Physics
Scientific paper
Apr 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..703..215l&link_type=abstract
PLASMAS IN THE LABORATORY AND IN THE UNIVERSE: New Insights and New Challenges. AIP Conference Proceedings, Volume 703, pp. 215
Physics
Magnetohydrodynamics And Plasmas
Scientific paper
The validity of current spectral diagnostic techniques for optically thin plasma is still controversial, especially under dynamical and/or inhomogeneous conditions. Mathematically, the underlying problem is ill-posed, the existing solutions being neither unique nor stable. In the case of inhomogeneous or dynamical plasma, some of the physical assumptions on which such methods rely may also be inaccurate or invalid. Recently, new strategies to validate a posteriori the results from diagnostic techniques have been designed and applied to EUV solar corona observations from the SERTS and SOHO-CDS experiments. In this paper, some aspects of such strategies are presented together with some preliminary results of work in progress on SOHO-CDS observations. It is shown how inaccuracies in the atomic modeling still undermine our confidence in current diagnostic techniques. This situation calls for improved modeling such as the application of the generalized collisional-radiative theory to atomic population density calculations and for high quality calculations of the relevant cross-sections for a large number of ions.
No associations
LandOfFree
Diagnostics of Coronal Plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Diagnostics of Coronal Plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diagnostics of Coronal Plasma will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1386168