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PROCESS Publications

Physics and Engineering Model Papers

The physics and engineering papers outline the models used in PROCESS, both published in Fusion Engineering and Design.

Below is a list of publications using or citing PROCESS by year:

2024

Flat-top plasma operational space of the STEP power plant
E. Tholerus, F.J. Casson, S.P. Marsden, T. Wilson, D. Brunetti, P. Fox, S.J. Freethy, T.C. Hender, S.S. Henderson, A. Hudoba, K.K. Kirov, F. Koechl, H. Meyer, S.I. Muldrew, C. Olde, B.S. Patel, C.M. Roach, S. Saarelma, G. Xia
Nuclear Fusion (Submitted) arXiv:2403.09460

Using Bayesian Networks as Metamodels for Predicting Uncertain Fusion Economics in Spherical Tokamaks
T. Griffiths, Z. Xuereb Conti, J. Hidalgo-Salaverri, M. Bluck
IEEE Transactions on Plasma Science (Early Access)

Extrapolating Costs to Commercial Fusion Power Plants
J. Foster, H. Lux, S. Knight, D. Wolff, S.I. Muldrew
IEEE Transactions on Plasma Science (Early Access)

Conceptual design workflow for the STEP Prototype Powerplant
S.I. Muldrew, C. Harrington, J. Keep, C. Waldon, C. Ashe, R. Chapman, C. Griesel, A.J. Pearce, F. Casson, S.P. Marsden, E. Tholerus
Fusion Engineering and Design 201 (2024) 114238

2023

Architectural development of an ST fusion device
T.G. Brown, J.E. Menard
Fusion Engineering and Design 192 (2023) 113583

Virtual prototyping of liquid metal blanket performance in fusion pilot plant
A. Khodak, A. Brooks, T. Brown, J. Klabacha, B. Linn, T. Looby, J. Menard, C. Swanson, P. Titus, H. Zhang
Fusion Engineering and Design 191 (2023) 113692

Technological features of a commercial fusion power plant, and the gap from DEMO
R. Kembleton
Fusion Engineering and Design 190 (2023) 113544

2022

Toward DEMO power plant concept selection under epistemic uncertainty
E. Miralles-Dolz, A. Pearce, J. Morris, E. Patelli
IEEE Transactions on Plasma Science 50(11) (2022) 4440-4445

Boosting the efficiency of future fusion power plants combining energy and heat production
P. Cano-Megias, J. Hidalgo-Salaverri, R. Chacartegui, J. Ayllon-Guerola, J.A. Becerra-Villanueva, E. Viezzer
IEEE Transactions on Plasma Science 50(11) (2022) 4430-4439

Sensitivity analysis of capital cost of European DEMO design
A.J. Pearce, S. Kahn, J. Morris, S.I. Muldrew
IEEE Transactions on Plasma Science 50(11) (2022) 4413-4418

Commercialization of fusion power plants
H. Lux, D. Wolff, J. Foster
IEEE Transactions on Plasma Science 50(11) (2022) 4401-4405

Validation and results of an approximate model for the stress of a tokamak toroidal field coil at the inboard midplane
C.P.S. Swanson, S. Kahn, C. Rana, P.H. Titus, A.W. Brooks, W. Guttenfelder, Y. Zhai, T.G. Brown, J.E. Menard
arXiv:2206.14699 (2022)

Recent progress in Chinese fusion research based on superconducting tokamak configuration
J. Zheng, J. Qin, K. Lu, M. Xu, X. Duan, G. Xu, J. Hu, X. Gong, Q. Zang, Z. Liu, L. Wang, R. Ding, J. Chen, P. Li, L. Xue, L. Cai, Y. Song
The Innovation 3(4) (2022) 100269

Training and upgrading tokamak power plants with remountable superconducting magnets
S.B.L. Chislett-McDonald, E. Surrey, J. Naish, A. Turner, D.P. Hampshire
arXiv:2205.04441 (2022)

