HIAT2022 - List of Keywords (ISAC)

Paper	Title	Other Keywords	Page
TUP19	First Tests of Model-Based Linac Phasing in ISAC-II	cavity, linac, controls, solenoid	113
	S. Kiy, R.A. Baartman, O.K. Kester, O. Shelbaya TRIUMF, Vancouver, Canada
	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.
	Poster TUP19 [0.355 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2022-TUP19
About •	Received ※ 26 June 2022 — Revised ※ 01 July 2022 — Accepted ※ 10 August 2022 — Issue date ※ 29 September 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUP19

First Tests of Model-Based Linac Phasing in ISAC-II

cavity, linac, controls, solenoid

113

S. Kiy, R.A. Baartman, O.K. Kester, O. Shelbaya
TRIUMF, Vancouver, Canada

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.

Poster TUP19 [0.355 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2022-TUP19

About •

Received ※ 26 June 2022 — Revised ※ 01 July 2022 — Accepted ※ 10 August 2022 — Issue date ※ 29 September 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)