Optical diagnostics for density measurement in high-quality laser-plasma electron accelerators
Authors: Brandi F., Gizzi LA
Autors Affiliation: Intense Laser Irradiation Laboratory (ILIL), Istituto Nazionale di Ottica – Consiglio Nazionale delle Ricerche (INO-CNR),Sede Secondaria di Pisa, Via Moruzzi, 1, 56124 Pisa, Italy;
Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Pisa, Largo Bruno Pontecorvo, 3, 56127 Pisa, Italy
Abstract: Implementation of laser-plasma-based acceleration stages in user-oriented facilities requires the definition anddeployment of appropriate diagnostic methodologies to monitor and control the acceleration process. An overview isgiven here of optical diagnostics for density measurement in laser-plasma acceleration stages, with emphasis on well-established and easily implemented approaches. Diagnostics for both neutral gas and free-electron number densityare considered, highlighting real-time measurement capabilities. Optical interferometry, in its various configurations,from standard two-arm to more advanced common-path designs, is discussed, along with spectroscopic techniques suchas Stark broadening and Raman scattering. A critical analysis of the diagnostics presented is given concerning theirimplementation in laser-plasma acceleration stages for the production of high-quality GeV electron bunches.
Journal/Review: HIGH POWER LASER SCIENCE AND ENGINEERING
Volume: 7 Pages from: e26-1 to: e26-11
KeyWords: gas target; interferometry; laser-plasma; laser wake-field acceleration; Raman scattering; Stark broadeningDOI: 10.1017/hpl.2019.11Citations: 9data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-12-05References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here