Designing a fusion power plant with superconducting training magnets
S.B.L. Chislett-McDonald
Durham University PhD Thesis (2022)

EU-DEMO design space exploration and design drivers
R. Kembleton, J. Morris, M. Siccinio, F. Maviglia, the PROCESS team
Fusion Engineering and Design 178 (2022) 113080

Development of the plasma scenario for EU-DEMO: Status and plans
M. Siccinio, J.P. Graves, R. Kembleton, H. Lux, F. Maviglia, A.W. Morris, J. Morris, H. Zohm
Fusion Engineering and Design 176 (2022) 113047

The DEMO magnet system – Status and future challenges
V. Corato, C. Vorpahl, K. Sedlak, V.A. Anvar, J. Bennet, M.E. Biancolini, F. Bonne, R. Bonifetto, D.P. Boso, A. Brighenti, P. Bruzzone, G. Celentano, A. della Corte, G. De Marzi, V. D'Auria, F. Demattè, A. Dembkowska, O. Dicuonzo, C. Fiamozzi Zignani, W.H. Fietz, C. Frittitta, L. Giannini, F. Giorgetti, R. Guarino, R. Heller, C. Hoa, M. Huguet, G. Jiolat, M. Kumar, B. Lacroix, M. Lewandowska, N. Misiara, L. Morici, L. Muzzi, D.S. Nickel, S. Nicollet, A. Nijhuis, F. Nunio, C. Portafaix, X. Sarasola, L. Savoldi, I. Tiseanu, G. Tomassetti, A. Torre, S. Turtù, D. Uglietti, R. Vallcorba, K.-P. Weiss, R. Wesche, M.J. Wolf, K. Yagotintsev, L. Zani, R. Zanino, A. Zappatore
Fusion Engineering and Design 174 (2022) 112971

2021

Fusion energy: A global effort – A UK opportunity
M. Rooney, T. Roulstone, G. Locatelli, B. Lindley
Institution of Mechanical Engineers/Assystem (2021)

A general stellarator version of the systems code PROCESS
J. Lion, F. Warmer, H. Wang, C.D. Beidler, S.I. Muldrew, R.C. Wolf
Nuclear Fusion 61 (2021) 126021

Analysis of supercritical carbon dioxide Brayton cycles for a helium-cooled pebble bed blanket DEMO-like fusion power plant
J. Hidalgo-Salaverri, P. Cano-Megias, R. Chacartegui, J. Ayllon-Guerola
Fusion Engineering and Design 173 (2021) 112860

Preparing systems codes for power plant conceptual design
J. Morris, M. Coleman, S. Kahn, S.I. Muldrew, A.J. Pearce, D. Short, J.E. Cook, S. Desai, L. Humphrey, M. Kovari, J. Maddock, D. Vaccaro
Nuclear Fusion 61 (2021) 116020

Feasibility of D-D start-up under realistic technological assumptions for EU-DEMO
M. Siccinio, P. Chiovaro, F. Cismondi, M. Coleman, C. Day, E. Fable, G. Federici, T. Härtl, J. Schwenzer, G.A. Spagnuolo
Fusion Engineering and Design 171 (2021) 112554

Design uncertainty for a HELIAS 5-B stellarator fusion power plant
S.I. Muldrew, F. Warmer, J. Lion, H. Lux
Fusion Engineering and Design 170 (2021) 112708

2020

DEMO physics challenges beyond ITER
M. Siccinio, W. Biel, M. Cavedon, E. Fable, G. Federici, F. Janky, H. Lux, F. Maviglia, J. Morris, F. Palermo, O. Sauter, F. Subba, H. Zohm
Fusion Engineering and Design 156 (2020) 111603

Summary of the 3rd IAEA technical meeting on divertor concepts
M. Barbarino, A.W. Leonard, N. Asakura, M. Jakubowski, M. Kobayashi, B. Lipschultz, R. Neu, L. Wang, M. Wischmeier
Nuclear Fusion 60 (2020) 097001

