Sentences with phrase «of plasma confinement»

He is an experimental plasma physicist with interests in the basic physics of plasma confinement and configuration optimization.

«It could help us understand how turbulence functions as the main cause of leakage of plasma confinement.»

Not exact matches

The inertial confinement experts, such as those at NIF, are attempting to ignite a fusion reaction by firing powerful lasers at plasma contained in a pellet the size of a pea.

Direct asymmetry measurement of temperature and density spatial distributions in inertial confinement fusion plasmas from pinhole space - resolved spectra

The impact of laser plasma interactions on three - dimensional drive symmetry in inertial confinement fusion implosions

Refraction - enhanced backlit imaging of axially symmetric inertial confinement fusion plasmas

Physicists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have simulated the spontaneous transition of turbulence at the edge of a fusion plasma to the high - confinement mode (H - mode) that sustains fusion reacPlasma Physics Laboratory (PPPL) have simulated the spontaneous transition of turbulence at the edge of a fusion plasma to the high - confinement mode (H - mode) that sustains fusion reacplasma to the high - confinement mode (H - mode) that sustains fusion reactions.

«Scientists perform first basic physics simulation of spontaneous transition of the edge of fusion plasma to crucial high - confinement mode.»

In 1982, German researchers discovered that the edge of the plasma can spontaneously bifurcate into a high pedestal with a steep gradient, or transport barrier, that produces the H - mode confinement and maintains the heat of the plasma core.

In a recent paper published in EPJ H, Fritz Wagner from the Max Planck Institute for Plasma Physics in Germany, gives a historical perspective outlining how our gradual understanding of improved confinement regimes for what are referred to as toroidal fusion plasmas — confined in a donut shape using strong magnetic fields — have developed since the 1980s.

Twelve scientific divisions are investigating confinement of high - temperature hydrogen plasmas in magnetic fields, heating of plasmas, plasma diagnostics, magnetic field technology, data acquisition and processing, plasma theory, materials research, plasma - wall interaction, and systems studies.

On the other hand, in magnetic field confinement fusion plasma intended for a fusion reactor, which research is being conducted at the National Institute for Fusion Science, development of high precision electron density measurements is becoming an important research topic.

The team has built its first machine and has carried out 200 shots during commissioning and applied up to 1 kilowatt of heating, but McGuire declined to detail any measurements of plasma temperature, density, or confinement time — the key parameters for a fusion plasma — but said the plasma appeared very stable.

Most fusion research focuses on magnetic confinement, using powerful electromagnets to contain a thin plasma of hydrogen isotopes and heat it until the nuclei fuse.

The breakthrough is in magnetic confinement fusion, in which hydrogen is heated until it is a plasma 10 times hotter than the centre of the sun, and held in place by strong magnetic fields until fusion reactions occur.

One is enhancement of the negative - ion current by optimizing the magnetic configuration for plasma confinement in the ion source.

And because we can link confinement improvement to further enhancement of plasma performance, new developments in research are anticipated.

In numerous plasma experiments being conducted in countries around the world, the use of deuterium is improving the confinement of heat and particles.

Canned fusion, if it works, would need less power than NIF and shorter plasma - confinement times than ITER; as a result, a working reactor based on its principles might cost tens of millions of dollars rather than billions.

These promising new directions include higher fusion power densities, and hence smaller reactors; development of «transport barriers» in the plasma, leading to improved energy confinement and smaller sizes; self - driven plasma currents that permit steady - state operation and low recirculating power; and the development of advanced divertor concepts to provide particle control and heat removal over long reactor lifetimes.

An important overall measure of physics performance is the «triple product» of the peak ion density, the plasma energy confinement time and the peak ion temperature.

«The interesting thing about our ideas on mass separation is that it is a form of magnetic confinement, so it fits well within the Laboratory's culture,» said physicist Nat Fisch, co-author of the paper and director of the Princeton University Program in Plasma Physics.

Halo currents occur when the plasma undergoes large shifts within the vacuum chamber caused by lack of confinement during a disruption.

Results of this research can shed light on the physics behind key obstacles to plasma confinement in spherical facilities and on ways to overcome them in future machines.

Tilo Döppner is an experimental physicist who has significantly contributed to the exploration of HED plasmas and matters at extreme conditions, with relevance to fundamental science, inertial confinement fusion (ICF) and national security applications.

The campaign will also increase the heating power of the stellarator to eight megawatts to enable operation at a higher beta — the ratio of plasma pressure to the magnetic field pressure, a key factor for plasma confinement.

A main goal of tokamak research is to use magnetic plasma confinement to develop the means of operating high - pressure fusion plasmas near stability and controllability boundaries while avoiding the occurrence of transient events that can degrade performance or terminate the plasma discharge.

«We also demonstrated that the flowing liquid lithium surface was compatible with high plasma confinement and with reduced recycling of the hydrogen isotope deuterium to an extent previously achieved only with evaporated lithium coatings.

Oct. 6, 2017 - Lawrence Livermore National Laboratory's Félicie Albert was awarded the 2017 Edouard Fabre Prize for her contributions to the physics of laser - driven inertial confinement fusion (ICF) and laser - produced plasmas.