Relatore
Alessandro Cianchi
(ROMA2)
Descrizione
The new frontier in the particle beam accelerator is the so called plasma acceleration. Using the strong electric field inside a plasma is possible to achieve accelerating gradients order of magnitude larger in respect to the actual technologies. Different schemes have been proposed and several already tested, producing beams of energy of several GeV. Mainly two approaches are followed: the beam is directly produced by the interaction of a TW/PW class laser with a gas jet, or a preexisting particle beam is accelerated in a plasma channel. In both cases a precise determination of the emerging beam parameter is mandatory for the fine tuning of the devices. The measurement of these parameters, in particular the emittance, is not trivial, mainly due to the large energy spread and tight focusing of these beams or to the background noise produced in the plasma channel. We show the problems related to the diagnostic of this kind of beams and the proposed or already realized solutions.
Autore principale
Alessandro Cianchi
(ROMA2)