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Energetic particle optimization of quasi-axisymmetric stellarator equilibria
Nuclear Fusion, 2022 An important goal of stellarator optimization is to achieve good confinement of energetic particles such as, in the case of a reactor, alphas created by deuterium–tritium fusion. In this work, a fixed-boundary stellarator equilibrium was re-optimized for
Alexandra LeViness +6 more
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Contributions to Plasma Physics, Volume 60, Issue 5-6, June-July 2020., 2020 Abstract Advanced divertor configurations modify the magnetic geometry of the divertor to achieve a combination of strong magnetic flux expansion, increased connection length and higher divertor volume—to improve detachment stability, neutral/impurity confinement and heat‐channel broadening.
Thomas Body +4 more
wiley +1 more source
Symposium - International Astronomical Union, 1986 We have been monitoring the CaII H and K emission in late-type giant stars using the Mt Wilson 60-inch telescope. It is a continuation of work that Olin Wilson began almost 20 years ago. As a result not only have starspot cycles been detected (equivalent to the solar sunspot cycle), but rotation periods have now been measured.
openaire +1 more source
The University of Wisconsin-Madison Torsatron/Stellarator Laboratory program, FY 1991--1993. Annual progress report [PDF]
, 1991 This document summarizes results obtained during the first eight months of the current three year grant for research at the University of Wisconsin-Madison Torsatron/Stellarator Laboratory (TSL) and presents plans for future activity during fiscal years ...
Anderson, D. T. +3 more
core +1 more source
Overdense plasma heating in Wendelstein 7-X(W7-X) stellarator
Results in Physics, 2017 High yield nuclear fusion operating in tokamak and stellarator need to heat plasma up to the required temperatures. As the confined plasma is overdensed, the electron cyclotron resonance heating (ECRH) is inefficient due to cut-off layer.
S. Adlparvar +3 more
doaj +1 more source
Symposium - International Astronomical Union, 1997 The last two decades have seen the emergence of a new field in stellar astrophysics, the study of stellar coronae mostly in X-ray domain. With the advent of soft X-ray imagery X-ray emission was found from many thousands of solar-like stars. I will summarize the most important findings of X-ray surveys of late type stars and put the results in the ...
openaire +1 more source
Fusion Science and Technology, 2004 Stellarators are toroidal devices where the required rotational transform of the magnetic field lines is generated by external field coils and not via an induced net toroidal plasma current. This confinement scheme has the advantages that, in principle, steady-state plasma operation is possible and that it does not have to brace itself against ...
openaire +6 more sources
Systems code models for stellarator fusion power plants and application to stellarator optimisation
, 2023 Stellarators are attractive candidates for commercial fusion power plants: they inherently operate in steady-state and, unlike tokamaks, do not require a plasma current to obtain magnetic confinement, which can lead to current-driven disruptions.
Lion, J. ; https://orcid.org/ +1 more
core +1 more source
, 1981 The worldwide development of stellarator research is reviewed briefly and ...
K. Uo +11 more
core +1 more source
Initial design concepts for solid boron injection in ITER
Nuclear Materials and EnergyAs part of ITER’s consideration to change its first wall material from beryllium to tungsten, the ITER Organization has proposed studying the feasibility of real-time solid boron injection (SBI) into the plasma to coat the walls and divertor to ...
J.A. Snipes +14 more
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