Detection of short-scale turbulence in the next generation of tokamak burning plasma experiments

2006 ◽  
Vol 48 (12) ◽  
pp. 1749-1763 ◽  
Author(s):  
E Mazzucato
Keyword(s):  
Next Generation ◽  
Short Scale ◽  
Burning Plasma ◽  
Scale Turbulence

A laser collective scattering system for measuring short-scale turbulence on HL-2A tokamak

2020 ◽  
Vol 15 (12) ◽  
pp. P12016-P12016
Author(s):  
K. Yao ◽  
Y. Xu ◽  
H. Wang ◽  
Y. Li ◽  
M. Jiang ◽  
...  
Keyword(s):  
Scattering System ◽  
Short Scale ◽  
Collective Scattering ◽  
Scale Turbulence

scholarly journals Scenario adaptive disruption prediction study for next generation burning-plasma tokamaks

2021 ◽  
Vol 61 (11) ◽  
pp. 114005
Author(s):  
J. Zhu ◽  
C. Rea ◽  
R.S. Granetz ◽  
E.S. Marmar ◽  
K.J. Montes ◽  
...  
Keyword(s):  
Next Generation ◽  
Burning Plasma

Study of short-scale turbulence in the presence of LHCD in HT-7

2012 ◽  
Vol 376 (4) ◽  
pp. 488-492
Author(s):  
W.Y. Zhang ◽  
Y.D. Li ◽  
X. Gao ◽  
P.J. Sun ◽  
S.Y. Lin ◽  
...  
Keyword(s):  
Short Scale ◽  
Scale Turbulence

ABOUT FERMI ACCELERATION AT RELATIVISTIC SHOCKS AND THE SCATTERING ISSUE

2008 ◽  
Vol 17 (10) ◽  
pp. 1751-1760
Author(s):  
GUY PELLETIER ◽  
MARTIN LEMOINE ◽  
ALEXANDRE MARCOWITH
Keyword(s):  
Cosmic Rays ◽  
Fermi Acceleration ◽  
Turbulence Spectrum ◽  
Magnetic Turbulence ◽  
Short Scale ◽  
Return Probability ◽  
Relativistic Shocks ◽  
Turbulent Spectrum ◽  
Scale Turbulence ◽  
Significant Return

Difficulties arise in the process of Fermi acceleration at relativistic shocks because they are generically in the superluminal regime and they strongly compress turbulence downstream. Under reasonable conditions usually considered for the turbulent spectrum upstream, cosmic rays do not undergo the scattering that would allow them to make several Fermi cycles. An intense short scale turbulence must be excited in order that the Fermi process can be operative. In this paper, we show the requirement for the turbulence spectrum and give a solution to this issue in the form of the generation of intense compressive waves at short scale upstream. We indicate how the magnetic turbulence compression downstream should not be an obstacle for getting a significant return probability. Thus we conclude that, despite the necessity of some further analysis, the Fermi process at relativistic shock is still promising.

1477: Durability of Next Generation Flexible Ureteroscopes: Randomized Prospective Study

2004 ◽  
Vol 171 (4S) ◽  
pp. 389-389
Author(s):  
Manoj Monga ◽  
Ramakrishna Venkatesh ◽  
Sara Best ◽  
Caroline D. Ames ◽  
Courtney Lee ◽  
...  
Keyword(s):  
Prospective Study ◽  
Next Generation ◽  
Flexible Ureteroscopes
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