Assessment of alternative divertor configurations as an exhaust solution for DEMO
H. Reimerdes, R. Ambrosino, P. Innocente, A. Castaldo, P. Chmielewski, G. Di Gironimo, S. Merriman, V. Pericoli-Ridolfini, L. Aho-Mantilla, R. Albanese, H. Bufferand, G. Calabro, G. Ciraolo, D. Coster, N. Fedorczak, S. Ha, R. Kembleton, K. Lackner, V.P. Loschiavo, T. Lunt, D. Marzullo, R. Maurizio, F. Militello, G. Ramogida, F. Subba, S. Varoutis, R. Zagórski, H. Zohm
Nuclear Fusion 60 (2020) 066030

Comparison of the PROCESS systems code with the SONIC divertor code
J. Morris, N. Asakura, Y. Homma, K. Hoshino, M. Kovari
IEEE Transactions on Plasma Science 48 (2020) 1799-1803

"PROCESS": Systems studies of spherical tokamaks
S.I. Muldrew, H. Lux, G. Cunningham, T.C. Hender, S. Kahn, P.J. Knight, B. Patel, G.M. Voss, H.R. Wilson
Fusion Engineering and Design 154 (2020) 111530

2019

Status of divertor/scrape-off layer modelling in PROCESS
S.I. Muldrew, M. Kovari, J. Morris
Third IAEA Technical Meeting on Divertor Concepts, Vienna, Austria (2019)

Figure of merit for divertor protection in the preliminary design of the EU-DEMO reactor
M. Siccinio, G. Federici, R. Kembleton, H. Lux, F. Maviglia, J. Morris
Nuclear Fusion 59 (2019) 106026

Overview of the DEMO staged design approach in Europe
G. Federici, C. Bachmann, L. Barucca, C. Baylard, W. Biel, L.V. Boccaccini, C. Bustreo, S. Ciattaglia, F. Cismondi, V. Corato, C. Day, E. Diegele, T. Franke, E. Gaio, C. Gliss, T. Haertl, A. Ibarra, J. Holden, G. Keech, R. Kembleton, A. Loving, F. Maviglia, J. Morris, B. Meszaros, I. Moscato, G. Pintsuk, M. Siccinio, N. Taylor, M.Q. Tran, C. Vorpahl, H. Walden and J.H. You
Nuclear Fusion 59 (2019) 066013

Implications of uncertainties on European DEMO design
H. Lux, M. Siccinio, W. Biel, G. Federici, R. Kembleton, A.W. Morris, E. Patelli, H. Zohm
Nuclear Fusion 59 (2019) 066012

Validation and sensitivity of CFETR design using EU systems codes
J. Morris, V. Chan, S. Mao, M.Y. Ye
Fusion Engineering and Design 146 (2019) 574

Uncertainty analysis of an SST-2 fusion reactor design
S.I. Muldrew, H. Lux, V. Menon, R. Srinivasan
Fusion Engineering and Design 146 (2019) 353

Systems studies of double null divertor models
A.J. Pearce, R. Kembleton, M. Kovari, H. Lux, F. Maviglia, J. Morris, M. Siccinio
46th EPS Conference on Plasma Physics, Milan, Italy (2019)

BLUEPRINT: A novel approach to fusion reactor design
M. Coleman, S. McIntosh
Fusion Engineering and Design 139 (2019) 26-38

Could high H98-factor commercial tokamak power plants use Nb–Ti toroidal field coils?
S.B.L. Chislett-McDonald, E. Surrey, D.P. Hampshire
IEEE Transactions on Applied Superconductivity 29 (2019) 4200405

Engineering challenges for accelerated fusion demonstrators
E. Surrey
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 377 (2019) 20170442

2018

Fast evaluation of the current driven by electron cyclotron waves for reactor studies
E. Poli, M. Müller, H. Zohm, M. Kovari
Physics of Plasmas 25 (2018) 122501

