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@inproceedings{hounsell:ipac2021-thpab106,
author = {B. Hounsell and S.A. Bogacz and C. Bruni and W. Kaabi and M. Klein and B.L. Militsyn and C.P. Welsch},
% author = {B. Hounsell and S.A. Bogacz and C. Bruni and W. Kaabi and M. Klein and B.L. Militsyn and others},
% author = {B. Hounsell and others},
title = {{Optimization of a High Bunch Charge ERL Injection Merger for PERLE}},
booktitle = {Proc. IPAC'21},
pages = {3983--3986},
eid = {THPAB106},
language = {english},
keywords = {emittance, linac, space-charge, booster, cavity},
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-THPAB106},
url = {https://jacow.org/ipac2021/papers/thpab106.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-THPAB106},
abstract = {{Delivery of high charge electron bunches into the main loop of an ERL (energy recovery linac) while preserving the emittance is challenging. This is because at the typical injection momentum, space charge forces still have a significant effect on the beam dynamics. In this work we consider the design of the merger for PERLE, an ERL test facility to be based at IJCLab in France. Previous simulations have shown that the baseline DC gun based injector can achieve the required emittance at the booster linac exit. The quality of the 500 pC bunches must then be preserved with space charge through the merger at total beam energy of 7 MeV keeping the emittance below 6 mm mrad. The beam dynamics in the merger were simulated using the code OPAL and optimised using a genetic algorithm. Three possible merger schemes were investigated. The goal of the optimisation was to minimise the emittance growth while also achieving the required Twiss parameters to match onto the spreader at the main linac exit. A three dipole solution is then examined in more detail.}},
}