Nonlinear interaction between kinetic instabilities in partially magnetized plasmas the presence of multiply charged ion streams is investigated using simulations. It was observed by Hara and Tsikata [Phys. Rev. E 102, 023202 (2020)] that axial ion–ion two-stream instability due to singly doubly streams, coupled with azimuthal electron cyclotron drift (ECDI), enhances cross-field transport. In ...

The molecular composition of phosphatidylcholines (PCs) in total lipid extracts was characterized by a combination of multiple precursor ion scanning on a hybrid quadrupole time-of-flight mass spectrometer and MS3 fragmentation on an ion trap mass spectrometer. Precursor ion spectra for 50 acyl anion fragments of fatty acids (fatty acid scanning) acquired in parallel increased the specificity a...

Graphite surfaces were bombarded with Ne, Ar and Xe ions at 450 eV–1 keV to induce the carbon nanofiber (CNF) growth at room temperature, and the dependence of size and numerical density of ion-induced CNFs on the ion species and ion energy was investigated in detail. The ion-sputtered surfaces were covered with densely distributed conical protrusions and aligned CNFs grew on the tips, except f...

Electrokinetic transport in fluidic channels facilitates control and separation of ionic species. In nanometer-scale electrokinetic systems, the electric double layer thickness is comparable to characteristic channel dimensions, and this results in nonuniform velocity profiles and strong electric fields transverse to the flow. In such channels, streamwise and transverse electromigration fluxes ...

Recent work at SNL has demonstrated unique capabilities to experimentally measure a variety of ion and neutral particle parameters inside surface features being etched, including ion energy, angular distributions, ion and neutral species measurements. This report details the construction of one recent laboratory tool designed to measure ion beam uniformity over the wafer surface in a reactive i...

An outlook of the experiments needs for Heavy Ion physics for the next ten years is given, including a summary of required beam types and configurations (e.g. p-Pb and collision energies other than the nominal 13 TeV). We discuss which, if any, other ion species than Pb are being considered. The experiment expectations in terms of integrated luminosities are discussed, along with the impact use...

Badgley, C. and Gingerich, P. D., 1988. Sampling and faunal turnover in Early Eocene mammals. Palaeogeogr., Palaeoclimatol., Palaeoecol., 63: 141-157. Faunal turnovers in the fossil record are episodes of synchronous appearance and disappearance of species from a community, often resulting in net change in species richness. We studied the biostratigraphic record of faunal turnover involving ear...

The dusty plasma system (containing nonthermally distributed inertialess electron species, warm inertial ion and positively charged stationary dust species) is considered. basic features of subsonic supersonic modified-ion-acoustic solitary shock waves formed in such a have been investigated by the reductive perturbation method. It has shown that species play new role favor formation waves. On ...

electron bombardment is applicable to any atomic species, it can reduce the lifetime of the trapped ions by contaminating the vacuum, and the accumulation of charge on insulators can result in additional micromotion or even destabilize the trap. Although photoionization can avoid the issues related to electron bombardment, there can be significant overhead associated with the additional lasers,...