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Title: Development of ITER non-activation phase operation scenarios

Non-activation phase operations in ITER in hydrogen (H) and helium (He) will be important for commissioning of tokamak systems, such as diagnostics, heating and current drive (HCD) systems, coils and plasma control systems, and for validation of techniques necessary for establishing operations in DT. The assessment of feasible HCD schemes at various toroidal fields (2.65–5.3 T) has revealed that the previously applied assumptions need to be refined for the ITER non-activation phase H/He operations. A study of the ranges of plasma density and profile shape using the JINTRAC suite of codes has indicated that the hydrogen pellet fuelling into He plasmas should be utilized taking the optimization of IC power absorption, neutral beam shine-through density limit and H-mode access into account. The EPED1 estimation of the edge pedestal parameters has been extended to various H operation conditions, and the combined EPED1 and SOLPS estimation has provided guidance for modelling the edge pedestal in H/He operations. The availability of ITER HCD schemes, ranges of achievable plasma density and profile shape, and estimation of the edge pedestal parameters for H/He plasmas have been integrated into various time-dependent tokamak discharge simulations. In this paper, various H/He scenarios at a wide range of plasmamore » current (7.5–15 MA) and field (2.65–5.3 T) have been developed for the ITER non-activation phase operation, and the sensitivity of the developed scenarios to the used assumptions has been investigated to provide guidance for further development.« less
Authors:
 [1] ; ORCiD logo [2] ; ORCiD logo [3] ;  [4] ;  [1] ;  [2] ;  [5] ;  [1] ;  [6] ;  [7] ;  [4] ;  [1] ;  [1] ;  [1]
  1. ITER Organization, St. Paul Lez Durance (France)
  2. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  3. TU Wien, Vienna (Austria)
  4. Culham Science Centre, Abingdon (United Kingdom)
  5. Woodruff Scientific, Inc., Seattle, WA (United States)
  6. General Atomics, San Diego, CA (United States)
  7. Seoul National Univ. (Korea, Republic of). Dept. of Nuclear Engineering
Publication Date:
Grant/Contract Number:
AC02-09CH11466; IO/RFQ/13/9550/JTR
Type:
Accepted Manuscript
Journal Name:
Nuclear Fusion
Additional Journal Information:
Journal Volume: 57; Journal Issue: 8; Journal ID: ISSN 0029-5515
Publisher:
IOP Science
Research Org:
ITER Organization, St. Paul Lez Durance (France); Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); ITER Organization (France)
Contributing Orgs:
The ITPA Topical Group on Integrated Operation Scenarios
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ITER; non-activation phase; scenario; simulation; model
OSTI Identifier:
1393865

Kim, S. H., Poli, F. M., Koechl, F., Militello-Asp, E., Polevoi, A. R., Budny, R., Casper, T. A., Loarte, A., Luce, T. C., Na, Y. -S., Romanelli, M., Schneider, M., Snipes, J. A., and de Vries, P. C.. Development of ITER non-activation phase operation scenarios. United States: N. p., Web. doi:10.1088/1741-4326/aa763e.
Kim, S. H., Poli, F. M., Koechl, F., Militello-Asp, E., Polevoi, A. R., Budny, R., Casper, T. A., Loarte, A., Luce, T. C., Na, Y. -S., Romanelli, M., Schneider, M., Snipes, J. A., & de Vries, P. C.. Development of ITER non-activation phase operation scenarios. United States. doi:10.1088/1741-4326/aa763e.
Kim, S. H., Poli, F. M., Koechl, F., Militello-Asp, E., Polevoi, A. R., Budny, R., Casper, T. A., Loarte, A., Luce, T. C., Na, Y. -S., Romanelli, M., Schneider, M., Snipes, J. A., and de Vries, P. C.. 2017. "Development of ITER non-activation phase operation scenarios". United States. doi:10.1088/1741-4326/aa763e. https://www.osti.gov/servlets/purl/1393865.
@article{osti_1393865,
title = {Development of ITER non-activation phase operation scenarios},
author = {Kim, S. H. and Poli, F. M. and Koechl, F. and Militello-Asp, E. and Polevoi, A. R. and Budny, R. and Casper, T. A. and Loarte, A. and Luce, T. C. and Na, Y. -S. and Romanelli, M. and Schneider, M. and Snipes, J. A. and de Vries, P. C.},
abstractNote = {Non-activation phase operations in ITER in hydrogen (H) and helium (He) will be important for commissioning of tokamak systems, such as diagnostics, heating and current drive (HCD) systems, coils and plasma control systems, and for validation of techniques necessary for establishing operations in DT. The assessment of feasible HCD schemes at various toroidal fields (2.65–5.3 T) has revealed that the previously applied assumptions need to be refined for the ITER non-activation phase H/He operations. A study of the ranges of plasma density and profile shape using the JINTRAC suite of codes has indicated that the hydrogen pellet fuelling into He plasmas should be utilized taking the optimization of IC power absorption, neutral beam shine-through density limit and H-mode access into account. The EPED1 estimation of the edge pedestal parameters has been extended to various H operation conditions, and the combined EPED1 and SOLPS estimation has provided guidance for modelling the edge pedestal in H/He operations. The availability of ITER HCD schemes, ranges of achievable plasma density and profile shape, and estimation of the edge pedestal parameters for H/He plasmas have been integrated into various time-dependent tokamak discharge simulations. In this paper, various H/He scenarios at a wide range of plasma current (7.5–15 MA) and field (2.65–5.3 T) have been developed for the ITER non-activation phase operation, and the sensitivity of the developed scenarios to the used assumptions has been investigated to provide guidance for further development.},
doi = {10.1088/1741-4326/aa763e},
journal = {Nuclear Fusion},
number = 8,
volume = 57,
place = {United States},
year = {2017},
month = {6}
}