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Tokamaks and Spherical Tokamaks

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Fusion's Promise

Summary

Anyone with a rudimentary knowledge of the quest for fusion power will know that for many years, the leading candidate has been a magnetic confinement device called the tokamak, from a Russian acronym for toroidal chamber with an axial magnetic field. At least 221 tokamaks have been built, planned, or decommissioned worldwide. Almost every modern nation interested in fusion has had a tokamak machine—from Kazakhstan to Russia to Japan to Brazil. For almost a generation, a large majority of Americans involved in fusion—researchers, government officials, scientists, and university professors—have been tokamak people. This chapter is an overview of the development of the tokamak, its successes to date, and how it eventually became the most dominant fusion reactor approach. Readers looking for more detail on its history and technology should consult the Recommended Reading section, which lists several excellent books on the subject.

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References

  1. Balshaw, Nick. All-the-World’s Tokamaks. 7 Mar. 2018, www.tokamak.info.

  2. Watkins, M. L. “Physics of high performance JET plasmas in DT.” Nuclear Fusion, vol. 39, no. 9Y, 1999, p. 1227.

    Google Scholar 

  3. Henderson, Mark. “Re: JET Question.” Received by Matt Moynihan. 24 June 2017.

    Google Scholar 

  4. “NPRE Distinguished Alumni.” University of Illinois Urbana-Champaign, 18 Oct. 2015, http://npre.illinois.edu/npre-distinguished-alumni. Accessed 18 Oct. 2015.

  5. Buck, Alice. A History of the Energy Research and Development Administration. E-book, Washington, DC, Energy Office of Management, 1982, pp. 0–22.

    Google Scholar 

  6. “Commercializing Fusion Energy” William J Nuttall, IOP Science, Published December 2020.

    Google Scholar 

  7. Gibne, Elizabeth. “Five-year Delay Would Spell End of ITER.” Nature.com. Nature Publishing Group, 31 July 2014. Web. 06 Oct. 2015.

  8. Cho, Adrian. “Cost Skyrockets for United States’ Share of ITER Fusion Project.” Science/AAAS, 10 Apr. 2014, https://www.sciencemag.org/news/2014/04/cost-skyrockets-united-states-share-iter-fusion-project. Accessed 27 Oct. 2014.

  9. “Currency Calculator Converter Euro to US Dollar.” X-Rates, 27 Oct. 2014, http://www.x-rates.com/calculator/. Accessed 27 Oct. 2014.

  10. 20th International Stellarator-Heliotron Workshop, 5–9 Oct. 2015, Max Planck Institute, Greifswald, Germany. https://iopscience.iop.org/journal/0741-3335/page/20th-International-stellarator-heliotron-workshop

  11. Grieger, G., J. Nührenberg, H. Renner, J. Sapper, and H. Wobig. “HELIAS Stellarator Reactor Studiesand Related European Technology Studies.” Fusion Engineering and Design 25.1–3 (1994): 73–84. 4 Apr. 2016.

    Google Scholar 

  12. Wobig, H., T. Andreeva, and C.D. Beidler. “Recent Development in Helias Reactor Studies.” 19th. IAEA- Fusion Energy Conference. IAEA FT/1-6, n.d. 04 Apr. 2016.

    Google Scholar 

  13. ARPA-E. ALPHA Program Overview. US Department of Energy, 2014. https://arpa-e.energy.gov/sites/default/files/documents/files/ALPHA_ProgramOverview.pdf.

  14. Jassby, Daniel. “Fusion reactors: Not what they’re cracked up to be.” The Bulletin, 19 Apr. 2017, https://thebulletin.org/2017/04/fusion-reactors-not-what-theyre-cracked-up-to-be/.

  15. Morton, D. C. “Lyman Spitzer: Astronomer, Physicist, Engineer, and Mountaineer.” The Spitzer Space Telescope: New Views of the Cosmos, vol. 357, 2006.

    Google Scholar 

  16. Rummel, Thomas, et al. “The superconducting magnet system of the stellarator Wendelstein 7-X.” IEEE Transactions on Plasma Science, vol. 40, no. 3, 2012, pp. 769–76.

    Google Scholar 

  17. Creely, A. J., et al. “Overview of the SPARC Tokamak.” Journal of Plasma Physics, vol. 86, no. 5, 2020.

    Google Scholar 

  18. Pechacek, R. E., et al. “Measurement of the plasma width in a ring cusp.” Physical Review Letters, vol. 45, no. 4, 1980, p. 256.

    Google Scholar 

  19. Perea, A., R. Martin, J.l. Alvarez Rivas, J. Botija, J.r. Cepero, J.a. Fabregas, J. Guasp, A. Lopez Fraguas, A. Perez-Navarro, E. Rodriguez Solano, B.a. Carreras, K.k. Chipley, T.c. Hender, T.c. Jernigan, J.f. Lyon, and B.e. Nelson. "Description of the Heliac Tj-Ii And Its research System." Fusion Technology 1986 (1986):673–78.

    Google Scholar 

  20. Miller, R.l., and R.a. Krakowski. “Modular Stellarator Fusion Reactor Concept.” Los AlamosLA-8978MS (1981): 1–161. 4 Apr. 2016

    Google Scholar 

  21. Proc. of 20th International Stellarator-Heliotron Workshop (ISHW), Max Planck Institute, Greifswald, Germany. Greifswald, 2015.

    Google Scholar 

  22. Grieger, G., J. Nührenberg, H. Renner, J. Sapper, and H. Wobig. “HELIAS Stellarator Reactor Studiesand Related European Technology Studies.” Fusion Engineering and Design 25.1–3 (1994): 73–84. 4 Apr. 2016.

    Google Scholar 

  23. Kikuchi, M., and JT‐60 Team. “Plasma Physics found in JT‐60 Tokamak over the Last 20 years.” AIP Conference Proceedings. Vol. 1150. No. 1. American Institute of Physics, 2009

    Google Scholar 

  24. Grimm, R. C., et al. “MHD stability properties of bean-shaped tokamaks.” Nuclear fusion 25.7 (1985): 805.

    Google Scholar 

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Moynihan, M., Bortz, A.B. (2023). Tokamaks and Spherical Tokamaks. In: Fusion's Promise. Springer, Cham. https://doi.org/10.1007/978-3-031-22906-0_6

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  • DOI: https://doi.org/10.1007/978-3-031-22906-0_6

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