17–22 May 2026
C.I.D
Europe/Zurich timezone

Measured properties of the mixed helium and carbon ion beam at MedAustron

TUP8004
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC8.U01: Health & Biology Poster session

Speaker

Mr Matthias Kausel (MedAustron)

Description

The implementation of a sequential injection scheme for mixing helium and carbon ions from different ion sources at the MedAustron accelerator facility enabled the first successful delivery of a mixed helium and carbon ion beam in a synchrotron therapy facility. Precise knowledge of both the helium and the carbon properties is an essential input for designing treatment monitoring experiments, however, it is not trivial to distinguish the helium and carbon beam properties within the mixed beam.

This contribution discusses the acquired beam properties delivered to the first treatment monitoring research experiments at MedAustron since late 2025. Most notably, the measurements demonstrate that beam compositions with 0-100 % helium content can be achieved. The mixed beam generation at MedAustron is still in an early stage, which is reflected in significant shot-to-shot fluctuations in the beam intensity and composition as well as differences in the transverse beam sizes of the extracted helium and carbon ions.

Funding Agency

Austrian Ministry of Education, Science, and Research; Gesellschaft für Forschungsförderung NÖ RTI-Strategy Lower Austria 2027 Grant No. FTI23-D-031

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Author

Mr Matthias Kausel (MedAustron)

Co-authors

Elisabeth Renner (TU Wien) Katrin Holzfeind (TU Wien) Claus Schmitzer (MedAustron)

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