Accelerator Division

Beam diagnostics for plasma wake-field acceleration and betatron radiation

by Vladimir Spakov

Aula Divisione Acceleratori (LNF INFN)

Aula Divisione Acceleratori


One of the main goals of the SPARC Lab activities is to deliver high qual- ity electron beam accelerated in plasma. The quality of the beam in plasma basedacceleration depends on the proper matching of the beam before the injection to the plasma and after the acceleration. In order to succeed in both of thosetasks a proper diagnostics system is a paramount. Thus in this work our main objective is creation/modification of the conventional diagnostics tools to meet the requirements for the plasma based acceleration. Namely, the matching of the beam to the plasma requires sub-micron resolution in transverse and f s resolution in longitudinal directions. Alongside with conventional tools at SPARC Lab we investigate an alter- native possibilities for diagnostics. Duringthe plasma wake-field acceleration the electron beams emit so called betatron radiation (BR). Since the param- eters of BR (e.g. spectrum) depend on parameters of the beam, we study the possibilities to use BR in order to reconstruct certain parameters of the beam - its transverse size for example
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