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

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

Integrated impurity diagnostic package for magnetic fusion experiments

2003 ◽  
Vol 74 (3) ◽  
pp. 1982-1987 ◽  
Author(s):  
D. Stutman ◽  
M. Finkenthal ◽  
H. W. Moos ◽  
K. B. Fournier ◽  
R. Kaita ◽  
...  
Keyword(s):  
Magnetic Fusion ◽  
Fusion Experiments

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 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.

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