Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Synchrotron X-ray photoabsorption spectroscopy of plasmas (POSTER)
Year:2011
Research Areas
  • Engineering
Information
Abstract
Theoretical X-ray opacities are used in numerous radiative transfer simulations of plasmas at different temperatures and densities, for example astrophysics, fusion, metrology and EUV and X-rays radiation sources. However, there are only a reduced number of laboratories working on the validation of those theoretical results empirically, in particular for high temperature plasmas (> 1eV). One of those limitations comes from the use of broad band EUV- X ray sources to illuminate the plasma which, among other issues, present low reproducibility and repetition rate [1]. Synchrotron radiation facilities are a more appropriate radiation source in that sense, since they provide tunable, reproducible and high resolution photons. Only their ?low? photon intensity for these experiments has prevented researchers to use it for this purpose. However, as new synchrotron facilities improve their photon fluxes, this limitation not longer holds [2]. This work evaluates the experimental requirements to use third generation synchrotron radiation sources for the empirical measurement of opacities of plasmas, proposing a pausible experimental set-up to carry them out. Properties of the laser or discharge generated plasmas to be studied with synchrotron radiation will be discussed in terms of their maximum temperatures, densities and temporal evolution. It will be concluded that there are encouraging reasons to pursue these kind of experiments which will provide with an appropriate benchmark for theoretical opacities
International
Si
Congress
COST MP-0601 (European Cooperation on Science and Technology)
960
Place
París, France
Reviewers
Si
ISBN/ISSN
0000-0000
Start Date
16/11/2011
End Date
18/11/2011
From page
0
To page
0
Proceedings of the Conference
Participants
  • Autor: Jesus Alvarez Ruiz (UPM)
  • Autor: Manuel Cotelo Ferreiro (UPM)
  • Autor: A. García de la Varga (DENIM)
  • Autor: F. de Gaufridy (DENIM)
  • Autor: Pedro Velarde Mayol (UPM)
  • Autor: Jose Manuel Perlado Martin (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
  • Departamento: Ingeniería Nuclear
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)