Measuring and Determining the Output Factor of 6 and 10 MV WFF Photon Beams in Small Square and Rectangular Fields using Semiflex TM 31010 and Pintpoint TM 31014 Ionization Chamber
DOI:
10.29303/jppipa.v8i6.2364Published:
2022-12-30Issue:
Vol. 8 No. 6 (2022): DecemberKeywords:
Output Factor, Small field, Square field, Rectangular fieldResearch Articles
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Abstract
Research has been carried out on Measuring and Determining the Output Factors of 6 and 10 MV WFF photon beams in Small Square and Rectangular fields using Semiflex TM 31010 and PintPoint TM 31014 Ionization Chamber. This study aims to determine the value of the small field output factor. Measurements were carried out in a water phantom at a depth of 10 cm with a 100 cm SSD technique. The area of ​​the irradiation field used is (2 × 2; 3 × 3; 4 × 4; 2.5 × 1.6; 3.6 × 2.5; 4.5 × 2; and 5 × 3.2) cm2. Field output factor calculations were performed using the IAEA TRS. 483 dosimetry protocol. The results of measurements and calculations obtained for the two detectors used show that a decrease in the value of the output factor occurs when the field size is getting smaller. The output factor value in a small rectangular field looks smaller when compared to the output factor value in a small square field.
References
Andreo, P. (2018). The physics of small megavoltage photon beam dosimetry. Radiotherapy and Oncology, 126(2), 205–213. https://doi.org/10.1016/j.radonc.2017.11.001
Bagheri, H., Soleimani, A., Charehaghaji, N., Mesbahi, A., Manouchehri, F., Shekarehi, B., Dormanesh, B., & Dadgar, H. A. (2017). An overview on small‑field dosimetry in photon beam radiotherapy: Developments and challenges. Journal of Cancer Research and Therapeutics, 13(2), 175–185. https://doi.org/10.4103/0973-1482.199444
Bogdanich, W., & Ruiz, R. R. (2010). Missouri Hospital Reports Errors in Radiation Doses - The New York Times. New York Times, 1. Retrieved from https://www.nytimes.com/2010/02/25/us/25radiation.html
BozÌŒidar, C. (2019). Experimental determination of field output factors and detector specific output correction factors in small fields of megavoltage radiotherapy beams [University of Zagreb]. https://urn.nsk.hr/urn:nbn:hr:217:291919
Casar, B., Gershkevitsh, E., Mendez, I., Jurković, S., & Huq, M. S. (2019). A novel method for the determination of field output factors and output correction factors for small static fields for six diodes and a microdiamond detector in megavoltage photon beams. Medical Physics, 46(2), 944–963. https://doi.org/10.1002/mp.13318
Das, I. J., Morales, J., & Francescon, P. (2018). Small field dosimetry : What have we learnt ? Small Field Dosimetry : What Have We Learnt ? Medical Physics, 060001(June 2016), 11. https://doi.org/10.1063/1.4954111
Fatimah, A. L. N., Handika, A. D., Wibowo, W. E., & Pawiro, S. A. (2016). Pengaruh Kedalaman Pada Output Factor Lapangan Kecil Dengan Detektor Thermoluminesense Dosimeter Rods Dan Ionization Chamber Exradin A16. Prosiding Seminar Nasional Fisika, V, 7–12. https://doi.org/doi.org/10.21009/0305020302
Firmansyah, A. F. (2018). Penentuan Laju Dosis Serap Air Berkas Foton 6 MV. Seminar Nasional SDM Teknologi Nuklir Yogyakarta 209–214. Retrieved from https://inis.iaea.org/collection/NCLCollectionStore/_Public/50/062/50062866.pdf
Firmansyah, A. F., Sunaryati, S. I., Rajagukguk, N., & Wurdiyanto, G. (2017). DAN ASPEK KESELAMATANNYA Seminar Keselamatan Nuklir. 238–242. Retrieved from http://jfu.fmipa.unand.ac.id/index.php/jfu/article/viewFile/711/566
Godson, H. F., Ravikumar, M., Sathiyan, S., Ganesh, K. M., Retna Ponmalar, Y., & Varatharaj, C. (2016). Analysis of small field percent depth dose and profiles: Comparison of measurements with various detectors and effects of detector orientation with different jaw settings. Journal of Medical Physics, 41(1), 12–20. https://doi.org/10.4103/0971-6203.177284
Hug, M. S., Hwang, M.-S., Teo, P. T., Jang, S. Y., Heron, D. E., & Lalonde, R. (2018). A dosimetric evaluation of the IAEA-AAPM TRS 483 code of practice for dosimetry of small static fields used in conventional Linac beam and comparison with IAEA TRS 398, AAPM TG51 Addendum protocols. 69. https://doi.org/10.1002/mp.13092
IAEA. (2010). International Symposium on Standards, Applications and Quality Assurance in Medical Radiation Dosimetry (IDOS) (BOOK OF EX, Issue November). IAEA-CN-182.
