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@INPROCEEDINGS{Niedermayer:361079,
author = {Niedermayer, Philipp and Singh, Rahul and Bräuning, Harald
and Milosic, Timo},
title = {{S}pill {O}ptimization {S}ystem {I}mproving {S}low
{E}xtraction at {GSI}},
address = {Geneva, Switzerland},
publisher = {JACoW Publishing},
reportid = {GSI-2025-00953},
isbn = {978-3-95450-248-6},
pages = {956-959 pages},
year = {2025},
note = {Published by JACoW Publishing under the terms of the
Creative Commons Attribution 4.0 license.},
abstract = {Resonant slow extraction is routinely used to provide ion
beams to various users.At GSI SIS18, two extraction methods
are implemented: quadrupole-driven and radio frequency Knock
Out (RF-KO) extraction.In either case, delivering a defined
beam intensity (spill) without fluctuations or drifts is
desired for an efficient beam usage.The Spill Optimization
System (SOS) was developed to address this demand and
improve the spill quality based on online spill
monitoring.Developed using software-defined radio
technology, it comprises a feedback controlling the spill
rate and an optimization algorithm to improve the spill
quality.In the case of RF-KO extraction, it controls the
spill by generating tailored excitation signals for the KO
exciter.For quadrupole-driven extraction, it produces a
control signal for the tune ramp including tune wobbling to
improve the spill quality.This contribution gives an
overview on the systems and compares different usage
scenarios.},
month = {Jun},
date = {2025-06-01},
organization = {16th International Particle
Accelerator Conference, Taipei
(Taiwan), 1 Jun 2025 - 6 Jun 2025},
keywords = {Accelerator Physics (Other) / mc4-hadron-accelerators -
MC4: Hadron Accelerators (Other) / MC4.T12 - MC4.T12 Beam
Injection/Extraction and Transport (Other)},
cin = {BEA / ACCpub},
cid = {I:(DE-Ds200)BEA-20051214OR061 /
I:(DE-Ds200)ACC-20241129publications},
pnm = {621 - Accelerator Research and Development (POF4-621)},
pid = {G:(DE-HGF)POF4-621},
experiment = {$EXP:(DE-Ds200)Experiment_without_proposal_number-20200803$},
typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
doi = {10.18429/JACoW-IPAC2025-TUPB008},
url = {https://repository.gsi.de/record/361079},
}