Z. Abou-Assaleh, Ph.D.

Home About Links Contact

View page on Windows >>>

 
Zouhier Abou-Assaleh, Ph.D.
Theoretical Plasma Physics &
Controlled Thermonuclear Fusion Energy
 

Publications

By Z. Abou-Assaleh


Z. Abou-Assaleh, M. Petravic, R. Vesey, J.P. Matte, and T.W. Johnston.

"Non-Local Transport in a Tokamak Plasma Divertor with Recycling"

Contribution to Plasma Physics, 34 (1994), 175-179.

http://www.osti.gov/energycitations/servlets/purl/10189031-3l7sk4/native/10189031.pdf

http://worldcat.org/oclc/68212293?tab=holdings

 

 

Z. Abou-Assaleh, J.P. Matte, T.W. Johnston and R. Marchand,

"Fokker-Planck Modelling of Edge Plasma Near the Neutralizer Plate in a Tokamak"

Contrib. Plasma Phys. 32 (1992) 3/4, 268-272.

HTML

PDF

 

 

S.L. Gulick, B.L. Stansfield, Z. Abou-Assaleh, C. Boucher, J.P. Matte, T.W. Johnston and R. Marchand.

"Measurement of Pre-Sheath Flow Velocities by Laser-Induced Fluorescence"

Journal of Nuclear Materials 176&177 (1990) 1059-1063.

 

 

R. Marchand, Z. Abou-Assaleh and J.P. Matte.

"Nonlocal Fluxes at a Plasma Sheath"

Phys. Fluids B, Vol. 2, No. 6, 1247, June 1990.

Physics of Fluids B: Plasma Physics -- June 1990 -- Volume 2, Issue 6, pp. 1247-1251

Nonlocal fluxes at a plasma sheath

R. Marchand, Z. Abou-Assaleh, and J. P. Matte
INRS-Energie, C. P. 1020, Varennes, Quebec, J3X 1S2, Canada

(Received 11 October 1989; accepted 1 March 1990)

The particle and energy fluxes of electrons at the boundary of a plasma in contact with a perfectly absorbing plate are considered. In general, the fluxes are shown not to be determined by the plasma temperature and density at the plate but rather by a convolution of the plasma profiles in the vicinity of the plate. A simple empirical expression is proposed for the nonlocal fluxes, which approximately reproduces the results of a full kinetic calculation. The implications of this, to divertor plasmas near the neutralizer plate, are discussed. Physics of Fluids B: Plasma Physics is copyrighted by The American Institute of Physics.

Nonlocal fluxes at a plasma sheath

Nonlocal fluxes at a plasma sheath

Nonlocal fluxes at a plasma sheath

Nonlocal fluxes at a plasma sheath

 

 

Z. Abou-Assaleh, R. Marchand, J.P. Matte, T.W. Johnston and K.J. Parbhakar.

"Kinetic Modelling of Plasma Near the Neutralizer Plate in a Tokamak Divertor".

Contrib. Plasma Phys. 30 (1990) 1, 37-43.

 http://cat.inist.fr/?aModele=afficheN&cpsidt=6885144


 

J.H. Rogers, J.S. De Groot, Z. Abou-Assaleh, J.P. Matte, T.W. Johnston and M.D. Rosen.

"Electron Heat Transport in a Steep Temperature Gradient"

Phys. Fluids B. Vol. 1, No. 4, 741, April 1989.

Physics of Fluids B: Plasma Physics -- April 1989 -- Volume 1, Issue 4, pp. 741-749

Electron heat transport in a steep temperature gradient

J. H. Rogers and J. S. De Groot
Department of Applied Science, University of California Davis, Davis, California 95616
Z. Abou-Assaleh, J. P. Matte, and T. W. Johnston
INRS-Energie, Université du Québec, Varennes, Québec J0L 2P0, Canada
M. D. Rosen
Lawrence Livermore National Laboratory, Livermore, California 94550

(Received 27 June 1988; accepted 7 December 1988)

Temporal and spatial measurements of electron heat transport are made in the University of California Davis AURORA device (J. H. Rogers, Ph.D. dissertation, University of California, Davis, 1987). In AURORA, a microwave pulse heats a region of underdense, collisional, plasma (n/ncr <~1, where ncr =1.8×1010 cm–3 is the critical density, Te0 [approximately-equal-to]0.15 eV, and the electron scattering mean free path lambda[perpendicular]>~2 cm). In this region, strong thermal heating (Tc <~0.7 eV) as well as suprathermal heating (Th[approximately-equal-to]3 eV) is observed. The strong heating results in a steep temperature gradient that violates the approximations of classical heat diffusion theory (LT/lambda[perpendicular]>~3 for thermal electrons, where LT=Tc([partial-derivative]Tc/[partial-derivative]z)–1 is the cold electron temperature scale length. The time evolution of the electron temperature profile is measured using Langmuir probes. The measured relaxation of the temperature gradient after the microwave pulse is compared to calculations using the Fokker–Planck International code [Phys. Rev. Lett. 49, 1936 (1982)] and the multigroup, flux-limited, target design code lasnex [Comm. Plasma Phys. 2, 51 (1975)]. The electron distribution function at the end of the microwave pulse is used as initial conditions for both codes. The Fokker–Planck calculations are found to agree very well with the measurements. However, the flux-limited diffusion calculations do not agree with the measurements for any value of the flux limiter. Physics of Fluids B: Plasma Physics is copyrighted by The American Institute of Physics.

Electron heat transport in a steep temperature gradient

Electron heat transport in a steep temperature gradient

· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF)
· References in the article
· Citations to the Article (17)
 

http://cat.inist.fr/?aModele=afficheN&cpsidt=7274089

 

 

J.S. De Groot, J.H. Rogers, K. Mizuno, Z. Abou-Assaleh, J.P. Matte, T.W. Johnston, W. Seka, P. Young and R.P. Drake.

"Microwave and Laser Measurements of the Ion Acoustic Decay Instability and Electron Heat Transport"

Laser Interaction, Vol. 8. Edited by Heinrich Hora and George H. Miley (Plenum Publication Corporation, 1988).

 

View Articles / Dissertation with Citations to Z. Abou-Assaleh >>>

 
 
 
 
Copyright © Dr. Z. ABOU-ASSALEH
Send mail to zouhier@assaleh.com
 

View page on Windows >>>