Analisis Dosis Keluaran Berkas Sinar-X Pesawat Linac Varian Clinac CX Berdasarkan Protokol Dosimetri IAEA TRS 398
DOI:
https://doi.org/10.29408/kpj.v6i2.6327Keywords:
Radiotherapy, Linac, X-ray, TRS 398 IAEA, Output DoseAbstract
Research has been conducted on the Analysis of the X-ray beam output of the Linac varian Clinac CX based on the TRS 398 IAEA. This analysis aims to determine the condition of Linac in Bali Mandara Hospital with reference to the value of 1 cGy equal to 1 MU obtained from the analysis of the ionization chamber, temperature, pressure, polarity effect and ion recombination. The research was conducted with variations of X-ray energy 6 MV and 10 MV. The size of the irradiation field used is (10 x 10) cm with a Source to Surface Distance (SSD) of 100 cm. Based on the results of absolute measurements of the output dose of the Linac Varian Clinac CX X-ray beam at the Radiation Oncology Sub-Installation of the Bali Mandara Hospital with two variations of energy used, the output dose value at 6 MV energy is 1,00138 ???/?? and at 10 MV energy 0,99456 ???/?? with a large deviation of 0,138 % and 0,544 %, respectively, with the obtained deviation meeting the TRS 398 IAEA tolerance limit of ± 3%.
References
Alesini, D. (2016, Oktober 14). Linear Accelerators, The CERN accerator School. Retrieved from Budafest: https://indico.cern.ch/event/532397/contributions/2170633/attachments/1343755/2049275/Alesini_LINEAR_ACCELERATORS.pdf
Handoko, A., Hidayatullah, Hidayanto, E., & Richardina, V. (2018). Analisis keakuratan verifikasi dosis dengan menggunakan perbandingan phantom standar dan phantom replika. Youngster Physics Journal. Vol. 07, 1-10.
IAEA. (2000). Absorbed Dose Determination in External Beam Radiotherapy: An International Code of Practice for Dosimetry based on Standards of Absorbed Dose to Water. Vienna: Austria.
Khan, F. M. (2014). THE PHYSICS OF RADIATION THERAPY THIRD EDITION. New York: LIPPINCOTT WILLIAMS & WILKINS .
Paningaran, I. (2015). Analisis Dosis Output Sinar-X Pesawat Linear Accelerator (LINAC) Menggunakan Water Phantom. Skripsi. Universitas Hasanuddin.
Pipman, Y. (2017, April 7). Linear Accelerators For Radiothera: Part 2- Sub-Systems. Retrieved from ICTP School on Medical Physics for Radiation Therapy: https://indico.ictp.it/event/7955/session/2/contribution/18/material/slides/0.pdf
Puspitasari, R. A., Pertiwi, W. I., Sholihah, P. M., Fariqoh, W. H., Kavilani, N., & Astuti, S. D. (2020). Analisis Kualitas Berkas Radiasi LINAC Untuk Effektivitas Radioterapi. Jurnal Biosains Pascasarjana Vol. 22, 11-19.
Rahayu, I.I. (2015). Analisis Dosis Output Berkas Elektron Pesawat Teleterapi Linear Accelerator (Linac) Tipe Varian HCX 6540 Menggunakan TRS 398. Skripsi. Universitas Hasanuddin.
Satwika, L. G. P., Ratini, N. N., & Iffah, M. (2021). Pengaruh Variasi Tegangan Tabung Sinar-X terhadap Signal to Noise Ratio (SNR) dengan Penerapan Anode Heel Effect menggunakan Stepwedge. Buletin Fisika Vol, 22(1),20-28.
Setiawan, H., & Widita, R. (2016). Analisis Dosis Keluaran Berkas Foton dan Elektron Energi Tinggi Pesawat Linac Elekta Precise 5991 Berdasarkan Code of Practice IAEA TRS 398. Institut Teknologi Bandung (pp. 180-186). Bandung: Prosiding SKF 2016.
Suharmono, B. H., Anggraini, I. Y., Hilmaniyya, & Astuti, S. D. (2020). Quality Assurance (QA) Dan Quality Control (QC) Pada Instrumen Radioterapi Pesawat LINAC. Jurnal Biosains Pascasarjana Vol.22, 73-80.
Vadila, M. (2018). Analisis Keluaran Berkas Radiasi Pesawat Terapi Linac Tipe Varian CX 6264 Di RS UNAND. Skripsi. Universitas Andalas.
