2015/03/10 by Yongkeun Song, Jaeik Shin, Song, Yongkeun +20
Medicine · Physics and Astronomy · #Advanced Radiotherapy Techniques #Effects of Radiation Exposure #FOS: Physical sciences #Medical Physics (physics.med-ph) #Radiation Therapy and Dosimetry #physics.med-ph
paper · pdf · doi:10.48550/arxiv.1503.02800
13 pages, 7 figures
arxiv created 2015/03/10 · openalex publication_date 2015/03/10 · arxiv updated 2015/03/11 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28
We investigated the parameter optimization of ridge filter thickness using a Monte Carlo simulation for carbon ion therapy. For this study, a ridge filter was designed for the Spread-Out Bragg Peak (SOBP) by considering the relative biological effect (RBE). The thickness, height, and width of the ridge filter were designed by using the FLUKA and GEANT4 code, and we analyzed and compared the results of the physical dose distribution for the FLUKA and GEANT4 coding. The results show that the minimum width of the groove for the ridge filter should be at least 0.4cm for the appropriate biological dose. The SOBP sections are 8cm, 9cm, and 10cm, respectively, when heights are 3.5cm, 4.0cm, and 4.5cm. The height of the ridge filter is designed to be associated with the SOBP width. Also, the results for the FLUKA and GEANT4 code show that an average value of difference is 3% and a maximum error is 5%; however, its trend was similar. Therefore, the height and width of the groove for the ridge filter are used for important parameters to decide the length and plateau of SOBP.