NASA LAW registration/abstract submission

[Stephanie Hansen <hansen50@llnl.gov>]

Dear conference organizers,

I have attached an abstract for the upcoming NASA Laboratory astrophysics 
workshop. I hope that the contribution is of sufficient interest for 
inclusion in the workshop.

Thank you,
Stephanie Hansen

Registration form
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Last name: Hansen
First name: Stephanie
Middle name/initial: Brooke
Affiliation: Lawrence Livermore National Laboratory
Street Address: 7000 East Avenue, L-473
City: Livermore
State: CA
Postal Code: 94550
Country: USA
Tel: (925) 422-6187
Fax: (925) 423-2302
E mail: hansen50@llnl.gov
Citizenship*: US
Abstract title:
Laboratory astrophysics on the ASDEX-Upgrade tokamak: Measurements and 
analysis of O, F, and Ne spectra in the 8 - 20 Å region
Special requirements: none
*Non-US citizens should contact Cara Loomis if travel reimbursement for the 
Workshop is required




Stephanie Hansen
LLNL PAT/V Division
P.O. Box 808, L-473
Livermore, CA 94550

phone: (925) 422-6187
fax: (925) 423-2302
NASA Laboratory Astrophysics Workshop 2006 Abstract

Title:

Laboratory astrophysics on the ASDEX-Upgrade tokamak: 
Measurements and analysis of O, F, and Ne spectra in the 8 - 20 Å region

Autors:
Stephanie Hansen 
Kevin Fournier
Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA

Michael Finkenthal
Plasma Spectroscopy Group, The Johns Hopkins University, Baltimore, MD 21218, USA 

Randall Smith
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, 02138, USA

Rudolf Neu
Thomas Pütterich
ASDEX-Upgrade Team
Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748 Garching, Germany

Abstract:

High-resolution measurements of K-shell emission from O, F, and Ne have been performed under various plasma conditions at the ASDEX Upgrade tokamak in Garching, Germany. The tokamak plasma is well characterized, with temperature and density profiles obtained independently of the spectroscopic data, providing an excellent test bed for spectroscopic modeling. The measured spectra show intriguing deviations from the typical thermal emission patterns of coronal plasmas, including anomalously intense high-Rydberg emission, high ratios of forbidden to resonance lines, and intense satellites. The possibility that these features are due to the presence of fast electrons is investigated by comparing the measured spectra with calculations from a multi-charge collisional-radiative model.