Short wavelength limits of current shot noise suppression

Ariel Nause, Egor Dyunin, Avraham Gover

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Shot noise in electron beam was assumed to be one of the features beyond control of accelerator physics. Current results attained in experiments at Accelerator Test Facility in Brookhaven and Linac Coherent Light Source in Stanford suggest that the control of the shot noise in electron beam (and therefore of spontaneous radiation and Self Amplified Spontaneous Emission of Free Electron Lasers) is feasible at least in the visible range of the spectrum. Here, we present a general linear formulation for collective micro-dynamics of e-beam noise and its control. Specifically, we compare two schemes for current noise suppression: a quarter plasma wavelength drift section and a combined drift/dispersive (transverse magnetic field) section. We examine and compare their limits of applicability at short wavelengths via considerations of electron phase-spread and the related Landau damping effect.

Original languageEnglish
Article number083114
JournalPhysics of Plasmas
Issue number8
StatePublished - Aug 2014
Externally publishedYes


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