31 July 2016 to 5 August 2016
Gaylord Hotel and Conference Center
US/Eastern timezone

Integrable RCS as a proposed replacement for Fermilab Booster

3 Aug 2016, 10:30
15m
Woodrow Wilson B (Gaylord Hotel)

Woodrow Wilson B

Gaylord Hotel

Oral Working Group 7 WG7

Speaker

Dr. Jeffrey Eldred (Fermilab)

Abstract

Integrable optics is an innovation in particle accelerator design that permits a greater betatron tune spread and damps collective instabilities. An integrable RCS would be an effective replacement for the Fermilab Booster, as part of a plan to reach multi-MW beam power at 120 GeV. We provide an example integrable lattice with features of a modern RCS - dispersion-free drifts, low momentum compaction factor, superperiodicity, chromaticity correction, bounded beta functions, and separate-function magnets.

Summary

Integrable optics is an innovation in particle accelerator design that enables highly nonlinear transverse motion while avoiding parametric resonances. The efficacy of accelerator design incorporating integrable optics will undergo comprehensive experimental tests at the Fermilab Integrable Optics Test Accelerator (IOTA) over the next several years. Present evidence indicates that integrable optics will allow storage of more intense particle beams by permitting a greater betatron tune spread and by damping collective instabilities. Consequently, an integrable RCS would be an effective replacement for the Fermilab Booster, and would enable the Fermilab proton complex to reach multi-MW beam power at 120 GeV. Integrable optics requires arcs with integer-pi phase advance followed by drifts with matched beta functions. We provide an example integrable lattice with features of a modern RCS - long dispersion-free drifts, transition energy above extraction energy, superperiodicity, bounded beta functions, and separate-function magnets. We also discuss how chromaticity correction and matching can be achieved by using harmonically interleaved sextupoles. We present an 8-GeV ring scenario and a 22-GeV ring scenario. This study is a first step towards a more comprehensive proposal for the Proton Improvement Plan III, which will incorporate full particle tracking, a phase-painting particle injection scheme, detailed magnet design, and more thorough optimization.

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Primary author

Dr. Jeffrey Eldred (Fermilab)

Co-author

Dr. Alexander Valishev (Fermilab)

Presentation Materials

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