Tokamak systems analyses using a fast 1D transport solver: Models and assessments
J.C. Rivas, E. Fable, R. Kemp, H. Lux, R. Wenninger
Fusion Engineering and Design 136 (2018) 1125-1129

Exploring a broad spectrum of design options for DEMO
R. Kemp, R. Wenninger, G. Federici, H. Reimerdes, R. Ambrosino, R. Brown, M. Coleman
Fusion Engineering and Design 136 (2018) 970-974

The next step in systems modelling: The integration of a simple 1D transport and equilibrium solver
K.V. Ellis, H. Lux, E. Fable, R. Kembleton, M. Siccinio
45th EPS Conference on Plasma Physics, Prague, Czech Republic (2018)

A one-dimentional scrape-off layer model in the reactor systems code 'PROCESS'
M. Kovari, A. Kallenbach, M. Siccinio
45th EPS Conference on Plasma Physics, Prague, Czech Republic (2018)

Approximation of the economy of fusion energy
S. Entler, J. Horacek, T. Dlouhy, V. Dostal
Energy 152 (2018) 489-497

Plasma physics for fusion reactor system codes: Framework and model code
E. Fable, C. Angioni, M. Siccinio, H. Zohm
Fusion Engineering and Design 130 (2018) 131-136

2017

Time-dependent power requirements for pulsed fusion reactors in systems codes
J. Morris, M. Kovari
Fusion Engineering and Design 124 (2017) 1203-1206

Heating & current drive efficiencies, TBR and RAMI considerations for DEMO
T. Franke, P. Agostinetti, K. Avramidis, A. Bader, Ch. Bachmann, W. Biel, T. Bolzonella, S. Ciattaglia, M. Coleman, F. Cismondi, G. Granucci, G. Grossetti, J. Jelonnek, I. Jenkins, M. Kalsey, R. Kembleton, N. Mantel, J.-M. Noterdaeme, N. Rispoli, A. Simonin, P. Sonato, M.Q. Tran, P. Vincenzi, R. Wenninger
Fusion Engineering and Design 123 (2017) 495-499

Uncertainties in power plant design point evaluations
H. Lux, R. Kemp, R. Wenninger, W. Biel, G. Federici, W. Morris, H. Zohm
Fusion Engineering and Design 123 (2017) 63-66

A stepladder approach to a tokamak fusion power plant
H. Zohm, F. Träuble, W. Biel, E. Fable, R. Kemp, H. Lux, M. Siccinio, R. Wenninger
Nuclear Fusion 57 (2017) 086002

Dealing with uncertainties in fusion power plant conceptual development
R. Kemp, H. Lux, M. Kovari, J. Morris, R. Wenninger, H. Zohm, W. Biel, G. Federici
Nuclear Fusion 57 (2017) 046024

Selected transport studies of a tokamak-based DEMO fusion reactor
E. Fable, R. Wenninger, R. Kemp
Nuclear Fusion 57 (2017) 022015

The physics and technology basis entering European system code studies for DEMO
R. Wenninger, R. Kembleton, C. Bachmann, W. Biel, T. Bolzonella, S. Ciattaglia, F. Cismondi, M. Coleman, A.J.H. Donné, T. Eich, E. Fable, G. Federici, T. Franke, H. Lux, F. Maviglia, B. Meszaros, T. Pütterich, S. Saarelma, A. Snickers, F. Villone, P. Vincenzi, D. Wolff and H. Zohm
Nuclear Fusion 57 (2017) 016011

2016

System code analysis of HELIAS-type fusion reactor and economic comparison with tokamaks
F. Warmer, S.B. Torrisi, C.D. Beidler, A. Drinklage, Y. Feng, J. Geiger, F. Schauer, Y. Turkin, R. Wolf, P. Xanthopoulos, R. Kemp, P. Knight, H. Lux, D. Ward
IEEE Transactions on Plasma Science 44 (2016) 1576-1585

