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Title: Muon Acceleration-RLA and FFAG

Various acceleration schemes for muons are presented. The overall goal of the acceleration systems: large acceptance acceleration to 25 GeV and 'beam shaping' can be accomplished by various fixed field accelerators at different stages. They involve three superconducting linacs: a single pass linear Pre-accelerator followed by a pair of multi-pass Recirculating Linear Accelerators (RLA) and finally a non-scaling FFAG ring. The present baseline acceleration scenario has been optimized to take maximum advantage of appropriate acceleration scheme at a given stage. The solenoid based Pre-accelerator offers very large acceptance and facilitates correction of energy gain across the bunch and significant longitudinal compression trough induced synchrotron motion. However, far off-crest acceleration reduces the effective acceleration gradient and adds complexity through the requirement of individual RF phase control for each cavity. The RLAs offer very efficient usage of high gradient superconducting RF and ability to adjust path-length after each linac pass through individual return arcs with uniformly periodic FODO optics suitable for chromatic compensation of emittace dilution with sextupoles. However, they require spreaders/recombiners switchyards at both linac ends and significant total length of the arcs. The non-scaling Fixed Field Alternating Gradient (FFAG) ring combines compactness with very large chromatic acceptance (twice the injectionmore » energy) and it allows for large number of passes through the RF (at least eight, possibly as high as 15).« less
Authors:
 [1]
  1. Center for Advanced Studies of Accelerators Thomas Jefferson National Accelerator Facility 12000 Jefferson Avenue, Newport News, VA 23606 (United States)
Publication Date:
OSTI Identifier:
21611843
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1382; Journal Issue: 1; Conference: NuFact10: 12. international workshop on neutrino factories, superbeams, and betabeams, Mumbai (India), 20-25 Oct 2010; Other Information: DOI: 10.1063/1.3644312; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCELERATION; BEAM ACCEPTANCE; BEAM OPTICS; BEAM SHAPING; BEAM TRANSPORT; CORRECTIONS; GEV RANGE; LINEAR ACCELERATORS; MUON-NUCLEON INTERACTIONS; MUONS; NEUTRINO BEAMS; NEUTRINO OSCILLATION; OPTIMIZATION; RF SYSTEMS; SOLENOIDS; SYNCHROTRONS ACCELERATORS; BEAMS; CYCLIC ACCELERATORS; ELECTRIC COILS; ELECTRICAL EQUIPMENT; ELEMENTARY PARTICLES; ENERGY RANGE; EQUIPMENT; FERMIONS; INTERACTIONS; LEPTON BEAMS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LEPTONS; PARTICLE BEAMS; PARTICLE INTERACTIONS