Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT

JET Contributors; ASDEX Upgrade DIII-D Eurofusion MS; D. R. Hatch; T. Ahlgren; L. Aho-Mantila; M. Airila; C. Björkas; K. Heinola; A. Lahtinen; K. Nordlund; E. Safi; S.-P. Pehkonen; A. Salmi; T. Tala; J. Likonen; S. Koivuranta; A. Hakola; O. Asunta; M. Groth; J. Karhunen; T. Kurki-Suonio; B. Lomanowski; J. Lonnroth; M. I. K. Santala; S. K. Sipila; J. Varje; M. Weiland; A. Jarvinen

doi:10.1088/1741-4326/ab1edd

Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT

JET Contributors, ASDEX Upgrade DIII-D Eurofusion MS, D. R. Hatch, T. Ahlgren, L. Aho-Mantila, M. Airila, C. Björkas, K. Heinola, A. Lahtinen, K. Nordlund, E. Safi, S.-P. Pehkonen, A. Salmi, T. Tala, J. Likonen, S. Koivuranta, A. Hakola, O. Asunta, M. Groth, J. KarhunenT. Kurki-Suonio, B. Lomanowski, J. Lonnroth, M. I. K. Santala, S. K. Sipila, J. Varje, M. Weiland, A. Jarvinen

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

In plasmas heated with deuterium beams a deficit of the expected fusion neutron rate is an indicator of the deterioration of the fast-ion confinement, caused, for instance, by magnetohydrodynamic instabilities. The capability of predicting this deficit during the discharge relies on the availability of real-time estimates of the neutron rate from NBI codes which must be fast and accurate at the same time. Therefore, the recently developed real-time RABBIT code for neutral beam injection (NBI) simulations has been extended to output the distribution function and calculate the neutron emission. After the description of this newly installed diagnostics in RABBIT, benchmarks with NUBEAM, a massively used and validated Monte Carlo NBI solver, are discussed on ASDEX-Upgrade and JET cases. A first application for control-room intershot analysis on DIII-D is presented, and the results are compared on a large database with a slower NUBEAM analysis. Further application possibilities, e.g. for real-time control of Alfven eigenmodes, are outlined.

Original language	English
Article number	086002
Journal	Nuclear Fusion
Volume	59
Issue number	8
Number of pages	11
ISSN	0029-5515
DOIs	https://doi.org/10.1088/1741-4326/ab1edd
Publication status	Published - Aug 2019
MoE publication type	A1 Journal article-refereed

Fields of Science

114 Physical sciences

Access to Document

10.1088/1741-4326/ab1edd

Cite this

JET Contributors, ASDEX Upgrade DIII-D Eurofusion MS, Hatch, D. R., Ahlgren, T., Aho-Mantila, L., Airila, M., Björkas, C., Heinola, K., Lahtinen, A., Nordlund, K., Safi, E., Pehkonen, S-P., Salmi, A., Tala, T., Likonen, J., Koivuranta, S., Hakola, A., Asunta, O., Groth, M., ... Jarvinen, A. (2019). Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT. Nuclear Fusion, 59(8), [086002]. https://doi.org/10.1088/1741-4326/ab1edd

@article{22f20ec8ad934fde803137d50dcda1ed,

title = "Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT",

abstract = "In plasmas heated with deuterium beams a deficit of the expected fusion neutron rate is an indicator of the deterioration of the fast-ion confinement, caused, for instance, by magnetohydrodynamic instabilities. The capability of predicting this deficit during the discharge relies on the availability of real-time estimates of the neutron rate from NBI codes which must be fast and accurate at the same time. Therefore, the recently developed real-time RABBIT code for neutral beam injection (NBI) simulations has been extended to output the distribution function and calculate the neutron emission. After the description of this newly installed diagnostics in RABBIT, benchmarks with NUBEAM, a massively used and validated Monte Carlo NBI solver, are discussed on ASDEX-Upgrade and JET cases. A first application for control-room intershot analysis on DIII-D is presented, and the results are compared on a large database with a slower NUBEAM analysis. Further application possibilities, e.g. for real-time control of Alfven eigenmodes, are outlined.",

keywords = "114 Physical sciences",

author = "{JET Contributors} and {ASDEX Upgrade DIII-D Eurofusion MS} and Hatch, {D. R.} and S. Mahajan and L. Zheng and A. Diallo and R. Groebner and Hillesheim, {J. C.} and Maggi, {C. F.} and C. Giroud and F. Koechl and Parail and S. Saarelma and E. Solano and A. Chankin and S. Abduallev and M. Abhangi and P. Abreu and M. Afzal and Aggarwal, {K. M.} and T. Ahlgren and Ahn, {J. H.} and L. Aho-Mantila and N. Aiba and M. Airila and R. Albanese and V. Aldred and D. Alegre and E. Alessi and P. Aleynikov and A. Alfier and A. Alkseev and M. Allinson and B. Alper and C. Bj{\"o}rkas and Chang, {C. S.} and X. Gao and Y. Gao and J. Harrison and K. Heinola and A. Lahtinen and Y. Liu and K. Nordlund and A. Patel and S. Ranjan and E. Safi and J. Wu and Y. Zhou and S.-P. Pehkonen and A. Murari and A. Salmi and T. Tala and N. Bonanomi and J. Likonen and S. Koivuranta and A. Hakola and O. Asunta and M. Groth and J. Karhunen and T. Kurki-Suonio and B. Lomanowski and J. Lonnroth and Santala, {M. I. K.} and Sipila, {S. K.} and J. Varje and G. Telesca and {Van Eester}, D. and M. Weiland and A. Jarvinen",