IAEA. (2017). Dosimetry of Small Static Fields Used in External Radiotherapy An International Code of Practice for Reference and Relative Dose Determination. IAEA.
Lauba, W. U., & Wong, T. (2003). The volume effect of detectors in the dosimetry of small fields used in IMRT. Medical Physics, 30(3), 341–347. https://doi.org/10.1118/1.1544678
Nabilla, A., Milvita, D., & Mursiyatun. (2020). Analisis Perbandingan Dosis Keluaran Berkas Radiasi Pesawat Co-60 Merek Theratron Phoenix Dari Perubahan Nilai Panjang Dan Lebar Persegi Panjang Pada Luas Lapangan Yang Sama. Prosiding SNFA (Seminar Nasional Fisika Dan Aplikasinya), 5, 25–34. https://doi.org/10.20961/prosidingsnfa.v5i0.46589
Nasir, M. K. R., Amjad, N., Razzaq, A., & Siddique, T. (2017). Measurement and Analysis of PDDs Profile and Output Factors for Small Field Sizes by cc13 and Micro-Chamber cc01. International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, 06(01), 36–56. https://doi.org/10.4236/ijmpcero.2017.61005
Parwaie, W., Refahi, S., Ardekani, M. A., & Farhood, B. (2018). Different dosimeters/detectors used in small-field dosimetry: Pros and cons. Journal of Medical Signals and Sensors, 8(3), 195–203. https://doi.org/10.4103/jmss.JMSS-3-18
Setilo, I., Oderinde, O. M., & Plessis, F. C. Du. (2019). The effect of SSD, Field size, Energy and Detector type for Relative Output Factor measurement in small photon beams as compared with Monte Carlo simulation. Polish Journal of Medical Physics and Engineering, 25(2), 101–110. https://doi.org/10.2478/pjmpe-2019-0014
Author Biographies
Margaretha Berek, Brawijaya University
Johan Andoyo Effendi Noor, Departement of physic, Brawijaya University, Malang, Indonesia
Unggul Pundjung Juswono, Departement of physic, Brawijaya University, Malang, Indonesia
Fatimah Kunti Hentihu, Departement of Radiotherapy, Lavalette Hospital, Malang, Indonesia
Alfian Khoiri Anto, Departement of Radiotherapy, Lavalette Hospital, Malang, Indonesia
Sigma Nur Rismawati, 8Master of Physics Study Program, Brawijaya University, Malang, Indonesia
Ayu Hardianti Pratiwi, Master of Physics Study Program, Brawijaya University, Malang, Indonesia
Karimah Karimah, Master of Physics Study Program, Brawijaya University, Malang, Indonesia
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Copyright (c) 2022 Margaretha Berek, Johan Andoyo Effendi Noor, Unggul Pundjung Juswono, Fatima Kunti Hentihu, Alfian Khoiri Anto, Sigma Nur Rismawati, Ayu Hardianti Pratiwi, Karimah Karimah
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