Radiation and confinement in 0D fusion systems codes
H. Lux, R. Kemp, E. Fable, R. Wenninger
Plasma Physics and Controlled Fusion 58 (2016) 075001

From W7-X to a HELIAS fusion power plant: motivation and options for an intermediate-step burning-plasma stellarator
F. Warmer, C.D. Beidler, A. Drinklage, R. Wolf, The W7-X Team
Plasma Physics and Controlled Fusion 58 (2016) 074006

A parameter study of time-varying tritium production in solid-type breeder blankets
J. Shimwell, M. Kovari, S. Lilley, S. Zheng, L.W.G. Morgan, L.W. Packer, J. McMillan
Fusion Engineering and Design 104 (2016) 34-29

"PROCESS": A systems code for fusion power plants - Part 2: Engineering
M. Kovari, F. Fox, C. Harrington, R. Kembleton, P. Knight, H. Lux, J. Morris
Fusion Engineering and Design 104 (2016) 9-20

2015

Impurity radiation in DEMO systems modelling
H. Lux, R. Kemp, D.J. Ward, M. Sertoli
Fusion Engineering and Design 101 (2015) 42-51

Implementation and verification of a HELIAS module for the systems code PROCESS
F. Warmer, C.D. Beidler, A. Dinklage, K. Egorov, Y. Feng, J. Geiger, R. Kemp, P. Knight, F. Schauer, Y. Turkin, D. Ward, R. Wolf, P. Xanthopoulos
Fusion Engineering and Design 98-99 (2015) 2227-2230

Implications of toroidal field coil stress limits on power plant design using PROCESS
J. Morris, R. Kemp, M. Kovari, J. Last, P. Knight
Fusion Engineering and Design 98-99 (2015) 1118-1121

Optimal design of a toroidal field magnet system and cost of electricity implications for a tokamak using high temperature superconductors
T.S. Lee, I. Jenkins, E. Surrey, D.P. Hampshire
Fusion Engineering and Design 98-99 (2015) 1072-1075

HELIAS module development for systems codes
F. Warmer, C.D. Beidler, A. Dinklage, K. Egorov, Y. Feng, J. Geiger, F. Schauer, Y. Turkin, R. Wolf, P. Xanthopoulos
Fusion Engineering and Design 91 (2015) 60-66

2014

"PROCESS": A systems code for fusion power plants - Part 1: Physics
M. Kovari, R. Kemp, H. Lux, P. Knight, J. Morris, D.J. Ward
Fusion Engineering and Design 89 (2014) 3054-3069

EU DEMO design point studies
R. Kemp, D.J. Ward, G. Federici, R. Wenninger, J. Morris
25th IAEA Fusion Energy Conference, St. Petersburg, Russia (2014)

Impurity Radiation in DEMO
H. Lux, R. Kemp, D.J. Ward, M. Sertoli
41st EPS Conference on Plasma Physics, Berlin, Germany (2014)

2013

FRESCO, a simplified code for cost analysis of fusion power plants
C. Bustreo, G. Casini, G. Zollino, T. Bolzonella, R. Piovan
Fusion Engineering and Design 88 (2013) 3141-3151

Start-up requirements and current-drive issues for a pulsed DEMO, and potential implications for power output to the grid
W.E. Han, P.J. Knight, T.N. Todd, D.J. Ward
Fusion Engineering and Design 88 (2013) 994-997

Pulsed DEMO design assessment studies
T.N. Todd
Fusion Science and Technology 64 (2013) 76-85

2012

Benchmarking reactor systems studies by comparison of EU and Japanese system code results for different DEMO concepts
R. Kemp, M. Nakamura, D.J. Ward, K. Tobita, G. Federici
24th IAEA Fusion Energy Conference, San Diego, USA (2012)

