Plasma density represents a very important parameter for both laser wakefield 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 for example the well-known spectroscopic method using the Stark broadening effect. In this work, we introduce a preliminary study on an alternative way to detect the plasma density, based on the shock waves produced by gas discharge in a capillary. 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.

Electron density measurement in gas discharge plasmas by optical and acoustic methods / Biagioni, Angelo; Anania, M. P.; Bellaveglia, Marco; Chiadroni, E.; Cianchi, Antonella; Di Giovenale, Domenico; Di Pirro, G.; Ferrario, Massimo; Filippi, Francesco; Mostacci, Andrea; Pompili, R.; Shpakov, V.; Vaccarezza, Cristina; Villa, F.; Zigler, A.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 11:8(2016), pp. C08003-C08003. [10.1088/1748-0221/11/08/C08003]

Electron density measurement in gas discharge plasmas by optical and acoustic methods

BIAGIONI, ANGELO;BELLAVEGLIA, MARCO;Chiadroni, E.;CIANCHI, ANTONELLA;DI GIOVENALE, DOMENICO;FERRARIO, MASSIMO;FILIPPI, FRANCESCO;MOSTACCI, Andrea;VACCAREZZA, CRISTINA;
2016

Abstract

Plasma density represents a very important parameter for both laser wakefield 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 for example the well-known spectroscopic method using the Stark broadening effect. In this work, we introduce a preliminary study on an alternative way to detect the plasma density, based on the shock waves produced by gas discharge in a capillary. 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.
Plasma diagnostics - interferometry, spectroscopy and imaging; Plasma generation (laser-produced, RF, x ray-produced); Instrumentation; Mathematical Physics
01 Pubblicazione su rivista::01a Articolo in rivista
Electron density measurement in gas discharge plasmas by optical and acoustic methods / Biagioni, Angelo; Anania, M. P.; Bellaveglia, Marco; Chiadroni, E.; Cianchi, Antonella; Di Giovenale, Domenico; Di Pirro, G.; Ferrario, Massimo; Filippi, Francesco; Mostacci, Andrea; Pompili, R.; Shpakov, V.; Vaccarezza, Cristina; Villa, F.; Zigler, A.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 11:8(2016), pp. C08003-C08003. [10.1088/1748-0221/11/08/C08003]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/934000
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