TY - GEN
T1 - Early tests and simulation of quasi-integrable octupole lattices at the University of Maryland electron ring
AU - Ruisard, Kiersten
AU - Baumgartner, Heidi
AU - Beaudoin, Brian
AU - Haber, Irving
AU - Matthews, David
AU - Koeth, Timothy
N1 - Publisher Copyright:
Copyright © 2016 CC-BY-3.0 and by the respective authors.
PY - 2016/8/1
Y1 - 2016/8/1
N2 - Nonlinear quasi-integrable optics is a promising development on the horizon of high-intensity ring design. Large amplitude-dependent tune spreads, driven by strong nonlinear magnet inserts, lead to decoherence from incoherent tune resonances. This reduces intensity-driven beam loss while quasi-integrability ensures contained orbits. The experimental program at the University of Maryland Electron Ring (UMER) will explore the performance of a strong octupole lattice at a range of operating points. Early measurements use a distributed octupole lattice, consisting of several small octupole inserts. We vary lattice tune to change the quasi-integrable condition as well as probe behavior near different resonant conditions. Simulation results show there should be invariant conservation under carefully chosen conditions. We discuss the effect of steering errors on the lattice performance and on-going efforts to reduce these errors. We also discuss plans for a single-channel insert.
AB - Nonlinear quasi-integrable optics is a promising development on the horizon of high-intensity ring design. Large amplitude-dependent tune spreads, driven by strong nonlinear magnet inserts, lead to decoherence from incoherent tune resonances. This reduces intensity-driven beam loss while quasi-integrability ensures contained orbits. The experimental program at the University of Maryland Electron Ring (UMER) will explore the performance of a strong octupole lattice at a range of operating points. Early measurements use a distributed octupole lattice, consisting of several small octupole inserts. We vary lattice tune to change the quasi-integrable condition as well as probe behavior near different resonant conditions. Simulation results show there should be invariant conservation under carefully chosen conditions. We discuss the effect of steering errors on the lattice performance and on-going efforts to reduce these errors. We also discuss plans for a single-channel insert.
UR - http://www.scopus.com/inward/record.url?scp=85016995095&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85016995095
T3 - HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams
SP - 511
EP - 516
BT - HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams
PB - Joint Accelerator Conferences Website (JACoW)
T2 - 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams, HB 2016
Y2 - 3 July 2016 through 8 July 2016
ER -