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TY - CONF AU - Méot, F. AU - Brooks, S.J. AU - Crittenden, J.A. AU - Trbojevic, D. AU - Tsoupas, N. ED - Schaa, Volker RW ED - Makino, Kyoko ED - Snopok, Pavel ED - Berz, Martin TI - A Full Field-Map Modeling of Cornell-BNL CBETA 4-Pass Energy Recovery Linac J2 - Proc. of ICAP2018, Key West, FL, USA, 20-24 October 2018 CY - Key West, FL, USA T2 - International Computational Accelerator Physics Conference T3 - 13 LA - english AB - The Cornell-BNL Electron Test Accelerator (CBETA) is a four-pass, 150 MeV energy recovery linac (ERL), now in construction at Cornell. A single fixed-field alternating gradient (FFAG) beam line recirculates the four energies, 42, 78, 114 and 150 MeV. The return loop is comprised of 10⁷ quadrupole-doublet cells, built using Halbach permanent magnet technology. Spreader and combiner sections (4 independent beam lines each) connect the 36 MeV linac to the FFAG loop. We present here a start-to-end simulation of the 4-pass ERL, entirely, and exclusively, based on the use of magnetic field maps to model the magnets and correctors. There are paramount reasons for that and this is discussed, detailed outcomes are presented, together with comparisons with regular beam transport (mapping based) techniques. PB - JACoW Publishing CP - Geneva, Switzerland SP - 186 EP - 190 KW - FFAG KW - linac KW - optics KW - dipole KW - simulation DA - 2019/01 PY - 2019 SN - 978-3-95450-200-4 DO - DOI: 10.18429/JACoW-ICAP2018-TUPAF08 UR - http://jacow.org/icap2018/papers/tupaf08.pdf ER -