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@inproceedings{formela:ipac2021-tupab026,
author = {M. Formela and K. Flöttmann and N. Hamann and G.A. Moortgat-Pick and S. Riemann},
title = {{Application of Plasma Lenses as Optical Matching Device for Positron Sources at Linear Colliders}},
booktitle = {Proc. IPAC'21},
pages = {1394--1396},
eid = {TUPAB026},
language = {english},
keywords = {plasma, positron, simulation, target, optical-matching},
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-TUPAB026},
url = {https://jacow.org/ipac2021/papers/tupab026.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB026},
abstract = {{In the baseline design of the International Linear Collider (ILC) an undulator-based positron source is foreseen. The proposed luminosity of the recently chosen first energy stage with √{s}=250 GeV requires an improvement by a factor of 2500 to the world’s first linear collider, the past SLC experiment. This ambitious luminosity goal can only be achieved, if all technological boundaries are being pushed. One such area is the captured positron number, which is primarily determined in the capture section within the positron source and specifically by its optical matching device. It is responsible for transforming the phase-space of the outgoing particles produced in the target for the succeeding accelerator sections. The plasma lens is a new candidate for this task. It being an especially adequate method due its magnetic field being azimuthal. Optimizing an idealised tapered active plasma lens for the ILC led us to a design with improved captured positron yield, outperforming ILC’s currently proposed quarter wave transformer by approximately 50%. The captured yield also proved to be stable within ±1.5% for deviations in design parameters of ±10%.}},
}