Coherent Transition Radiation from Transversely Modulated Electron Beams

Conference · Thu Feb 01 00:00:00 EST 2018

DOI:https://doi.org/10.18429/JACoW-FEL2017-TUP015· OSTI ID:1413090

Halavanau, A.  ^[1]; Mihalcea, D.  ^[2]; Piot, P.  ^[1]; Antipov, S. P. ^[3]; Power, J. G. ^[3]; Liu, W.  ^[3]; Wisniewski, E. ^[3]; Whiteford, C. ^[3]; Neveu, N. ^[4]; Benediktovitch, A. ^[5]; Tyukhtin, A. V. ^[6]; Galyamin, S. N. ^[6]

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1. Fermilab; Northern Illinois U.; NICADD, DeKalb
2. Fermilab
3. Argonne
4. Argonne; IIT, Chicago
5. Belarus State U.; CFEL, Hamburg
6. St. Petersburg State U.

A transverse laser-shaping optical setup using microlens arrays (MLAs), previously developed and employed at Argonne Wakefield Accelerator (AWA), allows the formation of both highly uniform and modulated (patterned) beams. In the latter case, transverse modulation is imposed in the sub-millimeter scale. In the present study, we report the simulations of backward coherent transition radiation (CTR) emitted from a transversely modulated beam. We compare the case of a uniform round beam against different transverse modulation wavelengths by generating CTR on a steel target and measuring the autocorrelation function of the resulting radiation with an interferometer. We particularly focus on the differences between round and patterned beam distributions and discuss possible future applications of this setup in THz radiation generation.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1413090
• Report Number(s): FERMILAB-CONF-17-337-APC; oai:inspirehep.net:1642359
• Country of Publication: United States
• Language: English

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