Skip to main content

News about Scitation

In December 2016 Scitation will launch with a new design, enhanced navigation and a much improved user experience.

To ensure a smooth transition, from today, we are temporarily stopping new account registration and single article purchases. If you already have an account you can continue to use the site as normal.

For help or more information please visit our FAQs.

banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
/content/aip/journal/pop/23/10/10.1063/1.4964292
1.
J. B. Taylor, Phys. Rev. Lett. 33, 1139 (1974).
http://dx.doi.org/10.1103/PhysRevLett.33.1139
2.
J. B. Taylor, Rev. Mod. Phys. 58, 741 (1986).
http://dx.doi.org/10.1103/RevModPhys.58.741
3.
M. Nagata, T. Kanki, N. Fukumoto, and T. Uyama, Phys. Plasmas 10, 2932 (2003).
http://dx.doi.org/10.1063/1.1580815
4.
T. R. Jarboe, Plasma Phys. Controlled Fusion 36, 945 (1994).
http://dx.doi.org/10.1088/0741-3335/36/6/002
5.
C. R. Sovinec, J. M. Finn, and D. del-Castillo-Negrete, Phys. Plasmas 8, 475 (2001).
http://dx.doi.org/10.1063/1.1335585
6.
E. B. Hooper, R. H. Bulmer, B. I. Cohen, D. N. Hill, C. T. Holcomb, B. Hudson, H. S. McLean, L. D. Pearlstein, C. A. Romero-Talamás, C. R. Sovinec, B. W. Stallard, R. D. Wood, and S. Woodruff, Plasma Phys. Controlled Fusion 54, 113001 (2012).
http://dx.doi.org/10.1088/0741-3335/54/11/113001
7.
A. J. Redd, B. A. Nelson, T. R. Jarboe, P. Gu, R. Raman, and R. J. Smith, Phys. Plasmas 9, 2006 (2002).
http://dx.doi.org/10.1063/1.1448832
8.
A. J. Redd, T. R. Jarboe, B. A. Nelson, R. G. O'Neill, and R. J. Smith, Phys. Plasmas 14, 112511 (2007).
http://dx.doi.org/10.1063/1.2800863
9.
R. Raman, B. A. Nelson, M. G. Bell, S. Gerhardt, H. W. Kugel, B. LeBlanc, R. Maingi, and J. Menard, Phys. Rev. Lett. 97, 175002 (2006).
http://dx.doi.org/10.1103/PhysRevLett.97.175002
10.
R. Raman, D. Mueller, S. C. Jardin, T. R. Jarboe, B. A. Nelson, M. G. Bell, S. P. Gerhardt, E. B. Hooper, S. M. Kaye, C. E. Kessel, J. E. Menard, M. Ono, V. Soukhanovskii, and NSTX Research Team, Nucl. Fusion 53, 073017 (2013).
http://dx.doi.org/10.1088/0029-5515/53/7/073017
11.
C. R. Sovinec, A. H. Glasser, T. A. Gianakon, D. C. Barnes, R. A. Nebel, S. E. Kruger, D. D. Schnack, S. J. Plimpton, A. Tarditi, and M. S. Chu, J. Comput. Phys. 195, 355386 (2004).
http://dx.doi.org/10.1016/j.jcp.2003.10.004
12.
F. Ebrahimi, E. B. Hooper, C. R. Sovinec, and R. Raman, Phys. Plasmas 20, 090702 (2013).
http://dx.doi.org/10.1063/1.4821974
13.
F. Ebrahimi, R. Raman, E. B. Hooper, C. R. Sovinec, and A. Bhattacharjee, Phys. Plasmas 21, 056109 (2014).
http://dx.doi.org/10.1063/1.4875337
14.
E. B. Hooper, C. R. Sovinec, R. Raman, F. Ebrahimi, and J. E. Menard, Phys. Plasmas 20, 092510 (2013).
http://dx.doi.org/10.1063/1.4821977
15.
D. Biskamp, Phys. Fluids 29, 1520 (1986).
http://dx.doi.org/10.1063/1.865670
16.
N. F. Loureiro, A. A. Schekochihin, and S. C. Cowley, Phys. Plasmas 14, 100703 (2007).
http://dx.doi.org/10.1063/1.2783986
17.
Y.-M. Huang and A. Bhattacharjee, Phys. Plasmas 20, 055702 (2013).
http://dx.doi.org/10.1063/1.4802941
18.
F. Ebrahimi and R. Raman, Phys. Rev. Lett. 114, 205003 (2015).
http://dx.doi.org/10.1103/PhysRevLett.114.205003
19.
F. Ebrahimi and R. Raman, Nucl. Fusion 56, 044002 (2016).
http://dx.doi.org/10.1088/0029-5515/56/4/044002
20.
E. B. Hooper, B. I. Cohen, H. S. McLean, R. D. Wood, C. A. Romero-Talamás, and C. R. Sovinec, Phys. Plasmas 15, 032502 (2008).
http://dx.doi.org/10.1063/1.2890772
21.
E. B. Hooper, C. R. Sovinec, R. Raman, and J. E. Menard, Bull. Am. Phys. Soc. 56(12), 255 (2011); LLNL Report No. LLNL-POST-510511, 2011.
22.
D. E. Post, R. V. Jensen, C. B. Tarter, W. H. Grasberger, and W. A. Lokke, At. Data Nucl. Data Tables 20, 397 (1977).
http://dx.doi.org/10.1016/0092-640X(77)90026-2
23.
R. Raman, private communication (November 2015).
24.
D. D. Ryutov, B. I. Cohen, R. H. Cohen, E. B. Hooper, and C. R. Sovinec, Phys. Plasmas 12, 084504 (2005).
http://dx.doi.org/10.1063/1.2030367
25.
Y.-M. Huang and E. G. Zweibel, Phys. Plasmas 16, 042102 (2009).
http://dx.doi.org/10.1063/1.3103789
26.
H. P. Furth, J. Killeen, and M. N. Rosenbluth, Phys. Fluids 6, 459 (1963).
http://dx.doi.org/10.1063/1.1706761
http://aip.metastore.ingenta.com/content/aip/journal/pop/23/10/10.1063/1.4964292
Loading
/content/aip/journal/pop/23/10/10.1063/1.4964292
Loading

