Results 61 to 70 of about 5,389 (204)
AtomsWe report experimental measurements of the absolute photoionization cross sections for chlorine ions in different stages of ionization, over photon energy ranges corresponding to the L-shell (2s and 2p subshells) excitations.
Jean-Paul Mosnier +4 more
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Nature Communications, 2022 Photoionization time delays provide insights on the interaction of photon with the electrons. Here the authors explore the role of the molecular potential to the attosecond time delays in the photoionization of CF4 molecule.
H. Ahmadi +11 more
doaj +1 more source
First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique
Mass Spectrometry Reviews, EarlyView.ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley +1 more source
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 +7 more
wiley +1 more source
, 2014 Citation: 'photoionization' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04620 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source
AtomsAccurate determination of opacity is critical for understanding radiation transport in both astrophysical and laboratory plasmas. We employ atomic data from R-Matrix calculations to investigate radiative properties in high-energy-density (HED) plasma ...
Anil K. Pradhan, Sultana N. Nahar
doaj +1 more source
Rapid Communications in Mass Spectrometry, EarlyView.ABSTRACT Rationale Poly (acrylates)s can be distinguished from one another by the nature of their side chains. From model poly (acrylates)s, the purpose of this work was to evaluate the contribution of alternative activation techniques to the collisional activation, based on ion–ion and ion–photon interactions.
Inès Aloui +5 more
wiley +1 more source
Rapid Communications in Mass Spectrometry, EarlyView.Rationale Surface‐assisted laser desorption/ionization (SALDI) mass spectrometry (MS) builds on the use of nanostructured surfaces (e.g., coatings of colloidal nanoparticles) to promote analyte desorption and ionization. The SALDI process is believed to occur mainly through thermal processes, resulting from heating of the nanosubstrate upon absorption ...
Wendy H. Müller +3 more
wiley +1 more source
Potential‐Dependent Reversible Restructuring of Pt–Au Alloy Electrocatalysts
Small, EarlyView.Using electrochemical X‐ray photoelectron spectroscopy (XPS), we show that Pt–Au alloys adjust their surface elemental composition to the applied electrochemical conditions. The surface dynamics are found to be highly reversible, even at room temperature, suggesting that dynamic restructuring of alloy nanoparticles occurs in a wide range of conditions,
Jan Sebastian Dominic Rodriguez +8 more
wiley +1 more source
Benchmarking Current Capabilities for the Generation of Excitation and Photoionisation Atomic Data
Galaxies, 2018 The spectra currently emerging from modern ground- and space-based astronomical instruments are of exceptionally high quality and resolution. To meaningfully analyse these spectra, researchers utilise complex modelling codes to replicate the observations.
Catherine Ramsbottom +6 more
doaj +1 more source