Extraction methods for the MedAustron Synchrotron / von Gregor Feldbauer
VerfasserFeldbauer, Gregor
Begutachter / BegutachterinBenedikt, Michael
Umfang127 S. : Ill., zahlr. graph. Darst.
HochschulschriftWien, Techn. Univ., Dipl.-Arb., 2011
Schlagwörter (DE)MedAustron / CERN / Synchrotron / Beschleuniger / Extraktion / Hadronentherapie
Schlagwörter (EN)MedAustron / CERN / Synchrotron / Accelerator / Extraction / Hadron-therapy
URNurn:nbn:at:at-ubtuw:1-43044 Persistent Identifier (URN)
 Das Werk ist frei verfügbar
Extraction methods for the MedAustron Synchrotron [11.53 mb]
Zusammenfassung (Englisch)

Synchrotron-based cancer treatment facilities use resonant extraction mechanisms in order to extract light hadrons (protons, carbon ions) with a kinetic energy of a few hundred MeV per nucleon over a few seconds.

This thesis makes a comparative study of extraction methods in the context of the MedAustron facility, which is currently in its final design stage. The work focuses mainly on the chosen base-line extraction mechanism - the betatron-core driven, third-order resonance extraction scheme - but also includes the first feasibility studies of RF-Knockout extraction, Stochastic RF-Noise extraction and extraction via a quadrupole-induced tune-shift, using MedAustron parameters.

Furthermore, long term precision requirements on the power converter stability of the magnets in the synchrotron and the high energy beam transfer lines have been defined to ensure the clinically required long term beam energy, size and position stability.

Potential problems with low-energy protons concerning the precision requirements and with the capacity of the betatron-core are flagged.