scholarly journals Burn Control of Magnetically Confined Fusion Plasma. 3. Burn Control in Helical Fusion Reactors.

1999 ◽  
Vol 75 (12) ◽  
pp. 1370-1374
Author(s):  
Kozo YAMAZAKI
Keyword(s):  
Fusion Reactors ◽  
Fusion Plasma ◽  
Magnetically Confined

scholarly journals On the accuracy of the binary-collision algorithm in particle-in-cell simulations of magnetically confined fusion plasmas

2021 ◽  
Vol 87 (2) ◽  
Author(s):  
Timo P. Kiviniemi ◽  
Eero Hirvijoki ◽  
Antti J. Virtanen
Keyword(s):  
Finite Difference ◽  
Electric Fields ◽  
Finite Size ◽  
Binary Collision ◽  
Conserved Quantities ◽  
Fusion Plasmas ◽  
Fusion Plasma ◽  
Particle In Cell ◽  
Magnetically Confined ◽  
Scale Length

Ideally, binary-collision algorithms conserve kinetic momentum and energy. In practice, the finite size of collision cells and the finite difference in the particle locations affect the conservation properties. In the present work, we investigate numerically how the accuracy of these algorithms is affected when the size of collision cells is large compared with gradient scale length of the background plasma, a parameter essential in full- $f$ fusion plasma simulations. Additionally, we discuss implications for the conserved quantities in drift-kinetic formulations when fluctuating magnetic and electric fields are present: we suggest how the accuracy of the algorithms could potentially be improved with minor modifications.

Benchmarking atomic physics models for magnetically confined fusion plasma physics experiments

1999 ◽  
Vol 70 (1) ◽  
pp. 375-378 ◽  
Author(s):  
M. J. May ◽  
M. Finkenthal ◽  
V. Soukhanovskii ◽  
D. Stutman ◽  
H. W. Moos ◽  
...  
Keyword(s):  
Plasma Physics ◽  
Atomic Physics ◽  
Fusion Plasma ◽  
Magnetically Confined ◽  
Physics Experiments
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