year = "2019",

month = aug,

doi = "10.1088/1741-4326/ab1edd",

language = "English",

volume = "59",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing",

number = "8",

}

JET Contributors, ASDEX Upgrade DIII-D Eurofusion MS, Hatch, DR, Ahlgren, T, Aho-Mantila, L, Airila, M, Björkas, C, Heinola, K , Lahtinen, A , Nordlund, K, Safi, E, Pehkonen, S-P, Salmi, A, Tala, T, Likonen, J, Koivuranta, S, Hakola, A, Asunta, O, Groth, M, Karhunen, J, Kurki-Suonio, T, Lomanowski, B, Lonnroth, J, Santala, MIK, Sipila, SK, Varje, J, Weiland, M & Jarvinen, A 2019, 'Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT', Nuclear Fusion, vol. 59, no. 8, 086002. https://doi.org/10.1088/1741-4326/ab1edd

TY - JOUR

T1 - Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT

AU - JET Contributors

AU - ASDEX Upgrade DIII-D Eurofusion MS

AU - Hatch, D. R.

AU - Mahajan, S.

AU - Zheng, L.

AU - Diallo, A.

AU - Groebner, R.

AU - Hillesheim, J. C.

AU - Maggi, C. F.

AU - Giroud, C.

AU - Koechl, F.

AU - Parail, null

AU - Saarelma, S.

AU - Solano, E.

AU - Chankin, A.

AU - Abduallev, S.

AU - Abhangi, M.

AU - Abreu, P.

AU - Afzal, M.

AU - Aggarwal, K. M.

AU - Ahlgren, T.

AU - Ahn, J. H.

AU - Aho-Mantila, L.

AU - Aiba, N.

AU - Airila, M.

AU - Albanese, R.

AU - Aldred, V.

AU - Alegre, D.

AU - Alessi, E.

AU - Aleynikov, P.

AU - Alfier, A.

AU - Alkseev, A.

AU - Allinson, M.

AU - Alper, B.

AU - Björkas, C.

AU - Chang, C. S.

AU - Gao, X.

AU - Gao, Y.

AU - Harrison, J.

AU - Heinola, K.

AU - Lahtinen, A.

AU - Liu, Y.

AU - Nordlund, K.

AU - Patel, A.

AU - Ranjan, S.

AU - Safi, E.

AU - Wu, J.

AU - Zhou, Y.

AU - Pehkonen, S.-P.

AU - Murari, A.

AU - Salmi, A.

AU - Tala, T.

AU - Bonanomi, N.

AU - Likonen, J.

AU - Koivuranta, S.

AU - Hakola, A.

AU - Asunta, O.

AU - Groth, M.

AU - Karhunen, J.

AU - Kurki-Suonio, T.

AU - Lomanowski, B.

AU - Lonnroth, J.

AU - Santala, M. I. K.

AU - Sipila, S. K.

AU - Varje, J.

AU - Telesca, G.

AU - Van Eester, D.

AU - Weiland, M.

AU - Jarvinen, A.

PY - 2019/8

Y1 - 2019/8

N2 - In plasmas heated with deuterium beams a deficit of the expected fusion neutron rate is an indicator of the deterioration of the fast-ion confinement, caused, for instance, by magnetohydrodynamic instabilities. The capability of predicting this deficit during the discharge relies on the availability of real-time estimates of the neutron rate from NBI codes which must be fast and accurate at the same time. Therefore, the recently developed real-time RABBIT code for neutral beam injection (NBI) simulations has been extended to output the distribution function and calculate the neutron emission. After the description of this newly installed diagnostics in RABBIT, benchmarks with NUBEAM, a massively used and validated Monte Carlo NBI solver, are discussed on ASDEX-Upgrade and JET cases. A first application for control-room intershot analysis on DIII-D is presented, and the results are compared on a large database with a slower NUBEAM analysis. Further application possibilities, e.g. for real-time control of Alfven eigenmodes, are outlined.

AB - In plasmas heated with deuterium beams a deficit of the expected fusion neutron rate is an indicator of the deterioration of the fast-ion confinement, caused, for instance, by magnetohydrodynamic instabilities. The capability of predicting this deficit during the discharge relies on the availability of real-time estimates of the neutron rate from NBI codes which must be fast and accurate at the same time. Therefore, the recently developed real-time RABBIT code for neutral beam injection (NBI) simulations has been extended to output the distribution function and calculate the neutron emission. After the description of this newly installed diagnostics in RABBIT, benchmarks with NUBEAM, a massively used and validated Monte Carlo NBI solver, are discussed on ASDEX-Upgrade and JET cases. A first application for control-room intershot analysis on DIII-D is presented, and the results are compared on a large database with a slower NUBEAM analysis. Further application possibilities, e.g. for real-time control of Alfven eigenmodes, are outlined.

KW - 114 Physical sciences

U2 - 10.1088/1741-4326/ab1edd

DO - 10.1088/1741-4326/ab1edd

M3 - Article

VL - 59

JO - Nuclear Fusion

JF - Nuclear Fusion

SN - 0029-5515

IS - 8

M1 - 086002

ER -