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TY - CONF AU - Kuzikov, S.V. AU - Antipov, S.P. AU - Avrakhov, P.V. AU - Bodrov, S. AU - Fedotov, A.E. AU - Stepanov, A.N. AU - Vikharev, A.A. ED - Tavares, Daniel ED - Picoreti, Renan ED - Bruno, Gustavo ED - Marques, Sergio ED - Schaa, Volker R.W. TI - Energy Gain Measurement for Electrons Accelerated in a Single-Cycle THz Structure J2 - Proc. of IBIC2020, Santos, Brazil, 14-18 September 2020 CY - Santos, Brazil T2 - International Beam Instrumentation Conference T3 - 9 LA - english AB - Gradients on the order of 1 GV/m have been obtained via single cycle (~1 ps) THz pulses produced by the conversion of a high peak power laser radiation in nonlinear crystals (~1 mJ, 1 ps, up to 3% conversion efficiency). For electron beam acceleration with such broadband (0.1- 5 THz) pulses, we propose arrays of parabolic focusing micro-mirrors with common central. To measure energy gain of electrons in the THz structure we propose applying a voltage (up to 400 kV) to the structure respecting the cathode and anode. Electrons become preliminary accelerated at the entrance that makes design of the structure simpler, because velocity of particles is near to be constant and almost equals the speed of light. On the other hand, the anode can be reached only by the electrons accelerated in the THz field so that one can directly measure the resulting energy gain at the anode. PB - JACoW Publishing CP - Geneva, Switzerland SP - 170 EP - 173 KW - electron KW - laser KW - cathode KW - acceleration KW - focusing DA - 2020/10 PY - 2020 SN - 2673-5350 SN - 978-3-95450-222-6 DO - doi:10.18429/JACoW-IBIC2020-WEPP29 UR - https://www.jacow.org/ibic2020/papers/wepp29.pdf ER -