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@inproceedings{kallestrup:ipac2021-mopab021,
author = {J. Kallestrup and M. Aiba and N. Carmignani and T.P. Perron},
title = {{A Dispersive Quadrupole Scan Technique for Transverse Beam Characterization}},
booktitle = {Proc. IPAC'21},
pages = {107--110},
eid = {MOPAB021},
language = {english},
keywords = {quadrupole, SRF, emittance, optics, booster},
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-MOPAB021},
url = {https://jacow.org/ipac2021/papers/mopab021.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-MOPAB021},
abstract = {{Quadrupole scans are one of the standard techniques to characterize the transverse beam properties in transfer lines or linacs. However, in the presence of dispersion the usage of regular quadrupole scans will lead to erroneous estimates of the beam parameters. The standard solution to this problem is to measure the dispersion and then subtract it in the post-analysis of the quadrupole scan measurements assuming the design energy spread. Here we show that the dispersive contribution to the beam size can be included in the quadrupole scan procedure, forming a linear system of equations that can be solved to obtain both the betatronic and dispersive beam parameters. The method is tested at both the SLS and ESRF booster-to-ring transfer lines leading to reasonable estimates of the beam parameters.}},
}