Recent results of the SPARC free-electron laser

Serluca, Maurizio (2011) Recent results of the SPARC free-electron laser. Il nuovo cimento C, 34 (6). pp. 125-130. ISSN 1826-9885

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In this paper we report recent results obtained with the velocity bunching compression technique and the relative FEL experiment of the SPARC collaboration. The beam compression allows to work with short beam and high peak current without emittance growing, but it also induces a correlated energy chirp along the beam. The FEL experiment demonstrates the possibility of compensating the induced effects of the energy chirp by a proper taper of the undulator gaps. The typical chaotic spiking in the spectrum of the Self Amplified Spontaneous Emission (SASE) regime observed with untapered undulator is converted in a single longitudinal mode. This regime is called Single Spike SASE regime.

Item Type: Article
Uncontrolled Keywords: Free-electron lasers
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 10 Apr 2020 14:57
Last Modified: 10 Apr 2020 14:57

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