Particle orbit simulations: ASCOT
ASCOT (Accelerated Simulation of Charged Particle Orbits in Tori) is a Monte Carlo orbit-following code developed in collaboration with VTT Technical Research Centre of Finland since 1991.
Neutral beam ion wall load distribution in Wendelstein 7-X, ASCOT simulation. Courtesy of S. 脛k盲slompolo (2018 Nucl. Fusion 58 082010, supplementary material)
- Guiding-centre and/or full gyro orbits of test particles are solved by integrating the equation of motion over time steps in 5-dimensional phase space
- Boozer coordinate system available in axisymmetric devices for maximum efficiency and accuracy inside the plasma
- Cartesian coordinate system used outside the last closed flux surface, simulation region can extend to the wall
- Effects of particle collisions and RF waves are modelled with Monte Carlo operators derived from the respective Fokker-Planck terms
- Fully 3D magnetic field and wall geometry for tokamak and stellarator configurations
- Analytic models for the effects of MHD modes
- Real tokamak background data, including wall structure and scrape-off layer data, can be imported (e.g. ASDEX Upgrade, JET, DIII-D, ITER)
- Optional relativistic treatment of test particles to facilitate electron studies
- Optional acceleration of particle-background and particle-wave interaction time scales to save CPU time
- Optional energy- and momentum-conserving binary collision model
- Parallelized using the MPI (Message Passing Interface) standard
- Jari Varje: (2022)
- Konsta S盲rkim盲ki: (2019)
- Paula Sir茅n: (2018)
- Simppa 脛k盲slompolo: (2016)
- Juho Miettunen: (2015)
- Otto Asunta: (2015)
- Antti Snicker: (2014)
- Tuomas Koskela: (2014)
- Eero Hirvijoki: (2014)
- Antti Salmi: (2012)
- Leena Aho-Mantila: (2011)
- Ville Hyn枚nen: (2008)
- Timo Kiviniemi: (2001)
- Seppo Sipil盲: Monte Carlo Simulation of Charged Particle Orbits in the Presence of Radiofrequency Waves in Tokamak Plasmas (1997)
- J. Kontula, S. 脛k盲slompolo, A. Ik盲heimo, S. Lazerson, T. Kurki-Suonio, D. Hartmann, N. Rust, P. McNeely, Ye.O. Kazakov, J. Ongena and the W7-X team, 鈥淧redictive simulations of NBI ion power load to the ICRH antenna in Wendelstein 7-X鈥. .
- R. Ochoukov, S. Sipil盲, R. Bilato, V. Bobkov, M. Dreval, M. Weiland, R. Dendy, H. Faugel, T. Johnson, A. Kappatou, Y. Kazakov, K.G. McClements, D. Moseev, M. Salewski, P. Schneider, ASDEX Upgrade Team and EUROfusion MST1 Team, 鈥淎nalysis of high frequency Alfv茅n eigenmodes observed in ASDEX Upgrade plasmas in the presence of RF-accelerated NBI ions鈥. .
- P. Ollus, R. Akers, B. Colling, H. El-Haroun, D. Keeling, T. Kurki-Suonio, R. Sharma, A. Snicker, J. Varje, the MAST-U team and the EUROfusion MST1 team, 鈥淪imulating the impact of charge exchange on beam ions in MAST-U鈥. .
- S. Sipil盲, J. Varje, T. Johnson, R. Bilato, J. Gald贸n-Quiroga, A. Snicker, T. Kurki-Suonio, L. Sanch铆s, D. Silvagni, J. Gonz谩lez-Mart铆n, the ASDEX Upgrade Team and the EUROfusion MST1 Team, 鈥淎SCOT orbit-following simulations of ion cyclotron heating with synthetic fast ion loss diagnostic: a first application to ASDEX Upgrade鈥. .
- J. Kontula, J.P. Koschinsky, S. 脛k盲slompolo, T. Kurki-Suonio and the W7-X team, 鈥淎SCOT simulations of 14 MeV neutron rates in W7-X: effect of magnetic configuration鈥. .
- J. Varje, T. Kurki-Suonio, A. Snicker, K. S盲rkim盲ki, P. Vincenzi, P. Agostinetti, E. Fable, P. Sonato, and F. Villone, 鈥淪ensitivity of fast ion losses to magnetic perturbations in the European DEMO鈥. .
- P. Vincenzi, J. Varje, P. Agostinetti, J.F. Artaud, T. Bolzonella, T. Kurki-Suonio, M. Mattei, P. Sonato, and M. Vallar, 鈥淓stimate of 3D power wall loads due to Neutral Beam Injection in EU DEMO ramp-up phase鈥. .
