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@inproceedings{lyalin:ipac2021-tupab311,
author = {M.A. Lyalin and I. Koop and D.B. Shwartz},
title = {{Nonlinear Correctors Tuning for the Collector Ring Isochronous Mode}},
booktitle = {Proc. IPAC'21},
pages = {2218--2220},
eid = {TUPAB311},
language = {english},
keywords = {sextupole, betatron, optics, controls, proton},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-TUPAB311},
url = {https://jacow.org/ipac2021/papers/tupab311.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB311},
abstract = {{One of the operating modes for the Collector Ring (CR) under construction in Darmstadt is the isochronous mode, in which the captured ions circulate with an equal period regardless of their momentum. The measurement of the orbital period T by the time-of-flight sensors makes it possible to precisely determine the mass to the charge ratio of the ion under study. For this, the change of the circulation period dT should not exceed 1·10⁻⁶ for dT/T in the entire momentum acceptance of the 0.62%. Modeling in the Strategic Accelerator Design code showed that without nonlinear effects compensation, the orbital period variation is 1·10⁻⁵. In this work, the parameters of nonlinear correctors, which are sextupoles and octupoles in CR, are determined, necessary for the isochronous mode implementation.}},
}