TY - JOUR
T1 - Improved Unlike-Particle Collision Operator for delta-f Drift-Kinetic Particle Simulations
JO - Communications in Computational Physics
VL - 2
SP - 231
EP - 239
PY - 2011
DA - 2011/09
SN - 9
DO - http://doi.org/10.4208/cicp.090410.260410a
UR - https://global-sci.org/intro/article_detail/cicp/7498.html
KW - 
AB - <p style="text-align: justify;">Plasmas in modern tokamak experiments contain a significant fraction of
impurity ion species in addition to main deuterium background. A new unlike-particle
collision operator for δf particle simulation has been developed to study the nonlocal
effects of impurities due to finite ion orbits on neoclassical transport in toroidal
plasmas. A new algorithm for simulation of cross-collisions between different ion
species includes test-particle and conserving field-particle operators. An improved
field-particle operator is designed to exactly enforce conservation of number, momentum
and energy.</p>