Single-hemisphere photoelectron momentum microscope with time-of-flight recording

G Schönhense, S Babenkov, D Vasilyev… - Review of Scientific …, 2020‏ - pubs.aip.org
Photoelectron momentum microscopy is an emerging powerful method for angle-resolved
photoelectron spectroscopy (ARPES), especially in combination with imaging spin filters …

State-resolved differential cross sections of single-electron capture in swift collisions of ) ions with gas targets

I Madesis, A Laoutaris, S Nanos, S Passalidis… - Physical Review A, 2022‏ - APS
We report on double and single differential cross section measurements of the 1 s 2 s 2 S 2,
1 s 2 s 2 p P±2, and 1 s 2 s 2 p P 4 doubly excited states produced by single-electron …

Pauli shielding and breakdown of spin statistics in multielectron multi-open-shell dynamical atomic systems

I Madesis, A Laoutaris, TJM Zouros, EP Benis… - Physical Review Letters, 2020‏ - APS
We report on C 3+(1 s 2 ℓ 2 ℓ′ L 2 S+ 1)-resolved cross sections of electron capture in
collisions of swift C 4+(1 s 2 s S 3) ions with helium and hydrogen. The study focuses on the …

Determination of the 1s2 {\ell} 2 {{\ell}}^{\prime} state production ratios {{}^{4} P}^{o}/{}^{2} P,{}^{2} D/{}^{2} P and {{}^{2} P} _ {+}/{{}^{2} P} _ {-} from fast (1 {s}^{2}, 1s2s …

EP Benis, TJM Zouros - Journal of Physics B Atomic …, 2016‏ - ui.adsabs.harvard.edu
New results are presented on the ratio {R} m={σ}{T 2p}({} 4 P)/{σ}{T 2p}({} 2 P) concerning
the production cross sections of Li-like 1s2s2p quartet and doublet P states formed in …

Determination of the ion beam energy width in tandem Van de Graaff accelerators via Auger projectile spectroscopy

S Nanos, A Biniskos, A Laoutaris, M Andrianis… - Nuclear Instruments and …, 2023‏ - Elsevier
Fast ion beams delivered by tandem Van de Graaff accelerators intrinsically have an energy
width, Δ EP/EP, due to the voltage ripple of the accelerator, the production mechanism of the …

Mixed-state ionic beams: An effective tool for collision dynamics investigations

EP Benis, I Madesis, A Laoutaris, S Nanos, TJM Zouros - Atoms, 2018‏ - mdpi.com
The use of mixed-state ionic beams in collision dynamics investigations is examined. Using
high resolution Auger projectile spectroscopy involving He-like (1 s 2 1 S, 1 s 2 s 3, 1 S) …

Experimental determination of the effective solid angle of long-lived projectile states in zero-degree Auger projectile spectroscopy

EP Benis, I Madesis, A Laoutaris, S Nanos… - Journal of Electron …, 2018‏ - Elsevier
In zero-degree Auger projectile spectroscopy (ZAPS), electrons are measured with high
energy resolution at 0° with respect to the beam direction and state-selective cross sections …

Evaluation of the effective solid angle of a hemispherical deflector analyser with injection lens for metastable Auger projectile states

EP Benis, S Doukas, TJM Zouros, P Indelicato… - Nuclear Instruments and …, 2015‏ - Elsevier
The accurate determination of the electron yield of a metastable projectile Auger state
necessitates the careful evaluation of the corresponding effective solid angle, ie the …

Evidence for the non-statistical population of the 1s2s2p 4P metastable state by electron capture in 4 MeV collisions of B3+ (1s2s 3S) with H2 targets

EP Benis, S Doukas, TJM Zouros - … Methods in Physics Research Section B …, 2016‏ - Elsevier
We have revisited previously published data involving collisions of mixed 4 MeV B 3+(1 s 2
1 S, 1 s 2 s 3 S) with H 2 targets (Benis et al., 2002) in search of evidence for the non …

Projectile electron spectroscopy and new answers to old questions: Latest results at the new atomic physics beamline in Demokritos, Athens

I Madesis, A Laoutaris, TJM Zouros… - State-of-the-Art …, 2019‏ - World Scientific
Over the last few decades, considerable progress has been made to obtain information on
both the atomic structure and collision dynamics of multiply excited atomic states using high …