Implementation of Sphinx/Lynx as daily QA equipment for scanned proton and carbon ion beams

被引：6
作者：
Grevillot, Loic [1 ,6 ]
Moreno, Jhonnatan Osorio [1 ]
Fuchs, Hermann [1 ,2 ,3 ]
Dreindl, Ralf [1 ]
Elia, Alessio [1 ]
Bolsa-Ferruz, Marta [1 ]
Stock, Markus [1 ,4 ]
Palmans, Hugo [1 ,5 ]
机构：
[1] MedAustron Ion Therapy Ctr, Wiener Neustadt, Austria
[2] Med Univ Vienna, Christian Doppler Lab Med Radiat Res Radiat Oncol, Wiener Neustadt, Austria
[3] Med Univ Vienna, AKH Vienna, Dept Radiat Oncol, Wiener Neustadt, Austria
[4] Karl Landsteiner Univ Hlth Sci, Dept Oncol, Wiener Neustadt, Austria
[5] Natl Phys Lab, Teddington, England
[6] MedAustron Ion Therapy Ctr, Marie Curie Str 5, A-2700 Wiener Neustadt, Austria
来源：
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS | 2023年 / 24卷 / 04期
关键词：
carbon ion; ion beam; proton; QA; radiation therapy; DAILY QUALITY-ASSURANCE; DOSIMETRY; THERAPY; DELIVERY;
D O I：
10.1002/acm2.13896
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
PurposeReporting on the first implementation of a proton dedicated commercial device (IBA Sphinx/Lynx) for daily Quality Assurance (QA) of scanned proton and carbon ion beams. MethodsDaily QA trendlines over more than 3 years for protons and more than 2 years for carbon ions have been acquired. Key daily QA parameters were reviewed, namely the spot size and position, beam range, Bragg peak width, coincidence (between beam and imaging system isocenters), homogeneity and dose. ResultsThe performance of the QA equipment for protons and carbon ions was evaluated. Daily QA trendlines allowed us to detect machine performance drifts and changes. The definition of tolerances and action levels is provided and compared with levels used in the literature. ConclusionThe device has been successfully implemented for routine daily QA activities in a dual particle therapy facility for more than 2 years. It improved the efficiency of daily QA and provides a comprehensive QA process.
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页数：13
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