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@inproceedings{lumpkin:ibic2021-tupp19,
author = {A.H. Lumpkin and W. Berg and J.C. Dooling and A.Y. Murokh and P. Musumeci and D.W. Rule and Y. Sun and K.P. Wootton},
% author = {A.H. Lumpkin and W. Berg and J.C. Dooling and A.Y. Murokh and P. Musumeci and D.W. Rule and others},
% author = {A.H. Lumpkin and others},
title = {{Proposed Research with Microbunched Beams at LEA}},
booktitle = {Proc. IBIC'21},
pages = {244--248},
eid = {TUPP19},
language = {english},
keywords = {electron, bunching, laser, diagnostics, experiment},
venue = {Pohang, Rep. of Korea},
series = {International Beam Instrumentation Conference},
number = {10},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2021},
issn = {2673-5350},
isbn = {978-3-95450-230-1},
doi = {10.18429/JACoW-IBIC2021-TUPP19},
url = {https://jacow.org/ibic2021/papers/tupp19.pdf},
note = {https://doi.org/10.18429/JACoW-IBIC2021-TUPP19},
abstract = {{One of the advantages of relativistic electron beams with microbunching at UV to visible wavelengths is the potential to generate coherent optical transition radiation (COTR) at a metal foil for diagnostics purposes. A significant microbunching fraction of at least 10% is expected for the case of a seed laser at 257.5 nm copropagating with a 343-MeV electron beam through a modulator undulator (3.2 cm period) at the Linac Extension Area (LEA) at Argonne National Laboratory. Diagnostic plans have been made for the COTR based-characterization of the microbunched beam size (~100 microns), divergence (sub-mrad), microbunching fraction, spectrum, and bunch length (sub-ps), as well as coalignment of the laser pulse and electron beam as previously described**. For that case, COTR enhancements over OTR of more than seven million were calculated, and we expect a similar enhancement of coherent optical diffraction radiation (CODR). Thus, we propose the modification of the microbunching diagnostics station to support initial (CODR) experiments with beam transit through an aperture in a metal screen or near a metal edge at the second screen position of the interferometer. We would explore whether the coherence function for CODR provides a complementary beam size monitor and whether COTR and CODR interferences from the two interferometer screens provide divergence and pointing information.}},
}