Results 51 to 60 of about 26,112 (242)

Decoherence in Attosecond Photoionization

Physical Review Letters, 2011
The creation of superpositions of hole states via single-photon ionization using attosecond extreme-ultraviolet pulses is studied with the time-dependent configuration interaction singles (TDCIS) method. Specifically, the degree of coherence between hole states in atomic xenon is investigated.
Pabst, Stefan, Greenman, L., Ho, P., Mazziotti, D., Santra, Robin   +4 more
openaire   +5 more sources

Branching ratios in the dissociative photoionization of iodomethane by photoelectron photoion coincidence

Physical Chemistry Chemical Physics, 2023
Internal energy selected valence ionized iodomethane exhibits more than 20 fragmentation pathways, identified based on the breakdown diagram, the kinetic energy release, and the known dissociative ionization energies.
Andras Bodi, Arnar Hafliðason, Ágúst Kvaran   +2 more
openaire   +3 more sources

Perspectives of High‐Resolution Mass Spectrometry in Soil Science

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Soil biogeochemical research requires specific, sensitive, and accurate methods to identify and quantify organic molecules in order to trace biochemical processes and assess element cycling in complex, heterogenous systems. High‐resolution mass spectrometry (HRMS) has evolved into a transformative tool for unraveling the complex chemical ...
Bruno Glaser, Tobias Bromm, Klaus Kaiser, Arthur Gross, Carsten Simon, Snežana Maletić, Ines Mulder, Oliver J. Lechtenfeld, Sören Thiele‐Bruhn, Ivy Notterpek, Callum Banfield, Michaela A. Dippold   +11 more
wiley   +1 more source

Theoretical insights into L X-ray emission anisotropy and polarization in high-Z elements [PDF]

Ядерна фізика та енергетика
A comprehensive theoretical study of the angular anisotropy and linear polarization of characteristic L-shell X-ray emission from high-Z atoms (tantalum, tungsten, rhenium, iridium, gold, and thallium) produced by photoionization with unpolarized photons
V. K. Garg, M. Gupta, M. K. Tiwari, A. Sharma   +3 more
doaj   +1 more source

The 5d-6p VUV Photoabsorption Spectrum of Bi⁺

Atoms, 2020
The photoabsorption spectrum of Bi+ was measured in the wavelength range between 37 and 60 nm, using the dual laser plasma technique in which one plasma is used as the source of vacuum ultraviolet continuum radiation and the other plasma is used as the ...
Hu Lu, Lazaros Varvarezos, Patrick Hayden, Eugene T Kennedy, Jean-Paul Mosnier, John T Costello   +5 more
doaj   +1 more source

Photoionization Observables from Multi-Reference Dyson Orbitals Coupled to B-Spline DFT and TD-DFT Continuum

Molecules, 2022
We present a theoretical model to compute the accurate photoionization dynamical parameters (cross-sections, asymmetry parameters and orbital, or cross-section, ratios) from Dyson orbitals obtained with the multi-state complete active space perturbation ...
Bruno Nunes Cabral Tenorio, Aurora Ponzi, Sonia Coriani, Piero Decleva   +3 more
doaj   +1 more source

Mass Spectrometry in Authentication and Forensic Approaches for Determining the Origin of Hazardous Chemicals

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Identification of a chemical agent yields insights into its physicochemical properties. By examining the intrinsic characteristics and environment of a compound, information about its history can be gathered. The main objective of authentication/forensic approaches to chemicals is to trace the history of the compound's origin, regardless of ...
Carla Orlandi, Grégoire Delaporte, Christine Albaret, Emmanuel Joubert, Anne Bossée, Emilien L. Jamin, Laurent Debrauwer   +6 more
wiley   +1 more source

Electron asymmetries in the photoionization of chiral molecules: possible astrophysical implications

Advances in Physics: X, 2018
Photoelectron circular dichroism (PECD) is an intense orbital-specific chiroptical effect observed as asymmetries in the angular distribution of photoelectrons produced by photoionization of randomly oriented pure enantiomers with circularly polarized ...
Rim Hadidi, Dusan K. Bozanic, Gustavo A. Garcia, Laurent Nahon   +3 more
doaj   +1 more source

Circular Dichroism in the Photoionization of Unpolarized Atoms by Two Crossing Photon Beams

Atoms, 2021
The polarization dependence of the photoionization probability was analyzed in the case when a randomly oriented atom is irradiated by two crossing polarized monochromatic photon beams with the same frequency.
Alexei V. Meremianin, Nikolai L. Manakov
doaj   +1 more source

Lightning electromagnetic emission location using arrival time differencing (LEELA): An introduction to the Met Office's next generation Very Low Frequency lightning location system

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This paper describes the Met Office's new lightning location system LEELA. A brief overview of the upgraded hardware and geolocation algorithms is given. LEELA has improved lightning detection capabilities, especially at night. When comparing LEELA to the previous ATDnet system against ground truths LEELA has 100% storm detection efficiency within 5 km
Graeme Marlton, Mike Protts, Stephen Prust, Edmund Keith Stone, Debbie O'Sullivan, Sue Twelves, Francesco Devoto, Claire Witham   +7 more
wiley   +1 more source