Results 11 to 20 of about 405,644 (263)
Formation of p-, n-conductivity in semiconductors / Формирование p-, n-проводимости в полупроводниках / Formiranje provodljivosti kod poluprovodnika P-tipa i N-tipa [PDF]
Vojnotehnički Glasnik, 2018 The paper considers the energy position of negative ions of impurity atoms in the band gap of a semiconductor. Owing to the Boltzmann law, the energy levels of negative ions in the vicinity of the conduction band supply electrons to the conduction ...
Leonid I. Gretchikhin
doaj +1 more source
Spectrum of the negative Be ion
Physical Review A, 1981 The existence of ${\mathrm{Be}}^{\ensuremath{-}}$ is established from electron correlation calculations which include one-, two-, three-, and four-orbital excitations. The discrete spectrum of ${\mathrm{Be}}^{\ensuremath{-}}$ consists of three states: $1{s}^{2}2s2{p}^{2} ^{4}P$, $1{s}^{2}2{p}^{3} ^{4}S^{o}$, and $1s2s2{p}^{3} ^{6}S^{o}$. The $^{4}S^{o}\
Beck, D. R. +3 more
openaire +1 more source
Negative ions and their role in the development of science and technology / Отрицательные ионы и их роль в развитии науки и технологии / Negativni joni i njihova uloga u razvoju nauke i tehnologije [PDF]
Vojnotehnički Glasnik, 2018 Negative ions are formed in the process of the interaction between the electron with the integrated electric dipole moment and the induced electric dipole moment due to polarization.
Leonid I. Gretchikhin
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
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
Negative ion research at the Culham Centre for Fusion Energy (CCFE)
New 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
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
New 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
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 +1 more source