Speaker
Dr
Angelo Biagioni
(LNF)
Description
Plasma density represents a very important parameter for both laser wakefield acceleration and plasma wakefield acceleration, which use a gas-filled capillary plasma source. Several techniques can be used to measure the plasma density within a capillary discharge, which are mainly based on optical diagnostic methods, as an example the well-known spectroscopic method using the Stark broadening effect. In this work, we want to introduce a preliminary study about an alternative way to detect the plasma density, based on the shock waves produced by gas discharge in a capillary plasma source. Firstly, the measurements of the acoustic spectral content relative to the laser-induced plasmas by a solid target allowed us to understand the main properties of the acoustic waves produced during this kind of plasma generation; afterwards, we have extended such acoustic technique to the capillary plasma source in order to calibrate it by comparison with the stark broadening method.
Primary author
Dr
Angelo Biagioni
(LNF)
Co-authors
Dr
Alessandro Cianchi
(ROMA2)
Dr
Andrea Mostacci
(ROMA1)
Prof.
Arie Zigler
(LNF)
Dr
Cristina Vaccarezza
(LNF)
Dr
Domenico Di Giovenale
(LNF)
Dr
Enrica Chiadroni
(LNF)
Dr
Fabio Villa
(LNF)
Dr
Francesco Filippi
(ROMA1)
Dr
Giampiero Di Pirro
(LNF)
Dr
Marco Bellaveglia
(LNF)
Dr
Maria Pia Anania
(LNF)
Dr
Massimo Ferrario
(LNF)
Dr
Riccardo Pompili
(LNF)
Dr
Vladimir Shpakov
(LNF)
