Simulation of the CBETA 4-pass FFAG ERL using field maps — exclusively

Journal Article · 10 December 2019 · International Journal of Modern Physics A

DOI: https://doi.org/10.1142/S0217751X19420387 · OSTI ID:1529889

Meot, Francois ^[1]; Berg, J. S. ^[1]; Brooks, S. ^[1]; Trbojevic, D. ^[1]; Tsoupas, N. ^[1]; Crittenden, J. ^[2]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States)
2. Cornell Univ., Ithaca, NY (United States)

The Cornell-BNL Electron Test Accelerator (CBETA), a four-pass, 150 MeV energy recovery linac (ERL), is now in construction at Cornell. Commissioning commenced on March 2019. A particularity of CBETA is that a single channel loop recirculates the four energies (42, 78, 114 and 150 MeV). The return loop arcs are based on fixed-field alternating gradient (FFAG) optics. The 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 arcs. We introduce here a start-to-end simulation of the 4-pass ERL, based entirely, and exclusively, on the use of magnetic field maps to model the optical components.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
• Grant/Contract Number: SC0012704
• OSTI ID: 1529889
• Report Number(s): BNL-211811-2019-JAAM
• Journal Information: International Journal of Modern Physics A, Journal Name: International Journal of Modern Physics A Journal Issue: 36 Vol. 34; ISSN 0217-751X
• Publisher: World ScientificCopyright Statement
• Country of Publication: United States
• Language: English