LinkedIn

 آمار

تعداد نشریات20
تعداد شماره‌ها1,149
تعداد مقالات10,518
تعداد مشاهده مقاله45,415,470
تعداد دریافت فایل اصل مقاله11,291,245
Pawiro, S A, Azzi, A, Soejoko, D S. (1399). A Monte Carlo Study of Photon Beam Characteristics on Various Linear Accelerator Filters. سامانه مدیریت نشریات علمی, 10(5), 613-622. doi: 10.31661/jbpe.v0i0.1192
S A Pawiro; A Azzi; D S Soejoko. "A Monte Carlo Study of Photon Beam Characteristics on Various Linear Accelerator Filters". سامانه مدیریت نشریات علمی, 10, 5, 1399, 613-622. doi: 10.31661/jbpe.v0i0.1192
Pawiro, S A, Azzi, A, Soejoko, D S. (1399). 'A Monte Carlo Study of Photon Beam Characteristics on Various Linear Accelerator Filters', سامانه مدیریت نشریات علمی, 10(5), pp. 613-622. doi: 10.31661/jbpe.v0i0.1192
Pawiro, S A, Azzi, A, Soejoko, D S. A Monte Carlo Study of Photon Beam Characteristics on Various Linear Accelerator Filters. سامانه مدیریت نشریات علمی, 1399; 10(5): 613-622. doi: 10.31661/jbpe.v0i0.1192

A Monte Carlo Study of Photon Beam Characteristics on Various Linear Accelerator Filters

Journal of Biomedical Physics and Engineering
مقاله 11، دوره 10، شماره 5، دی 2020، صفحه 613-622    اصل مقاله (1.35 M)
نوع مقاله: Original Research
شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.1192
نویسندگان
S A Pawiro* 1؛ A Azzi2؛ D S Soejoko1
1PhD, Department of Physics, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok, Indonesia
2MSc, Department of Physics, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok, Indonesia
چکیده
Background: Intensity Modulated Radiation Therapy (IMRT) technique is an advanced method of radiotherapy leading into the development of Flattening Filter-Free (FFF) medical linear accelerators (Linacs). Monte Carlo simulation has been a standard method for calculation of particle transport due to precise geometry and material specifications.
Objective: This study is to obtain the design optimization of Flattening Filter Free (FFF) for 6 MV Linac machine.
Material and Methods: In this simulating study, EGSnrc user code was used to simulate particles emitted from head of linac 6MV Varian to achieve the most suitable filter in FFF linac design. Monte Carlo simulation results of the PDD and profile, on the 10 × 10 cm2 field, were compared with the measurements. Differences in small profile beams from Monte Carlo simulation were also evaluated between FF and FFF linac.
Results: The spectrum on Monte Carlo simulation in isocenter was compared with Treatment Planning System (TPS) for each filter variation. The slight differences of average spectrum are simulated using 2 mm copper filter and FakeBeam with -1.52 ± 3.82% and -3.13 ± 3.61%. Whereas, for PDD and profiles, each variation has an average difference of 7.10 ± 0.70% and -5.99 ± 1.39%.
Conclusion: FakeBeam filter is a proper filter for the use of linac design 6MV Varian. It is necessary to decrease the kinetic energy of electrons to perform MC simulations on FFF linac.
کلیدواژه‌ها
FFF Linac؛ Filter Design؛ Radiotherapy؛ Particle Accelerators؛ Radiation
سایر فایل های مرتبط با مقاله
مراجع
  1. Pichandi A, Ganesh KM, Jerin A, Balaji K, Kilara G. Analysis of physical parameters and determination of inflection point for Flattening Filter Free beams in medical linear accelerator. Rep Pract Oncol Radiother. 2014;19:322-31. doi: 10.1016/j.rpor.2014.01.004. PubMed PMID: 25184057. PubMed PMCID: PMCPMC4150098.
  2. Ponisch F, Titt U, Vassiliev ON, Kry SF, Mohan R. Properties of unflattened photon beams shaped by a multileaf collimator. Med Phys. 2006;33:1738-46. doi: 10.1118/1.2201149. PubMed PMID: 16872081.
  3. Anonymous. Monte Carlo data package for High Energy Accelerator: document number 100040466. USA: Varian Medical System; 2003.
  4. Xiao Y, Kry SF, Popple R, Yorke E, Papanikolaou N, Stathakis S, et al. Flattening filter-free accelerators: a report from the AAPM Therapy Emerging Technology Assessment Work Group. J Appl Clin Med Phys. 2015;16:5219. doi: 10.1120/jacmp.v16i3.5219. PubMed PMID: 26103482. PubMed PMCID: PMCPMC5690108.
  5. Rodriguez M, Sempau J, Fogliata A, Cozzi L, Sauerwein W, Brualla L. A geometrical model for the Monte Carlo simulation of the TrueBeam linac. Phys Med Biol. 2015;60:N219-29. doi: 10.1088/0031-9155/60/11/N219. PubMed PMID: 25984796.
  6. Tsiamas P, Sajo E, Cifter F, Theodorou K, Kappas C, Makrigiorgos M, et al. Beam quality and dose perturbation of 6 MV flattening-filter-free linac. Phys Med. 2014;30:47-56. doi: 10.1016/j.ejmp.2013.02.004. PubMed PMID: 23517668.
  7. Sangeetha S, Sureka C. Comparison of Flattening Filter (FF) and Flattening-Filter-Free (FFF) 6 MV photon beam characteristics for small field dosimetry using EGSnrc Monte Carlo code. Radiation Physics and Chemistry. 2017;135:63-75. doi: 10.1016/j.radphyschem.2017.02.029.
  8. Lechner W, Palmans H, Solkner L, Grochowska P, Georg D. Detector comparison for small field output factor measurements in flattening filter free photon beams. Radiother Oncol. 2013;109:356-60. doi: 10.1016/j.radonc.2013.10.022. PubMed PMID: 24257020.
  9. Lechner W, Wesolowska P, Azangwe G, Arib M, Alves VGL, Suming L, et al. A multinational audit of small field output factors calculated by treatment planning systems used in radiotherapy. Physics and Imaging in Radiation Oncology. 2018;5:58-63. doi: 10.1016/j.phro.2018.02.005.
  10. Tyler MK, Liu PZ, Lee C, McKenzie DR, Suchowerska N. Small field detector correction factors: effects of the flattening filter for Elekta and Varian linear accelerators. J Appl Clin Med Phys. 2016;17:223-35. doi: 10.1120/jacmp.v17i3.6059. PubMed PMID: 27167280. PubMed PMCID: PMCPMC5690940.
  11. Masanga W, Tangboonduangjit P, Khamfongkhruea C, Tannanonta C. Determination of small field output factors in 6 and 10 MV flattening filter free photon beams using various detectors. Journal of Physics: Conference Series. 2016;698:012027. doi: 10.1088/1742-6596/694/1/012027.
  12. Kragl G, Af Wetterstedt S, Knausl B, Lind M, McCavana P, Knoos T, et al. Dosimetric characteristics of 6 and 10MV unflattened photon beams. Radiother Oncol. 2009;93:141-6. doi: 10.1016/j.radonc.2009.06.008. PubMed PMID: 19592123.
  13. IAEA. Commissioning and quality assurance of computerized planning systems for radiation treatment of cancer. Vienna: TRS Report Number 430; 2004.
آمار
تعداد مشاهده مقاله: 1,669
تعداد دریافت فایل اصل مقاله: 905


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب