Verifikasi Dosis Radiasi Berkas Foton 6 MV pada LINAC CLINAX CX Menggunakan Detektor Bilik Ionisasi di RSP Universitas Andalas

Authors

  • Luthfia Aqila Abrar Universitas Andalas
  • Dian Milvita Universitas Andalas
  • Heru Prasetio Pusat Riset Teknologi Keselamatan, Metrologi, dan Mutu Nuklir, BRIN
  • Fiqi Diyona Instalasi Radioterapi Rumah Sakit Pendidikan Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.12.1.82-87.2023

Keywords:

dosis radiasi, foton, luas lapangan, slab fantom, verifikasi

Abstract

Telah dilakukan verifikasi dosis radiasi berkas foton 6 MV menggunakan detektor bilik ionisasi pada LINAC tipe CLINAX CX di RSP Universitas Andalas. Penelitian tersebut bertujuan untuk mengetahui dosis radiasi pada tiap variasi luas lapangan penyinaran serta menverifikasikan antara dosis radiasi pada Treatment Planning System (TPS) dengan dosis radiasi yang terukur. Penelitian diawali dengan pengukuran dosis radiasi pada slab fantom dengan kedalaman 10 cm dan variasi luas lapangan berbentuk persegi dan persegi panjang yang seluas (5x5) cm, (10x10) cm, (15x15) cm, (30x30) cm, (5x10) cm, (10x5) cm, (5x15) cm, dan (15x5) cm. Nilai dosis radiasi dihitung berdasarkan protokol TRS No.398 IAEA Selanjutnya dilakukan verifikasi dosis radiasi dengan membandingkan dosis radiasi pada TPS dengan dosis radiasi yang terukur pada batas toleransi yang ditetapkan oleh TRS No.398 IAEA yaitu ±2%. Hasil penelitian menunjukkan bahwa semakin besar luas lapangan penyinaran, maka semakin kecil dosis radiasi yang didapatkan. Hasil verifikasi dosis radiasi pada TPS dengan dosis radiasi terukur masih memenuhi batas toleransi yang ditetapkan oleh protokol TRS No.398 IAEA yaitu 0,076% hingga 0,584%.

References

Hadi, B.S.W. and Milvita, D. (2018), “Verifikasi Luas Lapangan Radiasi penyinaran Linac Tipe Clinac CX Terintegrasi Electronic Portal Imaging Device (EPID) Menggunakan Teknik IMRT Di RSP Universitas Andalasâ€, Jurnal Fisika Unand, Vol. 7 No. 4, pp. 334–338.

IAEA. (2000), Absorbed Dose Determination in External Beam Radiotherapy, Technical Reports Series 398, IAEA, IAEA, Vienna.

Podgorsak, E.. (2005), Review of Radiation Oncology Physics: A Handbook for Teachers and Students, IAEA, Vol. 5, IAEA, Vienna, available at:https://doi.org/10.1120/jacmp.2021.25315.

Ramona, F., Milvita, D. and Diyona, F. (2020), “Verifikasi Nilai Dosis Radiasi Berkas Elektron Pesawat LINAC dengan Luas Lapangan Blok Cerrobend (6×6) cm2 dan (8×8) cm2 Berdasarkan Protokol IAEA TRS 398â€, Jurnal Fisika Unand, Vol. 9 No. 2, pp. 238–243.

Susworo, R. (2007), Dasar-Dasar Radioterapi, UI Press, Jakarta.

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Published

2022-12-25

How to Cite

Abrar, L. A., Milvita, D., Prasetio, H., & Diyona, F. (2022). Verifikasi Dosis Radiasi Berkas Foton 6 MV pada LINAC CLINAX CX Menggunakan Detektor Bilik Ionisasi di RSP Universitas Andalas. Jurnal Fisika Unand, 12(1), 83–88. https://doi.org/10.25077/jfu.12.1.82-87.2023

Issue

Vol. 12 No. 1 (2023)

Section

Articles

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