SPOT: a New Monte Carlo Solver for Fast Alpha Particles

Mireille Schneider (1) , Lars-Göran Eriksson (1) , Vincent Basiuk (1) , Frédéric Imbeaux (1)

1 CEA/DSM/DRFC - Association EURATOM-CEA

The predictive transport code CRONOS has been augmented by an orbit following Monte Carlo code, SPOT (Simulation of Particle Orbits in a Tokamak). The SPOT code simulates the dynamics of non-thermal particles, and takes into account effects of finite orbit width and collisional transport of fast ions. Recent developments indicate that it might be difficult to avoid, at least transiently, current holes in a reactor. They occur already on existing tokamaks during advanced tokamak scenarios. For this reason the SPOT code has been used to study the alpha particle behaviour in the presence of current holes for both JET and ITER relevant parameters.

Mots clés: alpha particles; monte carlo; orbit; cronos; spot

Domaines: Physique des plasmas [physics.plasm-ph]

Mireille Schneider, Lars-Göran Eriksson, Vincent Basiuk, Frédéric Imbeaux. SPOT: a New Monte Carlo Solver for Fast Alpha Particles. 2004. ⟨hal-00002037⟩