Amanda Hubbard


Principal Research Scientist





Imperial College of Science and Technology, University of London, U.K.
Ph.D., Plasma Physics, Measurement of Electron Density on JET by Microwave Reflectometry

Queen's University at Kingston, Ontario
B.Sc. (1st Class Hons.), Mathematics and Engineering. Specialization: Heat transfer and fluid mechanics.


Transport barriers; mm-wave diagnostics; integrated fusion scenarios.


Alcator C-Mod: Long time team member responsible for electron cyclotron emission diagnostics, which measure electron temperatures. Research interests focus on edge transport barriers (H-mode and new I-mode regime) and on integration of boundary solutions with core scenarios.

U.S. Burning Plasma Organization: Deputy Director. Mission of USBPO is to “Advance the scientific understanding of burning plasmas and ensure the greatest benefit from a burning plasma experiment by coordinating relevant U.S. fusion research with broad community participation.”

ITER ECE diagnostic design: Lead investigator for MIT subcontract to Univ. Texas, responsible for software design.

International Collaborations: Engaged in research on EAST, aiming to develop I-mode scenario.


A E Hubbard, D G Whyte, A Dominguez, J W Hughes, Y Ma, E S Marmar, Y Lin and M L Reinke, Threshold conditions for transitions to I-mode and H-mode with unfavourable ion drift direction, Nuclear Fusion. 52 (2012) 114009.

A. E. Hubbard, D.G. Whyte, R.M. Churchill, I. Cziegler, A. Dominguez, T. Golfinopoulos, J.W. Hughes, J.E. Rice, I. Bespamyatnov, M. J. Greenwald, N. Howard, B. Lipschultz, E. S. Marmar, M.L. Reinke, W. L. Rowan, J. L. Terry and the Alcator C-Mod Group, Edge energy transport barrier and turbulence in the I-mode regime on Alcator C-Mod, Phys. Plasmas 18 056115 (2011).

R. Maingi, A.E. Hubbard, H. Meyer, J.W. Hughes, A. Kirk, R. Maqueda, J.L. Terry and the Alcator C-Mod, MAST and NSTX teams, Comparison of small ELM characteristics and regimes in Alcator C-Mod, MAST and NSTX, Nucl. Fusion 51 (2011) 063036.

D.G. Whyte, A.E. Hubbard, J.W. Hughes, B. Lipschultz, J.E. Rice, E.S. Marmar, M. Greenwald, I. Cziegler, A. Dominguez, T. Golfinopoulos, N. Howard, L. Lin, R.M. McDermott, M. Porkolab, M.L. Reinke, J. Terry, N. Tsujii, S. Wolfe, S. Wukitch, Y. Lin and the Alcator C-Mod Team, I-mode: An H-mode Energy Confinement Regime with L-mode Particle Transport in Alcator C-Mod, Nuclear Fusion 50 (2010) 105005.

A. E. Hubbard. J. W. Hughes, I. O. Bespamyatnov, J. A. Snipes, B. LaBombard, I. M. Nunes, M. N. A. Beurskens, S. K. Erents, M. A. H. Kempenaars, B. Alper, S. D. Pinches, M. Valovič, R. Pasqualotto, A. Alfier, E. Giovannozzi and JET EFDA contributors, H-mode pedestal and threshold studies over an expanded operating space on Alcator C-Mod, Physics of Plasmas 14 (5) 056109 (2007).

A. E. Hubbard, Physics and scaling of the H-mode pedestal, Plasma Physics and Controlled Fusion 42 A15-A35. (Review paper) (2000).

Talks & Media

Pedestals and transitions in I-mode and comparison to H-mode, US/EU Transport Task Force Workshop, Salem, MA, April 30th, 2015.

Edge particle transport and heat flux in stationary high-confinement ELM-free regimes, 21st International Conference on Plasma Surface Interactions, Kanazawa, Japan, May 28, 2014.

Advances in burning plasma-related physics and technology in Magnetic Fusion, American Association of the Advancement of Science 2013 Annual Meeting, Boston, MA, February 16, 2013.

Progress in Performance and Understanding of Steady ELM-free I-modes on Alcator C-Mod, EX/1-3, 24th IAEA Fusion Energy Conference, San Diego, CA, October 9, 2012

Separation of energy and particle transport barriers in the I-mode regime on Alcator C-Mod and ASDEX Upgrade, 38th European Physical Society Conference on Plasma Physics, Strasbourg, France, June 27-July 1, 2011.

I-mode regime with an edge energy transport barrier but no particle transport barrier in Alcator C-Mod, 52nd Annual Meeting of the APS Division of Plasma Physics, Chicago, Nov 8-12, 2010.