Data di Pubblicazione:
2006
Citazione:
Free Electron Laser Study of free carbon clusters / C. Spezzani, E. Allaria, M. Coreno, F. Curbis, B. Diviacco, G. De Ninno, L. Romanzin, S. Tileva, M. Trovò, M. Amati, G. Bongiorno, C. Lenardi, T. Mazza, P. Milani, T.A. Mostefaoui, P.G.C. Piseri, L. Ravagnan - In: Proceedings of the Free Electron Laser Conference 2006[s.l] : null, 2006. - ISBN 978-3-9809534-3-6. - pp. 423-426 (( Intervento presentato al 28. convegno International Free Electron Laser Conference tenutosi a Berlin nel 2006.
Abstract:
UV absorption from carbon nanoparticles is a very
interesting astrophysical topic. The prominent hump
centred at 217.5 nm is the most dominant feature in the
interstellar extinction curve and also the most
controversial and a long-standing problem in
astrophysics. At the University of Milano an experimental
set-up based on a Pulsed Microplasma Cluster Source has
been developed for the investigation of free clusters at the
Elettra Gas Phase beamline. The cluster source produces
very intense cluster beams with tunable size distribution.
The design of the apparatus is extended with a chamber
for gas phase reaction (water vapour, CO, H2...) providing
a unique opportunity to study the gas phase properties of
carbonaceous particles in different environments.
We plan to investigate Resonant Raman scattering of
free carbon particles tuning the high brilliance UV/VIS
storage ring FEL of ELETTRA across the region of
217.5 nm where the UV absorption hump in astrophysical
data is observed and where a number of electronic
transitions exist for variable size linear carbon chains.
Tipologia IRIS:
03 - Contributo in volume
Elenco autori:
C. Spezzani, E. Allaria, M. Coreno, F. Curbis, B. Diviacco, G. De Ninno, L. Romanzin, S. Tileva, M. Trovò, M. Amati, G. Bongiorno, C. Lenardi, T. Mazza, P. Milani, T.A. Mostefaoui, P.G.C. Piseri, L. Ravagnan
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Titolo del libro:
Proceedings of the Free Electron Laser Conference 2006