Publications

1999
Waelbroeck FL. Stability of short wavelength tearing and twisting modes. Physics of Plasmas [Internet]. 1999;6. Publisher's Version
1997
Sauter O, La Haye RJ, Chang Z, Gates DA, Kamada Y, Zohm H, Bondeson A, Boucher D, Callen JD, Chu MS, et al. Beta limits in long-pulse tokamak discharges. Physics of Plasmas [Internet]. 1997;4. Publisher's Version
Waelbroeck FL, Fitzpatrick R. Rotation and Locking of Magnetic Islands. Phys. Rev. Lett. [Internet]. 1997;78 :1703–1706. Publisher's Version
1996
Waelbroeck FL. Gyroscopic stabilization of the internal kink mode. Physics of Plasmas [Internet]. 1996;3. Publisher's Version
1995
Miller RL, Waelbroeck FL, Hassam AB, Waltz RE. Stabilization of ballooning modes with sheared toroidal rotation. Physics of Plasmas [Internet]. 1995;2. Publisher's Version
Novakovskii SV, Guzdar PN, Drake JF, Liu CS, Waelbroeck FL. New unstable branch of drift resistive ballooning modes in tokamaks. Physics of Plasmas [Internet]. 1995;2. Publisher's Version
Kleva RG, Drake JF, Waelbroeck FL. Fast reconnection in high temperature plasmas. Physics of Plasmas [Internet]. 1995;2. Publisher's Version
1994
Waelbroeck FL, Dong JQ, Horton W, Yushmanov PN. Convective amplification of drift‐acoustic waves in sheared flows. Physics of Plasmas [Internet]. 1994;1. Publisher's Version
1993
Drake JF, Finn JM, Guzdar PN, Shapiro V, Shevchenko V, Waelbroeck F, Hassam AB, Liu CS, Sagdeev R. Reply to ‘‘Comment on ‘Peeling of convection cells and the generation of sheared flow’ [Phys. Fluids B 4, 488 (1992)]’’. Physics of Fluids B [Internet]. 1993;5. Publisher's Version
Hassam AB, Antonsen TM, Drake JF, Guzdar PN, Liu CS, McCarthy DR, Waelbroeck FL. Spontaneous and driven perpendicular rotation in tokamaks. Physics of Fluids B [Internet]. 1993;5. Publisher's Version
Waelbroeck FL. Onset of the sawtooth crash. Phys. Rev. Lett. [Internet]. 1993;70 :3259–3262. Publisher's Version
Waelbroeck FL. Nonlinear growth of strongly unstable tearing modes. Journal of Plasma Physics [Internet]. 1993;50 :477–494. Publisher's VersionAbstract
ABSTRACT Rutherford's theory of the tearing instability is extended to cases where current nonlinearities are important, such as long-wavelength modes in current slabs and the m = 1 instability in tokamaks with moderately large aspect ratios. Of particular interest is the possibility that the associated magnetic islands, as a result of secondary instabilities, have a singular response to the Ohmic diffusion of the current. A family of islands is used to test this possibility; it is found that the response remains bounded.
1992
Waelbroeck FL, Antonsen TM, Guzdar PN, Hassam AB. Theory of drift‐acoustic instabilities in the presence of sheared flows. Physics of Fluids B [Internet]. 1992;4. Publisher's Version
Drake JF, Finn JM, Guzdar P, Shapiro V, Shevchenko V, Waelbroeck F, Hassam AB, Liu CS, Sagdeev R. Peeling of convection cells and the generation of sheared flow. Physics of Fluids B [Internet]. 1992;4. Publisher's Version
1991
Waelbroeck FL, Chen L. Ballooning instabilities in tokamaks with sheared toroidal flows. Physics of Fluids B [Internet]. 1991;3. Publisher's Version
1989
Waelbroeck FL. Nonlinear growth of the quasi‐interchange instability. Physics of Fluids B [Internet]. 1989;1. Publisher's Version
Waelbroeck FL. Current sheets and nonlinear growth of the m=1 kink‐tearing mode. Physics of Fluids B [Internet]. 1989;1. Publisher's Version
1988
Bourianoff G, Moore B, Rosenbluth M, Waelbroeck F, Waelbroeck H, Wong HV. Adaptive eigenmode expansion for 3-D FEL simulations. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment [Internet]. 1988;272 :340 - 347. Publisher's VersionAbstract
A rigorous technique for selecting an optimal basic set of Gaussian-Laguerre eigenmodes is presented. This technique allows control of expansion truncation errors and preserves higher resolution in the electromagnetic field. Detailed algorithms are presented.
Waelbroeck FL, Hazeltine RD. Stability of low‐shear tokamaks. Physics of Fluids [Internet]. 1988;31. Publisher's Version
1987
Gentle KW, Richards B, Waelbroeck F. A measurement of hydrogen ion transport parameters in Tokamak discharges. Plasma Physics and Controlled Fusion [Internet]. 1987;29 :1077. Publisher's VersionAbstract
By modulating the small gas feed required to maintain a steady-state Tokamak discharge a small density perturbation may be induced from whose propagation particle transport parameters may be adduced. Experiments in TEXT show that the phenomena may be adequately described by a simple model with constant diffusion plus inward convection except near the density limit. Diffusion coefficients and convective velocities has been determined for a broad range of hydrogen discharges and found to scale approximately as (nq) -1 . The results are plausibly related to impurity transport parameters, thermal diffusivity, and particle confinement times. Diffusion coefficients for deuterium are systematically lower than for hydrogen.

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