- J. Varje, V. Kiptily, P. Sir茅n, H. Weisen, and JET contributors, 鈥淪ynthetic diagnostic for the JET scintillator probe lost alpha measurements鈥. .
- A. Weckmann, T. Kurki-Suonio, K. S盲rkim盲ki, J. Romazanov, A. Kirschner, A. Hakola, M. Airila, A. Kreter, and S. Brezinsek, 鈥淧hysics affecting heavy impurity migration in tokamaks: Benchmarking test-ion code ASCOT against TEXTOR tracer experiment鈥. .
- M. Schneider, A.R. Polevoi, S.H. Kim, A. Loarte, S.D. Pinches, J-F. Artaud, E. Militello-Asp, B. Beaumont, R. Bilato, D. Boilson, D.J. Campbell, P. Dumortier, D. Farina, L. Figini, Y. Gribov, M. Henderson, R.R. Khayrutdinov, A.A. Kavin, F. K枚chl, T. Kurki-Suonio, A. Kuyanov, P. Lamalle, E. Lerche, V.E. Lukash, A. Messiaen, V. Parail, K. S盲rkim盲ki, A. Snicker, D. Van Eester, and the ITPA Topical Groups on Energetic Particle Physics and Integrated Operation & Scenarios, 鈥淢odelling one-third field operation in the ITER pre-fusion power operation phase鈥. .
- T. Kurki-Suonio, K. S盲rkim盲ki, J. Varje, S. 脛k盲slompolo, J. Kontula, P. Ollus, M. B茅coulet, L. Ch么n茅, Y. Liu, and P. Vincenzi, 鈥淐learing the road for high-fidelity fast ion simulations in full three dimensions鈥. .
- M. Salewski, M. Nocente, B. Madsen, I. Abramovic, M. Fitzgerald, G. Gorini, P.C. Hansen, W.W. Heidbrink, A.S. Jacobsen, T. Jensen, V.G. Kiptily, E.B. Klinkby, S.B. Korsholm, T. Kurki-Suonio, A.W. Larsen, F. Leipold, D. Moseev, S.K. Nielsen, S.D. Pinches, J. Rasmussen, M. Rebai, M. Schneider, A. Shevelev, S. Sipil盲, M. Stejner and M. Tardocchi, 鈥淎lpha-particle velocity-space diagnostic in ITER鈥. .
- S. 脛k盲slompolo, M. Drevlak, Y. Turkin, S. Bozhenkov, T. Jesche, J. Kontula, T. Kurki-Suonio, R.C. Wolf, and the W7-X Team, 鈥淢odelling of NBI ion wall loads in the W7-X stellarator鈥. .
- Konsta S盲rkim盲ki, Jari Varje, Marina B茅coulet, Yueqiang Liu, and Taina Kurki-Suonio, 鈥淢echanics of ELM control coil induced fast particle transport in ITER鈥. .
- P. Sir茅n, J. Varje, S. 脛k盲slompolo, O. Asunta, C. Giroud, T. Kurki-Suonio, H. Weisen, and the JET Contributors, 鈥淰ersatile fusion source integrator AFSI for fast ion and neutron studies in fusion devices鈥. .
- J. Varje, P. Sir茅n, H. Weisen, T. Kurki-Suonio, S. 脛k盲slompolo, and JET contributors, 鈥淪ynthetic NPA diagnostic for energetic particles in JET plasmas鈥. .
- P. Sir茅n, J. Varje, H. Weisen, T. Koskela, and JET contributors, 鈥淪ynthetic neutron camera and spectrometer in JET based on AFSI-ASCOT simulations鈥. .
- T. Kurki-Suonio, S. 脛k盲slompolo, K. S盲rkim盲ki, J. Varje, O. Asunta, M. Cavinato, M. Gagliardi, E. Hirvijoki, V. Parail, G. Saibene, S. Sipil盲, and A. Snicker, 鈥淓铿ect of the European design of TBMs on ITER wall loads due to fast ions in the baseline (15MA), hybrid (12.5MA), steady-state (9MA) and half-铿乪ld (7.5MA) scenarios鈥. .
- J. Varje, O. Asunta, M. Cavinato, M. Gagliardi, E. Hirvijoki, T. Koskela, T. Kurki-Suonio, Y. Liu, V. Parail, G. Saibene, S. Sipil盲, A. Snicker, K. S盲rkim盲ki, and S. 脛k盲slompolo, 鈥滶ffect of plasma response on the fast ion losses due to ELM control coils in ITER鈥. .
