Electron Bunch Profile Diagnostics in the Few FS Regime Using Coherent Smith-Purcell Radiation

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The rapid developments in the field of laser-driven particle acceleration hold the prospect of intense, highly relativistic electron bunches that are only a few fs long. The determination of the temporal profile of such bunches presents new challenges. The use of a radiative process such as Smith-Purcell radiation (SPR), is particularly promising in this respect. In this technique the beam is made to radiate a small amount of e/m radiation and the temporal profile is reconstructed from the measured spectral distribution of the radiation. We summarise the advantages of SPR and present the design parameters and preliminary results of the ... continued below

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4 pages

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Bartolini, R.; Source, /Oxford U. /Diamond Light; Clarke, C.; /SLAC; Delerue, N.; /Orsay, LAL et al. December 13, 2011.

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The rapid developments in the field of laser-driven particle acceleration hold the prospect of intense, highly relativistic electron bunches that are only a few fs long. The determination of the temporal profile of such bunches presents new challenges. The use of a radiative process such as Smith-Purcell radiation (SPR), is particularly promising in this respect. In this technique the beam is made to radiate a small amount of e/m radiation and the temporal profile is reconstructed from the measured spectral distribution of the radiation. We summarise the advantages of SPR and present the design parameters and preliminary results of the experiments at the FACET facility at SLAC. We also discuss a new approach to the problem of the recovery of the 'missing phase', which is essential for the accurate reconstruction of the temporal bunch profile.

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4 pages

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  • Presented at 2nd International Particle Accelerator Conference: IPAC 2011, San Sebastian, Spain, 4-9 Sep 2011

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  • Report No.: SLAC-PUB-14610
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 1032750
  • Archival Resource Key: ark:/67531/metadc834007

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  • December 13, 2011

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  • May 19, 2016, 3:16 p.m.

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  • Dec. 8, 2016, 3:45 p.m.

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Bartolini, R.; Source, /Oxford U. /Diamond Light; Clarke, C.; /SLAC; Delerue, N.; /Orsay, LAL et al. Electron Bunch Profile Diagnostics in the Few FS Regime Using Coherent Smith-Purcell Radiation, article, December 13, 2011; United States. (digital.library.unt.edu/ark:/67531/metadc834007/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.