 D-substates by He+- and Ne+-projectiles investigated by level-crossing techniques
Collisions of He+- and Ne+-projectiles with He at impact energies between 90 keV and 800 keV were investigated. Relative excitation cross sections for magnetic sublevels of He—41 D were determined using level-cro...
-
Chapter and Conference Paper
EUV spectra from Ne and Ar recoil ions induced by 1.4 MeV/u heavy ion beams
V15+-, Ni17+-, Xe25+- and U32+-ions at 1.4 MeV/u were used to ionize and excite Ne and Ar atoms. Spectra with wavelengths between 8 nm and 25 nm were recorded. Using tabulated wavelength values, the wavelength sc...
-
Chapter and Conference Paper
Strong contributions from Rydberg transitions in EUV radiation from beam-foil excited heavy ions at 1.4 MeV/u
Beam-foil spectra from 1.4 MeV/u Ne6+-, Ni17+- and Xe24+ -ions transversing thin C-foils were recorded in the wavelength range from 40 Å to 280 Å. A 5 m grazing incidence spectrometer equipped with a position-sen...
