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TY - CONF AU - Neveu, N.R. AU - Antipov, S.P. AU - Halavanau, A. AU - Piot, P. AU - Power, J.G. AU - Spentzouris, L.K. AU - Whiteford, C. AU - Wisniewski, E.E. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Bunch Length Measurements Using CTR at the AWA with Comparison to Simulation J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - In this paper we present electron bunch length measurements at the Argonne Wakefield Accelerator (AWA) photoinjector facility. The AWA accelerator has a large dynamic charge density range, with electron beam charge varying between 0.1 nC - 100 nC, and laser spot size diameter at the cathode between 0.1 mm - 18 mm. The bunch length measurements were taken at different charge densities using a metallic screen and a Martin-Puplett interferometer to perform autocorrelation scans of the corresponding coherent transition radiation (CTR). A liquid helium-cooled 4K bolometer was used to register the interferometer signal. The experimental results are compared with Impact-T and OPAL-T numerical simulations. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4166 EP - 4168 KW - experiment KW - simulation KW - laser KW - gun KW - electron DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-THPMF048 UR - http://jacow.org/ipac2018/papers/thpmf048.pdf ER -