Results 81 to 90 of about 4,784,253 (254)
Advanced Functional Materials, EarlyView.A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma +10 more
wiley +1 more source
Nuclear FusionA spatially resolved and direction-resolved framework for computing fusion reaction rates and synthetic neutron energy spectra is implemented in the Particle Orbit Tracing Code (PTC).
Xiangfeng Wu +12 more
doaj +1 more source
Fundamental photoemission brightness limit from disorder induced heating
New Journal of Physics, 2013 We determine the limit of the lowest achievable photoemitted electron temperature, and therefore the maximum achievable electron brightness, from unstructured photoemitting materials producing dense relativistic or nonrelativistic photoelectron beams ...
J M Maxson +4 more
doaj +1 more source
Performance analysis of in-line direct converters for neutral beam sources [PDF]
, 1975 The energetics of neutral beam formation from positive ion sources with beam direct conversion is presented. Two specific converters, the immersed grid and space charge controlled configurations, are described and their performance analyzed.
Moir, R.W., Barr, W.L., Bender, D.J.
core
Advanced Functional Materials, EarlyView.A spatial location of atomic layer deposition (ALD)‐derived ZrO2 coatings is demonstrated to be a critical design parameter for stabilizing graphite cathodes in DIBs. Direct particle‐level ALD (PALD) screening of representative metal oxides identified ZrO2 as the coating that provides the most favorable balance of high‐rate capability and interfacial ...
Jieun Kang +7 more
wiley +1 more source
Measurement of the neutral current reaction at high Q2 in the H1 experiment at HERA II [PDF]
, 2012 This thesis presents inclusive ep double and single differential cross section measurements for neutral current deep inelastic scattering of longitudinally polarized leptons on protons as a function of the negative four-momentum transfer squared Q2 and ...
Shushkevich, Stanislav
core +1 more source
Nuclear FusionThe neutral beam heating systems for ITER will be based on radio-frequency driven sources, accelerating a negative ion beam current of tens of amperes for up to one hour.
E. Sartori +75 more
doaj +1 more source
Fault detection and protection system for neutral beam generators on the Neutral Beam Engineering Test Facility (NBETF) [PDF]
, 1983 Neutral beam sources, their power supplies and instrumentation can be damaged from high voltage sparkdown or from overheating due to excessive currents.
deVries, G.J. +2 more
core
Advanced Functional Materials, EarlyView.A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar +9 more
wiley +1 more source
Simulated Neutrino Signals of Low and Intermediate Energy Neutrinos on Cd Detectors
Frontiers in Physics, 2019 Neutrino-nucleus reactions cross sections, obtained for neutrino energies in the range εν ≤ 100–120 MeV (low- and intermediate-energy range), which refer to promising neutrino detection targets of current terrestrial neutrino experiments, are presented ...
J. Sinatkas +3 more
doaj +1 more source