Joint Accelerator Conferences Website

The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.

Title	Status Update for the High Gain High Efficiency TESSA-266 Experiment
Authors	Y. Park, D.K. Dang, P.E. Denham, P. Musumecipresenter, N.S. Sudar UCLA, Los Angeles, USA R.B. Agustsson, T.J. Campese, I.I. Gadjev, A.Y. Murokh RadiaBeam, Los Angeles, California, USA C.C. Hall, S.D. Webb RadiaSoft LLC, Boulder, Colorado, USA Y. Sun, A. Zholents ANL, Lemont, Illinois, USA
Abstract	Tapering Enhanced Stimulated Superradiant Amplification (TESSA) allows to increase the efficiency of Free Electron Laser (FEL) based radiation generation from ~0.1% to 10% by using intense seed laser pulses, strongly tapered undulators and prebunched electron beams [1]. Initial results validating this method have already been obtained at 10 µm wavelength at Brookhaven National Laboratory [2]. We will present the design of an experiment to demonstrate the TESSA scheme at high gain and shorter wavelength (266 nm) using the APS injector linac at Argonne National Labor-atory (ANL) to obtain conversion efficiency of up to 10%. Undulator and focusing lattice design, as well as beam dynamics and diagnostics for this experiment will be discussed. An extension of the experiment to include the possibility of multi-bunch linac operation and an optical cavity around the undulator to operate in the TESSO regime will also be presented [3].
Footnotes & References	[1] J. Duris et al., New J. Phys. 17 063036 (2015) [2] N Sudar et al., Physical review letters, 117, 174801 (2016) [3] J. Duris et al., Physical Review Accelerators and Beams 21, 080705 (2018)
Funding	DOE grant No. DE-SC0009914 and DE-SC0018559
Paper	download THP073.PDF [0.514 MB / 4 pages]
Export	download ※ BibTeX ※ LaTeX ※ Text/Word ※ RIS ※ EndNote
Conference	FEL2019
Series	Free Electron Laser Conference (39th)
Location	Hamburg, Germany
Date	26-30 August 2019
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	Volker R.W. Schaa (GSI, Darmstadt, Germany); Winfried Decking (DESY, Hamburg, Germany); Harald Sinn (EuXFEL, Schenefeld, Germany); Gianluca Geloni (EuXFEL, Schenefeld, Germany); Siegfried Schreiber (DESY, Hamburg, Germany); Michaela Marx (DESY, Hamburg, Germany)
Online ISBN	978-3-95450-210-3
Online ISSN	""
Received	20 August 2019
Accepted	29 August 2019
Issue Date	05 November 2019
DOI	doi:10.18429/JACoW-FEL2019-THP073
Pages	730-733
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.