Efforts towards improvement of systems codes for the Broader Approach DEMO design
M. Nakamura, R. Kemp, H. Utoh, D.J. Ward, K. Tobita, R. Hiwatari, G. Federici
Fusion Engineering and Design 87 (2012) 864-867

2011

Stress and fatigue in the magnets in DEMO in pulsed and steady-state operation using geometric scaling factors
M. Kovari
Fusion Engineering and Design 86 (2011) 2713-2716

2010

The physics of DEMO
D.J. Ward
Plasma Physics and Contolled Fusion 52 (2010) 124033

2009

Newly developing conceptions of DEMOs: Pulsing and hydrogen
D.J. Ward
Fusion Science and Technology 56 (2009) 581-588

2008

Economic consequences of fusion materials development
D.J. Ward, S.L. Dudarev
22nd IAEA Fusion Energy Conference, Geneva, Switzerland (2008)

2007

Power plant conceptual studies in Europe
D. Maisonnier, D. Campbell, I. Cook, L. Di Pace, L. Giancarli, J. Hayward, A. Li Puma, M. Medrano, P. Norajitra, M. Roccella, P. Sardain, M.Q. Tran and D. Ward
Nuclear Fusion 47 (2007) 1524-1532

2006

DEMO and fusion power plant conceptual studies in Europe
D. Maisonnier, I. Cook, S. Pierre, B. Lorenzo, D.P. Luigi, G. Luciano, N. Prachai, P. Aldo, PPCS Team
Fusion Engineering and Design 81 (2006) 1123-1130

2005

Physics, systems analysis and economics of fusion power plants
D.J. Ward
IAEA technical meeting on first generation of fusion power plants: Design and technology, Vienna, Austria (2005)

The economic viability of fusion power
D.J. Ward, I. Cook, Y. Lechon, R. Saez
Fusion Engineering and Design 75-79 (2005) 1221-1227

European fusion power plant studies
I. Cook, D. Maisonnier, N.P. Taylor, D.J. Ward, P. Sardain, L. Di Pace, L. Giancarli, S. Hermsmeyer, P. Norajitra, R. Forrest, PPCS Team
Fusion Science and Technology 47 (2005) 384-392

2002

Prospects for economic fusion electricity
I. Cook, R.L. Miller, D.J. Ward
Fusion Engineering and Design 63-64 (2002) 25-33

2001

Economically acceptable fusion power stations with safety and environmental advantages
D.J. Ward, N.P. Taylor, I. Cook
Fusion Engineering and Design 58-59 (2001) 1033-1036

The safety, environmental and economic implications of the use of silicon carbide in fusion power plant blankets
N.P. Taylor, I. Cook, R.A. Forrest, C.B.A. Forty, W.E. Han, D.J. Ward
Fusion Engineering and Design 58-59 (2001) 991-995

2000

A model of the availability of a fusion power plant
N.P. Taylor, P.J. Knight, D.J. Ward
Fusion Engineering and Design 51-52 (2000) 363-369

The effect of optimal wall loads and blanket technologies on the cost of fusion electricity
P.J. Knight, D.J. Ward
Fusion Engineering and Design 51-52 (2000) 345-350

A conceptual design of a spherical tokamak power plant
G.M. Voss, S. Allfrey, A. Bond, Q. Huang, P.J. Knight, V. Riccardo, H.R. Wilson
Fusion Engineering and Design 51-52 (2000) 309-318

The impact of physics assumptions on fusion economics
D.J. Ward, I. Cook, P.J. Knight
18th IAEA Fusion Energy Conference, Sorrento, Italy (2000)

Spherical tokamak power plant design issues
T.C. Hender, A. Bond, J. Edwards, P.J. Karditsas, K.G. McClements, J. Mustoe, D.V Sherwood, G.M. Voss, H.R. Wilson
Fusion Engineering and Design 48 (2000) 255-263

1996

Key issues for the economic viability of magnetic fusion power
T.C. Hender, P.J. Knight, I. Cook
Fusion Technology 30 (1996) 1605-1612