224 citations · 350 across the 9 of their papers we have counts for
9 papers
Serpent neutronics model of Wendelstein 7-X for 14.1 MeV neutrons
Simppa Äkäslompolo, Jan Paul Koschinsky, Joona Kontula +8
In this work, a Serpent 2 neutronics model of the Wendelstein 7-X (W7-X) stellarator is prepared, and an response function for the Scintillating-Fibre neutron detector (SciFi) is c…
ASCOT simulations of 14 MeV neutron rates in W7-X: effect of magnetic configuration
Joona Kontula, Jan Paul Koschinsky, Simppa Äkäslompolo +2
Neutron production rates in fusion devices are determined not only by the kinetic profiles but also the fast ion slowing-down distributions. In this work, we investigate the effect…
High-performance orbit-following code ASCOT5 for Monte Carlo simulations in fusion plasmas
Jari Varje, Konsta Särkimäki, Joona Kontula +5
We present a novel implementation of a Monte Carlo particle-following code for solving the distribution function of minority species in fusion plasmas, called ASCOT5, and verify it…
Validating the ASCOT modelling of NBI fast ions in Wendelstein 7-X stellarator
S. Äkäslompolo, P. Drewelow, Y. Gao +37
The first fast ion experiments in Wendelstein 7-X were performed in 2018. They are one of the first steps in demonstrating the optimised fast ion confinement of the stellarator. Th…
Monte Carlo method and High Performance Computing for solving Fokker-Planck equation of minority plasma particles
Eero Hirvijoki, Taina Kurki-Suonio, Simppa Äkäslompolo +3
This paper explains how to obtain the distribution function of minority ions in tokamak plasmas using the Monte Carlo method. Since the emphasis is on energetic ions, the guiding-c…
Simulations of fast ion wall loads in ASDEX Upgrade in the presence of magnetic perturbations due to ELM mitigation coils
Otto Asunta, Simppa Äkäslompolo, Taina Kurki-Suonio +4
The effect of ASDEX Upgrade (AUG) ELM mitigation coils on fast ion wall loads was studied with the fast particle following Monte Carlo code ASCOT. Neutral beam injected (NBI) parti…