Profile shape parameterization of JET electron temperature and density profiles

Profile Shape Parameterization of Jet Electron Temperature and Density Profiles

Transparency of overdense plasma with V shape density profile

In this study, we investigate the transparency of an overdense inhomogeneous plasma slab. This anomalous transmission is achieved when the conditions provided for the incident electromagnetic wave to excite coupled surface waves on the both sides of the slab. These conditions require that the homogeneous overdense plasma, or the metallic film, is placed between two dielectric layers. Here, the ...

Electron Density Profiles from the Probabilistic Analysis of the Lithium Beam at JET

Introduction The lithium beam diagnostic provides a powerful edge plasma diagnostic. It enables the determination of electron density profiles in the scrape-of-layer and pedestal region with high spatial and temporal resolution (∆t ≈ 50ms, ∆x ≈ 1cm). A fast neutral lithium beam (beam energy at JET: 55 keV) is injected into the plasma and the line radiation emitted by the collisionally excited l...

Density profiles of temperature-sensitive microgel particles.

We have performed small angle neutron scattering measurements (SANS) on dilute aqueous dispersions of polymer microgel particles as a function of temperature, T . The microgel particles are spherical crosslinked assemblies of a loose gel network of a poly-N-isopropylacrylamide (NIPAM) polymer. When the temperature is raised beyond a critical temperature, T(lc) approximately 32 degrees C , the p...

Universal gas density and temperature profile

We present an analytic approach to predict gas density and temperature profiles in dark matter haloes. We assume that the gas density profile traces the dark matter profile in outer parts of the haloes, as suggested by a number of hydrodynamic simulations. Under this assumption the hydrostatic equilibrium uniquely fixes the two free parameters in the model, the mass– temperature normalization a...