- S. 脛k盲slompolo, T. Kurki-Suonio, and S. Sipil盲, 鈥淪ynthetic fast ion diagnostics in tokamaks: comparing the Monte Carlo test particle code ASCOT against experiments鈥. .
- S. 脛k盲slompolo, T. Kurki-Suonio, O. Asunta, M. Cavinato, M. Gagliardi, E. Hirvijoki, G. Saibene, S. Sipil盲, A. Snicker, K. S盲rkim盲ki, J. Varje, 鈥淚TER fast ion confinement in the presence of the European test blanket module鈥. .
- O. Asunta, J. Govenius, R. Budny, M. Gorelenkova, G. Tardini, T. Kurki-Suonio, A. Salmi, S. Sipil盲, the ASDEX Upgrade Team and the JET EFDA Contributors, 鈥淢odelling neutral beams in fusion devices: beamlet-based model for fast particle simulations鈥. .
- E. Hirvijoki, O. Asunta, T. Koskela, T. Kurki-Suonio, J. Miettunen, S. Sipil盲, A. Snicker and S. 脛k盲slompolo, 鈥淎SCOT: Solving the kinetic equation of minority particle species in tokamak plasmas鈥. .
- A. Snicker, E. Hirvijoki and T. Kurki-Suonio, 鈥淧ower loads to ITER first wall structures due to fusion alphas in non-axisymmetric magnetic field including the presence of MHD modes鈥. .
- J. Miettunen, M. Groth, T. Kurki-Suonio, H. Bergs氓ker, J. Likonen, S. Marsen, C. Silva, S. 脛k盲slompolo and JET EFDA contributors, 鈥淧redictive ASCOT modelling of 10Be transport in JET with the ITER-like wall鈥. .
- A. Hakola, S. Koivuranta, J. Likonen, M. Groth, T. Kurki-Suonio, V. Lindholm, J. Miettunen, K. Krieger, M. Mayer, H.W. M眉ller, R. Neu, V. Rohde, P. Petersson and ASDEX Upgrade Team, 鈥淕lobal migration of 13C impurities in high-density L-mode plasmas in ASDEX Upgrade鈥. .
- O. Asunta, S. 脛k盲slompolo, T. Kurki-Suonio, T. Koskela, S. Sipil盲, A. Snicker, M. Garc铆a-Mu帽oz and the ASDEX Upgrade team, 鈥淪imulations of fast ion wall loads in ASDEX Upgrade in the presence of magnetic perturbations due to ELM mitigation coils鈥. .
- T. Koskela, O. Asunta, E. Hirvijoki, T. Kurki-Suonio and S. 脛k盲slompolo, 鈥淚TER ELM control coils: effect on fast ion losses and edge confinement properties鈥. .
- A. Snicker, T. Kurki-Suonio and S. Sipil盲, 鈥淥rbit-following fusion alpha wall load simulation for ITER scenario 4 including full orbit effects鈥. .
- J. Miettunen, T. Kurki-Suonio, T. Makkonen, M. Groth, A. Hakola, E. Hirvijoki, K. Krieger, J. Likonen, S. 脛k盲slompolo and the ASDEX Upgrade Team, 鈥淭he effect of non-axisymmetric wall geometry on 13C transport in ASDEX Upgrade鈥. .
- T. Kurki-Suonio, O. Asunta, T. Koskela, A. Snicker, T. Hauff, F. Jenko, E. Poli and S. Sipil盲, 鈥淔ast Ion power loads on ITER First Wall Structures in the Presence of NTMs and microturbulence鈥. .
- G. Kramer, B. Budny, R. Ellis, M. Gorelenkova, W. Heidbrink, T. Kurki-Suonio, R. Nazikian, A. Salmi, M. Schaffer, K. Shinohara, J. Snipes, D. Spong, T. Koskela and M. van Zeeland, 鈥淔ast-ion effects during test blanket module simulation experiments in DIII-D鈥. .
- K. Shinohara, T. Kurki-Suonio, D. Spong, O. Asunta, K. Tani, E. Strumberger, S. Briguglio, T. Koskela, G. Vlad, S. G眉nter, G. Kramer, S. Putvinski and K. Hamamatsu, 鈥淓ffects of complex symmetry-breakings on alpha particle power loads on first wall structures and equilibrium in ITER鈥. .
- A. Snicker, S. Sipil盲, T. Kurki-Suonio, 鈥淩ealistic Simulations of Fast-Ion Wall Distribution Including Effects Due to Finite Larmor Radius鈥. .