Author: Prokopovich, D.A.
Paper Title Page
MOPAB181 Non-Delivery Time Reduction at MedAustron 613
 
  • L. Adler, S. Danzinger, F. Farinon, F. Feichtinger, G. Guidoboni, N. Kahn, C. Kurfürst, D.A. Prokopovich, A. Wastl
    EBG MedAustron, Wr. Neustadt, Austria
  • L.C. Penescu
    Abstract Landscapes, Montpellier, France
  
  Funding: Funding by the NÖ WIRTSCHAFTS- UND TOURISMUSFONDS under grant number WST3-F-5033232/001-2020.
MedAus­tron is a can­cer treat­ment cen­ter in Aus­tria pro­vid­ing pro­ton and car­bon ion beams to three clin­i­cal and one non-clin­i­cal re­search beam lines. The slow ex­trac­tion of par­ti­cles from the syn­chro­tron fol­lows a third order res­o­nance ex­trac­tion scheme. Cur­rently, for every change of ex­trac­tion en­ergy a new spill needs to be gen­er­ated. Be­sides the beam-on time of the par­ti­cle de­liv­ery, every spill is also com­prised of non-de­liv­ery time com­po­nents e.g. the mul­ti­turn in­jec­tion, ac­cel­er­a­tion or mag­net con­di­tion­ing. For small tumor tar­get vol­umes, this non-de­liv­ery time is the major con­tri­bu­tion to the over­all treat­ment time. A ded­i­cated per­for­mance im­prove­ment pro­ject (sup­ported with a grant from the state of lower Aus­tria) was ex­e­cuted with the goal to re­duce these non-de­liv­ery times with­out af­fect­ing im­por­tant clin­i­cal beam pa­ra­me­ters such as the beam size or pen­e­tra­tion depth. The im­ple­mented re­duc­tion of the non-de­liv­ery time >50% could be achieved, re­sult­ing in beam-on time re­duc­tions for ref­er­ence treat­ment plans be­tween 25% (largest pro­ton PTV) and 58% (small­est car­bon PTV). Re­sults of com­mis­sion­ing ef­forts, tech­ni­cal de­tails and the achieved op­ti­miza­tions will be pre­sented. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB181  
About • paper received ※ 14 May 2021       paper accepted ※ 28 May 2021       issue date ※ 25 August 2021  
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