Nonlinear gyrokinetic simulation of saturated turbulence produced by fast ion precession driven drift instability in reversed shear plasmas

2021 ◽  
pp. 127632
Author(s):  
B.J. Kang ◽  
C. Angioni ◽  
T.S. Hahm
Keyword(s):  
Fast Ion ◽  
Drift Instability ◽  
Reversed Shear

Gyrokinetic studies of fast ion precession driven drift instability in reversed shear plasmas

2020 ◽  
Vol 27 (7) ◽  
pp. 072510
Author(s):  
B. J. Kang ◽  
Y. J. Kim ◽  
C. Angioni ◽  
T. S. Hahm
Keyword(s):  
Fast Ion ◽  
Drift Instability ◽  
Reversed Shear

Fast ion driven drift instability in reversed shear plasmas

2019 ◽  
Vol 26 (4) ◽  
pp. 042501 ◽  
Author(s):  
B. J. Kang ◽  
T. S. Hahm
Keyword(s):  
Fast Ion ◽  
Drift Instability ◽  
Reversed Shear

scholarly journals Central flattening of the fast-ion profile in reversed-shear DIII-D discharges

2008 ◽  
Vol 48 (8) ◽  
pp. 084001 ◽  
Author(s):  
W.W. Heidbrink ◽  
M.A. Van Zeeland ◽  
M.E. Austin ◽  
K.H. Burrell ◽  
N.N. Gorelenkov ◽  
...  
Keyword(s):  
Fast Ion ◽  
Reversed Shear

FAST ION DOUBLE COLLISION SPECTROSCOPY

1979 ◽  
Vol 40 (C1) ◽  
pp. C1-324-C1-326
Author(s):  
D. A. Church ◽  
C. S. Lee
Keyword(s):  
Double Collision ◽  
Fast Ion

FAST ION CONDUCTORS.Quasielastic neutron scattering from a single crystal of α-AgI

1980 ◽  
Vol 41 (C6) ◽  
pp. C6-17-C6-19 ◽  
Author(s):  
K. Funke ◽  
A. Höch ◽  
R. E. Lechner
Keyword(s):  
Neutron Scattering ◽  
Single Crystal ◽  
Fast Ion

Under Pressure: Mechanochemical Effects on Structure and Ion Conduction in the Sodium-Ion Solid Electrolyte Na3PS4

2020 ◽  
Author(s):  
Theodosios Famprikis ◽  
O. Ulas Kudu ◽  
James Dawson ◽  
Pieremanuele Canepa ◽  
François Fauth ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Mechanochemical Synthesis ◽  
Activation Volume ◽  
External Pressure ◽  
Sodium Ion ◽  
Variable Pressure ◽  
Ion Conductor ◽  
Ceramic Synthesis ◽  
Solid State Batteries ◽  
Fast Ion

<div> <p>Fast-ion conductors are critical to the development of solid-state batteries. The effects of mechanochemical synthesis that lead to increased ionic conductivity in an archetypical sodium-ion conductor Na<sub>3</sub>PS<sub>4</sub> are not fully understood. We present here a comprehensive analysis based on diffraction (Bragg, pair distribution function), spectroscopy (impedance, Raman, NMR, INS) and <i>ab-initio</i> simulations aimed at elucidating the synthesis-property relationships in Na<sub>3</sub>PS<sub>4</sub>. We consolidate previously reported interpretations about the local structure of ball-milled samples, underlining the sodium disorder and showing that a local tetragonal framework more accurately describes the structure than the originally proposed cubic one. Through variable-pressure impedance spectroscopy measurements, we report for the first time the activation volume for Na<sup>+</sup> migration in Na<sub>3</sub>PS<sub>4</sub>, which is ~30% higher for the ball-milled samples. Moreover, we show that the effect of ball-milling on increasing the ionic conductivity of Na<sub>3</sub>PS<sub>4</sub> to ~10<sup>-4</sup> S/cm can be reproduced by applying external pressure on a sample from conventional high temperature ceramic synthesis. We conclude that the key effects of mechanochemical synthesis on the properties of solid electrolytes can be analyzed and understood in terms of pressure, strain and activation volume.</p> </div>

scholarly journals Sticky islands in stochastic webs and anomalous chaotic cross-field particle transport by E×B electron drift instability

2021 ◽  
Vol 145 ◽  
pp. 110810
Author(s):  
D. Mandal ◽  
Y. Elskens ◽  
X. Leoncini ◽  
N. Lemoine ◽  
F. Doveil
Keyword(s):  
Particle Transport ◽  
Electron Drift ◽  
Drift Instability

Growth of the lower hybrid drift instability in the plume of a magnetically shielded Hall thruster

2021 ◽  
Vol 129 (19) ◽  
pp. 193301
Author(s):  
Ioannis G. Mikellides ◽  
Alejandro Lopez Ortega
Keyword(s):  
Hall Thruster ◽  
Lower Hybrid ◽  
Drift Instability

scholarly journals A new tangential gamma-ray spectrometer for fast ion measurements in deuterium and deuterium–tritium plasmas of the Joint European Torus

2021 ◽  
Vol 92 (4) ◽  
pp. 043537
Author(s):  
M. Nocente ◽  
T. Craciunescu ◽  
G. Gorini ◽  
V. Kiptily ◽  
M. Tardocchi ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometer ◽  
Fast Ion
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