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TY - CONF AU - Nichols, K.E. AU - Andrews, H.L. AU - Antipov, S.P. AU - Chen, G. AU - Conde, M.E. AU - Doran, D.S. AU - Ha, G. AU - Kim, D. AU - Liu, W. AU - Power, J.F. AU - Shao, J.H. AU - Simakov, E.I. AU - Whiteford, C. AU - Wisniewski, E.E. ED - Yamazaki, Yoshishige ED - Raubenheimer, Tor ED - McCausey, Amy ED - Schaa, Volker RW TI - Diamond Field Emitter Array Cathode Experimental Tests in RF Gun J2 - Proc. of NAPAC2019, Lansing, MI, USA, 01-06 September 2019 CY - Lansing, MI, USA T2 - North American Particle Accelerator Conference T3 - 4 LA - english AB - Diamond Field Emitter Array (DFEA) cathodes are arbitrarily shaped arrays of sharp (~50 nm tip size) nano-diamond pyramids with bases on the order of 3 to 25 microns and pitches 5 microns and greater. These cathodes have demonstrated very high bunch charge in tests at the L-band RF gun at the Argonne National Laboratory (ANL) Advanced Cathode Test Stand (ACTS). Intrinsically shaped electron beams have a variety of applications, but primarily to achieve high transformer ratios for Dielectric Wakefield Accelerators (DWA) when used in conjunction with Emittance Exchange (EEX) systems. Here we will present results from a number of recent cathode tests including bunch charge and YAG images. We have demonstrated shaped beam transport down the 2.54-meter beamline. In addition we will present emission simulations that demonstrate shielding effects for this geometry. PB - JACoW Publishing CP - Geneva, Switzerland SP - 618 EP - 621 KW - cathode KW - gun KW - experiment KW - electron KW - emittance DA - 2019/10 PY - 2019 SN - 2673-7000 SN - 978-3-95450-223-3 DO - doi:10.18429/JACoW-NAPAC2019-WEYBA5 UR - http://jacow.org/napac2019/papers/weyba5.pdf ER -