Results 21 to 30 of about 8,630,188 (308)
Tomographic diagnostic of the hydrogen beam from a negative ion source
Physical Review Special Topics. Accelerators and Beams, 2011 In this paper the tomographic diagnostic developed to characterize the 2D density distribution of a particle beam from a negative ion source is described.
M. Agostini +3 more
doaj +1 more source
Multicusp negative ion source [PDF]
Review of Scientific Instruments, 1980 The characteristics of a steady state, surface conversion, multiline-cusp negative ion source have been investigated for the production of high-energy neutral beams. With the presence of cesium, this source has been operated at a neutral pressure of 1×10−3 Torr to generate a H− ion current greater than 400 mA.
K. W. Ehlers, K. N. Leung
openaire +1 more source
Molecular dynamic simulation of Cs corrosion in Cs oven for negative ion source applications
AIP Advances, 2022 Molecular dynamic simulation is used to simulate the corrosion process of Fe or Ni in liquid Cs by Large-scale Atomic/Molecular Massively Parallel Simulator.
Yiqin Zhu +16 more
doaj +1 more source
Modelling of Plasma Discharge in a Filament Negative Ion Source
, 2023 Most of the currently operating Negative ion Neutral Beam Injectors (N-NBIs) exploit filament-powered sources for the generation of beam ions. Being widely used in fusion experiments, the arc technology has been thoroughly investigated and optimized over
Serianni G +5 more
core
Degradation mechanism of the von Willebrand factor A2 domain by nattokinase
FEBS Letters, EarlyView.Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto +3 more
wiley +1 more source
Nuclear FusionOne of the requirements of Heating and current drive Neutral Beam injectors for ITER is a beam homogeneity greater than 90%, to achieve an optimal beam transmission while keeping the heat load consistently low on the acceleration electrodes.
M. Ugoletti +5 more
doaj +1 more source
RF and Microwave Ion Sources Study at Institute of Modern Physics
Plasma, 2021 Intense ion beam production is of high importance for various versatile applications from accelerator injectors to secondary ion mass spectrometry (SIMS). For these purposes, different types of ion beams are needed and, accordingly, the optimum plasma to
Qian Y. Jin +5 more
doaj +1 more source
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
Sputtering negative ion source [PDF]
, 1990 Ion sources based on the sputtering process proved to be versatile and capable of producing a large variety of negative ion beams for Tandem accelerators.
Tadić, T. +4 more
core
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source