Data & Media loading...

Loading

Article metrics loading...

/content/aip/journal/pop/23/10/10.1063/1.4964292
2016-10-06
2016-12-09

Abstract

An instability observed in whole-device, resistive magnetohydrodynamic simulations of the driven phase of coaxial helicity injection in the National Spherical Torus eXperiment is identified as a current-driven resistive mode in an unusual geometry that transiently generates a current sheet. The mode consists of plasma flow velocity and magnetic field eddies in a tube aligned with the magnetic field at the surface of the injected magnetic flux. At low plasma temperatures (∼10–20 eV), the mode is benign, but at high temperatures (∼100 eV) its amplitude undergoes relaxation oscillations, broadening the layer of injected current and flow at the surface of the injected toroidal flux and background plasma. The poloidal-field structure is affected and the magnetic surface closure is generally prevented while the mode undergoes relaxation oscillations during injection. This study describes the mode and uses linearized numerical computations and an analytic slab model to identify the unstable mode.

Loading

Full text loading...

/deliver/fulltext/aip/journal/pop/23/10/1.4964292.html;jsessionid=xkZlSI40or_cPQ-WXr6RYaSv.x-aip-live-06?itemId=/content/aip/journal/pop/23/10/10.1063/1.4964292&mimeType=html&fmt=ahah&containerItemId=content/aip/journal/pop
true
true

Access Key

  • FFree Content
  • OAOpen Access Content
  • SSubscribed Content
  • TFree Trial Content
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
/content/realmedia?fmt=ahah&adPositionList=
&advertTargetUrl=//oascentral.aip.org/RealMedia/ads/&sitePageValue=pop.aip.org/23/10/10.1063/1.4964292&pageURL=http://scitation.aip.org/content/aip/journal/pop/23/10/10.1063/1.4964292'
Right1,Right2,Right3,