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1. D. D. Ryutov, R. H. Cohen, T. D. Rognlien, V. A. Soukhanovskii, and M. V. Umansky, “Comment on ‘Magnetic geometry and physics of advanced divertors: The X-divertor and the snowflake’ [Phys. Plasmas 20, 102507 (2013)],” Phys. Plasmas 21, 054701 (2014).
2. M. Kotschenreuther, P. Valanju, B. Covelle, and S. Mahajan, Phys. Plasmas 20, 102507 (2013).
3. M. Kotschenreuther, P. Valanju, J. Wiley, T. Rognlein, S. Mahajan, M. Pekker, W. Rowan, Huang He, T. Rognlein, and D. Gates, in Proceedings of the 20th International Conference on Fusion Energy, Vilamoura, Portugal (International Atomic Energy Agency, Vienna, 2004).
4. M. Kotschenreuther, P. Valanju, S. Mahajan, J. Wiley, M. Pekker, W. Rowan, Huang He, T. Rognlein, and D. Gates, in Proceedings of the 21st International Conference on Fusion Energy, Montpellier, France (International Atomic Energy Agency, Vienna, 2006).
5. M. Kotschenreuther, P. Valanju, S. Mahajan, and J. Wiley, Phys. Plasmas 14, 072502 (2007).
6. D. Ryutov, Phys. Plasmas 14, 064502 (2007).
7. D. Ryutov, R. Cohen, T. Rognlien, and M. Umansky, Phys. Plasmas 15, 092501 (2008).
8. D. Ryutov, M. Makowski, and M. Umansky, Plasma Phys. Control. Fusion 52, 105001 (2010).
9. D. Ryutov, R. H. Cohen, T. D. Rognlien, and M. Umansky, Plasma Phys. Controlled Fusion 54, 124050 (2012).
10.See for U. S. Burning Plasma Organization eNews, March 17, (2010).
11. V. A. Soukhanovskii, R. E. Bell, A. Diallo, S. Gerhardt, S. Kaye, E. Kolemen, B. P. LeBlanc, A. G. McLean, J. E. Menard, S. F. Paul, M. Podesta, R. Raman, T. D. Rognlien, A. L. Roquemore, D. D. Ryutov, F. Scotti, M. V. Umansky, D. Battaglia, M. G. Bell, D. A. Gates, R. Kaita, R. Maingi, D. Mueller, and S. A. Sabbagh, Phys. Plasmas 19, 082504 (2012).
12. S. Allen, V. Soukhanovskii, T. Osborne, E. Kolemen, J. Boedo, N. Brooks, M. Fenstermacher, R. Groebner, D. Hill, A. Hyatt, C. Lasnier, A. Leonard, M. Makowski, W. Meyer, A. McLean, T. Petrie, D. Ryutov, and J. Watkins, in Proceedings of the 24th International Conference on Fusion Energy, San Diego, USA (International Atomic Energy Agency, Vienna, 2012).
13. P. T. Lang, A. Loarte, G. Saibene, L. R. Baylor, M. Becoulet, M. Cavinato, S. Clement-Lorenzo, E. Daly, T. E. Evans, M. E. Fenstermacher, Y. Gribov, L. D. Horton, C. Lowry, Y. Martin, O. Neubauer, N. Oyama, M. J. Schaffer, D. Stork, W. Suttrop, P. Thomas, M. Tran, H. R. Wilson, A. Kavin, and O. Schmitz, Nucl. Fusion 53, 043004 (2013).
14. A. W. Leonard, T. A. Casper, R. J. Groebner, T. H. Osborne, P. B. Snyder, and D. M. Thomas, Nucl. Fusion 47, 552 (2007).
15. P. Stangeby, The Plasma Boundary of Magnetic Fusion Devices (Taylor & Francis, 2000).
16. H. Takase, J. Phys. Soc. Jpn. 70, 609 (2001).
17. R. J. Goldston, Nucl. Fusion 52, 013009 (2012).
18. T. Eich, B. Sieglin, A. Scarabosio, W. Fundamenski, R. Goldston, and A. Herrmann, Phys. Rev. Lett. 107, 215001 (2011).

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Relying on coil positions relative to the plasma, the “Comment on ‘Magnetic geometry and physics of advanced divertors: The X-divertor and the snowflake’ ” [Phys. Plasmas , 054701 (2014)], emphasizes a criterion for divertor characterization that was critiqued to be ill posed [M. Kotschenreuther , Phys. Plasmas , 102507 (2013)]. We find that no substantive physical differences flow from this criteria. However, using these criteria, the successful NSTX experiment by Ryutov [Phys. Plasmas , 054701 (2014)] has the coil configuration of an X-divertor (XD), rather than a snowflake (SF). On completing the divertor index (DI) versus distance graph for this NSTX shot (which had an inexplicably missing region), we find that the DI is like an XD for most of the outboard wetted divertor plate. Further, the “proximity condition,” used to define an SF [M. Kotschenreuther , Phys. Plasmas , 102507 (2013)], does not have a substantive physics basis to override metrics based on flux expansion and line length. Finally, if the criteria of the comment are important, then the results of NSTX-like experiments could have questionable applicability to reactors.


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