Effect of Turbulent Fluctuations on Neutral Particle Penetration and Charge Exchange Sputtering

2014 ◽  
Vol 54 (4-6) ◽  
pp. 409-414 ◽  
Author(s):  
A. Mekkaoui ◽  
V. Kotov ◽  
D. Reiter ◽  
P. Boerner
Keyword(s):  
Charge Exchange ◽  
Neutral Particle ◽  
Turbulent Fluctuations ◽  
Particle Penetration

scholarly journals Modeling of the Hα Emission from ADITYA Tokamak Plasmas

Atoms ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 95
Author(s):  
Ritu Dey ◽  
Malay B. Chowdhuri ◽  
Joydeep Ghosh ◽  
Ranjana Manchanda ◽  
Nandini Yadava ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Molecular Hydrogen ◽  
Neutral Particle ◽  
Exchange Process ◽  
Neutral Hydrogen ◽  
Spatial Profile ◽  
Charge Exchange Process ◽  
Neutral Particle Transport ◽  
Particle Penetration ◽  
Hα Emission

The spatial profile of Hα spectrum is regularly measured using a high-resolution multi-track spectrometer in ADITYA tokamak to study the neutral particle behavior. The Monte Carlo neutral particle transport code DEGAS2 is used to model the experimental Hα spectral emissions. Through the modeling of the spectral line profile of Hα, it is found that the neutral hydrogen, which is produced from molecular hydrogen and molecular hydrogen ion dissociation processes contributes 56% to the total Hα emission, and the atoms which are produced from charge-exchange process have 30% contribution. Furthermore, the experimentally measured spatial profile of chord integrated brightness was modeled for the two plasma discharges having relatively high and low density to understand the neutral particle penetration. The presence of neutrals inside the core region of the ADITYA tokamak is mainly due to the charge-exchange process. Furthermore, it is observed that neutral particle penetration is lower in higher density discharge.

scholarly journals Charge exchange neutral particle analysis with natural diamond detectors on LHD heliotron

2001 ◽  
Vol 72 (1) ◽  
pp. 611-614 ◽  
Author(s):  
M. Isobe ◽  
M. Sasao ◽  
S. Iiduka ◽  
A. V. Krasilnikov ◽  
S. Murakami ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Neutral Particle ◽  
Natural Diamond ◽  
Particle Analysis

scholarly journals Pellet charge exchange helium measurement using neutral particle analyzer in large helical device

2008 ◽  
Vol 79 (10) ◽  
pp. 10E518 ◽  
Author(s):  
T. Ozaki ◽  
P. Goncharov ◽  
E. Veshchev ◽  
N. Tamura ◽  
S. Sudo ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Neutral Particle ◽  
Neutral Particle Analyzer

scholarly journals Active Neutral Particle Diagnostics on LHD by Locally Enhanced Charge Exchange on an Impurity Pellet Ablation Cloud

2006 ◽  
Vol 50 (2) ◽  
pp. 222-228 ◽  
Author(s):  
P. R. Goncharov ◽  
T. Ozaki ◽  
S. Sudo ◽  
N. Tamura ◽  
D. V. Kalinina ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Neutral Particle ◽  
Particle Diagnostics

Analyses of neutral particle penetration and particle confinement in JT-60U

1995 ◽  
Vol 220-222 ◽  
pp. 429-432 ◽  
Author(s):  
H. Takenaga ◽  
N. Asakura ◽  
K. Shimizu ◽  
S. Tsuji ◽  
M. Shimada ◽  
...  
Keyword(s):  
Neutral Particle ◽  
Particle Penetration ◽  
Particle Confinement

scholarly journals Contemporary Instrumentation and Application of Charge Exchange Neutral Particle Diagnostics in Magnetic Fusion Experiments

2007 ◽  
Author(s):  
S. S. Medley ◽  
A. J.H. Donne ◽  
R. Kaita ◽  
A. I. Kislyakov ◽  
M. P. Petrov ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Neutral Particle ◽  
Magnetic Fusion ◽  
Particle Diagnostics ◽  
Fusion Experiments

Effects of turbulent fluctuations with prescribed statistics on passive neutral particle transport in plasmas

2011 ◽  
Vol 53 (6) ◽  
pp. 065001 ◽  
Author(s):  
Y Marandet ◽  
A Mekkaoui ◽  
D Reiter ◽  
P Boerner ◽  
P Genesio ◽  
...  
Keyword(s):  
Particle Transport ◽  
Neutral Particle ◽  
Turbulent Fluctuations ◽  
Neutral Particle Transport
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