Nuclear Materials and Energy (Mar 2021)
Preliminary analysis of alternative divertors for DEMO
- F. Militello,
- L. Aho-Mantila,
- R. Ambrosino,
- T. Body,
- H. Bufferand,
- G. Calabro,
- G. Ciraolo,
- D. Coster,
- G. Di Gironimo,
- P. Fanelli,
- N. Fedorczak,
- A. Herrmann,
- P. Innocente,
- R. Kembleton,
- J. Lilburne,
- T. Lunt,
- D. Marzullo,
- S. Merriman,
- D. Moulton,
- A.H. Nielsen,
- J. Omotani,
- G. Ramogida,
- H. Reimerdes,
- M. Reinhart,
- P. Ricci,
- F. Riva,
- A. Stegmeir,
- F. Subba,
- W. Suttrop,
- P. Tamain,
- M. Teschke,
- A. Thrysoe,
- W. Treutterer,
- S. Varoutis,
- M. Wensing,
- A. Wilde,
- M. Wischmeier,
- L.Y. Xiang
Affiliations
- F. Militello
- UKAEA, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK; Corresponding author.
- L. Aho-Mantila
- VTT Technical Research Centre of Finland, FI-02044 VTT, Finland
- R. Ambrosino
- C.R.E.A.T.E. Consortium, ENEA, Napoli, Italy
- T. Body
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- H. Bufferand
- CEA, IRFM, 13108 St. Paul-Lez-Durance, France
- G. Calabro
- DEIm Department, University of Tuscia, Largo dell’Universitá, 01100 Viterbo, Italy
- G. Ciraolo
- CEA, IRFM, 13108 St. Paul-Lez-Durance, France
- D. Coster
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- G. Di Gironimo
- C.R.E.A.T.E. Consortium, ENEA, Napoli, Italy
- P. Fanelli
- DEIm Department, University of Tuscia, Largo dell’Universitá, 01100 Viterbo, Italy
- N. Fedorczak
- CEA, IRFM, 13108 St. Paul-Lez-Durance, France
- A. Herrmann
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- P. Innocente
- Consorzio RFX, Euratom-ENEA Association, C.so Stati Uniti 4, I-35126, Padova, Italy
- R. Kembleton
- Eurofusion PMU, Boltzmannstrasse 2, D-85748 Garching, Germany
- J. Lilburne
- UKAEA, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK
- T. Lunt
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- D. Marzullo
- C.R.E.A.T.E. Consortium, ENEA, Napoli, Italy
- S. Merriman
- UKAEA, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK
- D. Moulton
- UKAEA, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK
- A.H. Nielsen
- PPFE, Department of Physics, DTU, DK-2800 Kgs. Lyngby, Denmark
- J. Omotani
- UKAEA, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK
- G. Ramogida
- ENEA,Via Enrico Fermi 45, I00044, Frascati (RM), Italy
- H. Reimerdes
- Swiss Plasma Center (SPC-EPFL), CH-1015 Lausanne, Switzerland
- M. Reinhart
- Eurofusion PMU, Boltzmannstrasse 2, D-85748 Garching, Germany
- P. Ricci
- Swiss Plasma Center (SPC-EPFL), CH-1015 Lausanne, Switzerland
- F. Riva
- UKAEA, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK
- A. Stegmeir
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- F. Subba
- NEMO Group, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy
- W. Suttrop
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- P. Tamain
- CEA, IRFM, 13108 St. Paul-Lez-Durance, France
- M. Teschke
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- A. Thrysoe
- PPFE, Department of Physics, DTU, DK-2800 Kgs. Lyngby, Denmark
- W. Treutterer
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- S. Varoutis
- Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- M. Wensing
- Swiss Plasma Center (SPC-EPFL), CH-1015 Lausanne, Switzerland
- A. Wilde
- UKAEA, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK
- M. Wischmeier
- Max-Planck Institut für Plasmaphysik, D-85748 Garching, Germany
- L.Y. Xiang
- UKAEA, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK
- Journal volume & issue
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Vol. 26
p. 100908
Abstract
A physics and engineering analysis of alternative divertor configurations is carried out by examining benefits and problems by comparing the baseline single null solution with a Snowflake, an X- and a Super-X divertor. It is observed that alternative configurations can provide margin and resilience against large power fluctuations, but their engineering has intrinsic difficulties, especially in the balance between structural solidity and accessibility of the components and when the specific poloidal field coil positioning poses further constraints. A hybrid between the X- and Super-X divertor is proposed as a possible solution to the integration challenge.
