Physics
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..795q.198b&link_type=abstract
WOMEN IN PHYSICS: 2nd IUPAP International Conference on Women in Physics. AIP Conference Proceedings, Volume 795, pp. 198-198 (
Physics
Plasma Confinement, Fusion Reactors, Tokamak Devices, Plasma Collision Processes, Magnetohydrodynamics, Astrophysical Plasma, Solar Corona, Plasma Simulation
Scientific paper
The poster describes work I have published with co-authors in theoretical and experimental studies of plasmas: both in the laboratory, with relevance to magnetically confined fusion, and naturally occurring, in the Sun's atmosphere (the corona). In the case of fusion plasmas, recent work on recombining plasmas in a linear plasma device, the ULS, is described, which develops understanding of the processes by which detachment is obtained in a tokamak divertor. Results of experimental studies of recombining plasmas are presented, interpreted through 1D plasma models and collisional-radiative models. In the case of the solar corona, we discuss coronal heating by magnetic reconnection. The question of how the solar corona is heated to temperatures of millions of degrees is a major outstanding problem in astrophysics. Some recent results of numerical simulation of forced magnetic reconnection are presented, focusing on the energy release, and we describe how relaxation theory can be used to calculate heating by multiple reconnection events. The presence of high-energy charged particles is an important diagnostic of magnetic reconnection, and models of particle acceleration by reconnecting fields are also presented.
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