Results 11 to 20 of about 1,126,427 (279)
Chemical Reviews, 2017 Until a decade ago, the only anion observed to play a prominent role in astrophysics was H-. The bound-free transitions in H- dominate the visible opacity in stars with photospheric temperatures less than 7000 K, including the Sun. The H- anion is also believed to have been critical to the formation of molecular hydrogen in the very early evolution of ...
Millar, Thomas J. +2 more
openaire +5 more sources
Overview of the design of the ITER heating neutral beam injectors [PDF]
New Journal of Physics, 2017 The heating neutral beam injectors (HNBs) of ITER are designed to deliver 16.7 MW of 1 MeV D ^0 or 0.87 MeV H ^0 to the ITER plasma for up to 3600 s. They will be the most powerful neutral beam (NB) injectors ever, delivering higher energy NBs to the ...
R S Hemsworth +14 more
doaj +2 more sources
Bactericidal action of positive and negative ions in air [PDF]
BMC Microbiology, 2007 Background In recent years there has been renewed interest in the use of air ionisers to control of the spread of airborne infection. One characteristic of air ions which has been widely reported is their apparent biocidal action.
Sleigh P Andrew +6 more
doaj +5 more sources
Ion-Pair Formation in Neutral Potassium-Neutral Pyrimidine Collisions: Electron Transfer Experiments
Frontiers in Chemistry, 2019 We report novel data on ion-pair formation in hyperthermal (30–800 eV) neutral potassium collisions with neutral pyrimidine (Pyr, C4H4N2) molecules. In this collision regime, negative ions formed by electron transfer from the alkali atom to the target ...
Mónica Mendes +8 more
doaj +1 more source
East European Journal of Physics, 2021 The enhancement of negative ion production in a volume Penning based source could be performed by the application of metal hydride cathode. Hydrogen isotopes are stored there in a chemically bound atomic state and desorbed from the metal hydride under ...
Ihor Sereda +2 more
doaj +1 more source
Effect of Negative Ion Generation on Complex Plasma Structure Properties
Molecules, 2022 We propose a low-density discharge plasma model that takes into account the impact of oxygen admixture in typical conditions of complex (dusty) plasmas.
Andrey V. Zobnin +2 more
doaj +1 more source
Vojnotehnički Glasnik, 2016 The paper describes a new phenomenon of the generation of the double electrical layer above the cathode spot surface. The neutralization of this layer leads to the reverse current of free electrons, generated due to negative ions ionization.
Leonid I. Gretchikhin +2 more
doaj +1 more source
Multiphoton detachment of electrons from negative ions [PDF]
, 1997 A simple analytical solution for the problem of multiphoton detachment from negative ions by a linearly polarized laser field is found. It is valid in the wide range of intensities and frequencies of the field, from the perturbation theory to the ...
A. A. Radtsig +36 more
core +3 more sources
Fragmentation of metal(II) bis(acetylacetonate) complexes induced by slow electrons
Beilstein Journal of Nanotechnology, 2023 Nowadays, organometallic complexes receive particular attention because of their use in the design of pure nanoscale metal structures. In the present work, we present results obtained from a series of studies on the degradation of metal(II) bis ...
Janina Kopyra, Hassan Abdoul-Carime
doaj +1 more source
Retrieval of electron-atom scattering cross sections from laser-induced electron rescattering of atomic negative ions in intense laser fields [PDF]
, 2007 We investigated the two-dimensional electron momentum distributions of atomic negative ions in an intense laser field by solving the time-dependent Schrodinger equation (TDSE) and using the first- and 2nd-order strong-field approximations (SFA).
Chen, Zhangjin +4 more
core +4 more sources