JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{kiy:hiat2022-tup19,
author = {S. Kiy and R.A. Baartman and O.K. Kester and O. Shelbaya},
title = {{First Tests of Model-Based Linac Phasing in ISAC-II}},
booktitle = {Proc. HIAT'22},
% booktitle = {Proc. 15th International Conference on Heavy Ion Accelerator Technology (HIAT'22)},
pages = {113--117},
eid = {TUP19},
language = {english},
keywords = {cavity, linac, ISAC, controls, solenoid},
venue = {Darmstadt, Germany},
series = {International Conference on Heavy Ion Accelerator Technology},
number = {15},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2022},
issn = {2673-5547},
isbn = {978-3-95450-240-0},
doi = {10.18429/JACoW-HIAT2022-TUP19},
url = {https://jacow.org/hiat2022/papers/tup19.pdf},
abstract = {{As the e-linac and ARIEL facilities at TRIUMF progress, the impending complexity of operating three simultaneous rare ion beams (RIBs) approaches. To help prepare for this, a framework for the development of High Level Applications has been constucted, upon which multiple avenues for improvement towards model-based and automated tuning are being pursued. Along one of these avenues, the 40-cavity superconducting ISAC-II heavy ion linac has been studied and modelled in the envelope code transoptr. This has allowed for real-time integration through the on-axis fields, fitting focal strengths of solenoids to achieve desired beam waists, and calculation of necessary cavity phases to achieve a desired output energy for given input beam parameters. Initial tests have been completed, successfully phasing up to 37 cavities using the transoptr model and achieving a final output energy within 1% of the expected while maintaining nominal (>90%) transmission. A summary of the calibration of the model to the machine is given, followed by results of the phasing tests and an outlook towards future improvements.}},
}