EARL S. MARMAR, Senior Research
Scientist
Research Interests
Atomic physics and spectroscopy of low, medium and high ~Z ions,
and particle transport and plasma wall interactions in tokamak plasmas.
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Biographical Sketch
Dr. Earl Marmar received his Ph.D. in Physics from Princeton University
in 1977. During his graduate research at Princeton, he helped to
develop a technique to introduce an intense beam of low energy neutral
atoms into the edge of a tokamak plasma discharge that has found
subsequent application in fusion related experiments worldwide.
In the late 1970s, working on the Alcator A tokamak at MIT, Dr.
Marmar was the co-discoverer of the edge plasma radiative condensation
phenomenon which has come to be known as the MARFE. From 1984-87,
Dr. Marmar's research on Alcator C included the first unambiguous
observations of charge transfer, from excited neutral hydrogen to
highly stripped impurity ions in a tokamak plasma, and the lamb
shift in the ground state of hydrogen-like argon was measured with
unprecedented precision. In his experiments on Alcator C-Mod, Li
pellet imaging is being used to measure internal poloidal magnetic
field profiles and plasma turbulence.
Dr. Marmar has served on a number of advisory panels for the Department
of Energy, including the Fusion Energy Sciences Advisory Committee.
He is currently a member of the University Fusion Association Executive
Committee. In July 2003, Dr. Marmar was named Head of the Alcator
C-Mod Project.
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Selected Publications
Overview of recent Alcator C-Mod research, E.S. Marmar, B. Bai,
R.L. Boivin, P.T. Bonoli, et al., Nuclear Fusion 43(2003), in press.
Measurements of large poloidal variations of impurity density in
the Alcator C-Mod H-mode barrier region, T.S. Pedersen, R.S. Granetz,
E.S. Marmar, D. Mossessian, J.W. Hughes, I.H. Hutchinson, J. Terry,
and J.E. Rice, Physics of Plasmas 9(2002)4188.
Double transport barrier plasmas in Alcator C-Mod, J.E. Rice, P.T.
Bonoli, E.S. Marmar, S.J. Wukitch, R.L. Boivin, C.L. Fiore, R.S.
Granetz, M.J. Greenwald, A.E. Hubbard, J.W. Hughes, I.H. Hutchinson,
J.H. Irby, Y. Lin, D. Mossessian, M. Porkolab, G. Schilling, J.A.
Snipes and S.M. Wolfe, Nuclear Fusion 42(2002)510.
X-ray observations of 2l-nl' transitions and configuration-interaction
effects from Kr, Mo, Nb and Zr in near neon-like charge states from
tokamak plasmas, J.E. Rice, K.B. Fournier, J.A. Goetz, E.S. Marmar
and J.L. Terry, Journal of Physics B 33(2000)5435.
Precision measurement of the 1s Lamb shift in hydrogenlike argon,
E.S. Marmar, J.E. Rice, E. Kallne, J. Kallne and R.E. LaVilla, Physical
Review A 33(1986)774.
Observation of charge-transfer population of high-n levels in Ar+16
from neutral hydrogen in the ground and excited states in a tokamak
plasma, J.E. Rice, E.S. Marmar, J.L. Terry, E. Kallne and J. Kallne,
Physical Review Letters 56(1986)50.
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