Jefferson Lab electron model of a muon recirculated linear accelerator

Neutrino factories (NF) and Muon Colliders (MC) require rapid acceleration of muon beams. A recirculating linear accelerator (RLA) together with high momentum acceptance recirculating arcs designed to transport more than one orbit, provides a fast and economical means of achieving this goal. We propose to test this concept by building a small machine, Jefferson Lab Electron Model of a Muon Recirculating Linear Accelerator (JEMMRLA). Scaling the muon momentum by the muon to electron mass ratio and changing the RF frequency from 200 MHz to 1.5 GHz leads to a compact machine which fits in a 25 × 7 m footprint. The electron beam of initial momentum of 4.5 MeV/c is injected at the center of a linac comprised of two 1.5 Ghz cavities. The recirculating arcs are made of fixed field combined function magnets providing quadrupole and dipole fields.