Results 11 to 20 of about 422,709 (217)

Air ionisation variability in coastal and mountainous areas. Case studies from Romania [PDF]

open access: yesPresent Environment and Sustainable Development
Air ionisation is an important indicator of air quality, influenced by meteorological, geological, and topoclimatic factors, and may have implications for human health.
Adrian-Călin Ciuciu   +2 more
doaj   +1 more source

The Plasma Parameters of Penning Discharge with Negatively Biased Metal Hydride Cathode at Longitudinal Emission of H– Ions

open access: yesEast 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

open access: yesMolecules, 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

Double electrical layer in the cathode spot / Двойной электрический слой в катодном пятне / Dvostruki električni sloj u katodnom spotu

open access: yesVojnotehnički 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

Fragmentation of metal(II) bis(acetylacetonate) complexes induced by slow electrons

open access: yesBeilstein 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

Negative ion research at the Culham Centre for Fusion Energy (CCFE)

open access: yesNew Journal of Physics, 2016
A summary of negative ion development work being presently undertaken at the Culham Centre for Fusion Energy is given. The small negative ion facility has an RF driven volume ion source with beam extraction at energies up to 30 keV. The extracted beam of
R McAdams   +5 more
doaj   +1 more source

Resonance States of Negative Hydrogen-like Ions in Quantum Plasmas

open access: yesAtoms, 2023
We studied the 1Se and 1,3Po resonance states of negative hydrogen-like ions immersed in quantum plasmas. The exponential cosine screened Coulomb potential was considered to model the quantum plasma environment.
Suya Yao, Zishi Jiang, Sabyasachi Kar
doaj   +1 more source

Modeling of plasma transport and negative ion extraction in a magnetized radio-frequency plasma source

open access: yesNew Journal of Physics, 2017
Negative ion sources for fusion are high densities plasma sources in large discharge volumes. There are many challenges in the modeling of these sources, due to numerical constraints associated with the high plasma density, to the coupling between plasma
G Fubiani   +4 more
doaj   +1 more source

Overview of the design of the ITER heating neutral beam injectors

open access: yesNew 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   +1 more source

Effects of humidity on variation of negative corona-generated space charge in rod to plane electrode

open access: yesThe Journal of Engineering, 2019
The variation of negative corona-generated space charge related to the humidity has been systematically calculated and analysed by computational approaches.
Xingming Bian   +5 more
doaj   +1 more source

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