Abstract
The results of the analysis of the uncertainty in measurements of fusion power of the DD and DT plasma scenarios of the ITER tokamak reactor by means of neutron flux monitors are presented. The measurement by three ITER neutron flux monitor systems–Divertor Neutron Flux Monitor (DNFM), Neutron Flux Monitor (NFM), and Micro-Fission Chamber (MFC)–has been simulated. The diagnostic systems considered are designed to measure the total neutron flux and fusion power of ITER plasma. The sources and magnitude of uncertainty in measurements of fusion power and the total neutron flux for various ITER plasma scenarios are examined. The magnitude of the required error in the calibration of the diagnostic detectors is estimated. On the basis of the results of the neutronic analysis and the requirements for the diagnostics set by the International Organization ITER, the expected performance characteristics of diagnostic systems are confirmed. A method to compensate the systematic measurement error of the DNFM due to the vertical displacement of the plasma is proposed.
REFERENCES
A. O. Kovalev et al., J. Fusion Energ. 39, 40 (2020). https://doi.org/10.1007/s10894-020-00232-x
A. R. Polevoi et al., in Proceedings of the 45th EPS Conference on Plasma Physics, Prague, Check Republic, July 2–6, 2018. http://ocs.ciemat.es/EPS2018PAP/pdf/P4.1009.pdf.
A. O. Kovalev et al., Vopr. At. Nauki Tekh., Ser. Termoyad. Sintez 42 (3), 64 (2019).
A. O. Kovalev et al., Vopr. At. Nauki Tekh., Ser. Termoyad. Sintez 43 (1), 18 (2021).
Yu. A. Kaschuck et al., AIP Conf. Proc. 988, 303 (2008).
J. Yang et al., Plasma Sci. Technol. 10, 141 (2008).
T. Nishitani et al., in Diagnostics for Experimental Thermonuclear Fusion Reactors 2, Ed. by P. E. Stott, G. Gorini, P. Prandoni, and E. Sindoni (Springer, Boston, MA, 1998). https://doi.org/10.1007/978-1-4615-5353-3_60
A. R. Polevoi et al., in Proceedings of the 42th EPS Conference on Plasma Physics, Lisbon, Portugal, June 22–26, 2015. http://ocs.ciemat.es/EPS2015PAP/pdf/P4.126.pdf.
R. R. Khayrutdinov et al., in Proceedings of the 30th EPS Conference on Contr. Fusion and Plasma Physics, St. Petersburg, July 7–11, 2003 (ECA, 2003) vol. 27A, P-3.163.
F. Imbeaux et al., Nucl. Fusion 55, 123006 (2015).
A. V. Krasilnikov et al., Nucl. Fusion 45, 1503 (2005). https://doi.org/10.1088/0029-5515/45/12/005
T. Hayashi et al., Rev. Sci. Instrum. 79, 10E506 (2008). https://doi.org/10.1063/1.2968709
E. S. Martazov et al., EPJ Web Conf. 253, 03003 (2021). https://doi.org/10.1051/epjconf/202125303003
A. A. Borisov, N. A. Deryabina, and D. V. Markovskii, Vopr. At. Nauki Tekh., Ser. Termoyad. Sintez 38 (3), 31 (2015).
S. V. Syromukov et al., At. Energy 110, 68 (2015).
J. A. Snipes et al., Nucl. Fusion 61, 106036 (2021).
L. Bertalot et al., in Proceedings of the 1st EPs Conference on Plasma Diagnostics 1st ECPD, Villa Mondragone, Frascati, Rome, Italy, April 14–17, 2015.
L. Bertalot et al., in Proceedings of the 27th Symposium on Fusion Technology (SOFT 2012), Liege, Belgium. https://doi.org/10.22323/1.240.0090
ACKNOWLEDGMENTS
We are grateful to the staff of the ITER International Organization (Saint-Paul-les-Durance, France) and, in particular, A.R. Polevoy for providing ITER plasma scenario data, assistance in performing calculations, and detailed discussions of the results.
Funding
The study was supported by the state contract between the Institution Project Center ITER and the Rosatom State Atomic Energy Corporation no. N.4a.241.19.22.1123 dated February 14, 2022, “Development, Pilot Production, Testing, and Preparation for Delivery of Special Equipment to Ensure the Fulfillment of Russia’s Obligations under the ITER project in 2022.”
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Translated by M. Shmatikov
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Kovalev, A.O., Rodionov, R.N., Vorobiev, V.A. et al. Measurements of ITER Fusion Power by Neutron Flux Monitors. Phys. Atom. Nuclei 86 (Suppl 2), S187–S197 (2023). https://doi.org/10.1134/S1063778823140077
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DOI: https://doi.org/10.1134/S1063778823140077