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Plasma wake-field acceleration experiments are performed at the SPARC_LAB test facility by using a gas-filled capillary plasma source composed of a dielectric capillary. The electron can reach GeV energy in a fewcentimeters, with an accelerating gradient orders of magnitude larger than provided by conventional techniques.In this acceleration scheme, wake fields produced by passing electron beams through dielectric structures candetermine a strong beam instability that represents an important hurdle towards the capability to focus high-current electron beams in the transverse plane. For these reasons, the estimation of the transverse wake-fieldamplitudes assumes a fundamental role in the implementation of the plasma wake-field acceleration. In thiswork, it presented a study to investigate which parameters affect the wake-field formation inside a cylindricaldielectric structure, both the capillary dimensions and the beam parameters, and it is introduced a quantitativeevaluation of the longitudinal and transverse electric fields.

Wake fields effects in dielectric capillary / Biagioni, A.; Anania, M. P.; Bellaveglia, M.; Brentegani, E.; Castorina, G.; Chiadroni, E.; Cianchi, A.; Di Giovenale, D.; Di Pirro, G.; Fares, H.; Ficcadenti, L.; Filippi, F.; Ferrario, M.; Mostacci, A.; Pompili, R.; Scifo, J.; Spataro, B.; Vaccarezza, C.; Villa, F.; Zigler, A.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - ELETTRONICO. - (2018). [10.1016/j.nima.2018.01.028]

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