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Journal : Journal of Physics and Its Applications

Comparison of Percentage Depth Doses with the Published Data for Co-60 Radiotherapy Machine at a Regional Cancer Hospital Ali, Javaid; Sohail, Muhammd; Samad, Abdul; Ahmad, Israr; Soomro, Hafeezullah; Biradar, Ghufran; Naz, Irum; Tariq, Imadullah
Journal of Physics and Its Applications Vol 6, No 1 (2023): November 2023
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v6i1.20537

Abstract

In external beam radiation therapy, the percentage depth dose (PDD) is a main factor for estimation of patient’s dose and dose distribution in target volume, therefore its accurate estimation is important. The purpose of this article is to compare PDDs with the published PDDs of different authors along central axis at different depths and field sizes for cobalt-60 (Co-60) radiotherapy machine at a regional cancer hospital Pakistan. A dedicated water phantom was used for estimation of PDDs at different depths and different field sizes, for Theratron phoenix Co-60 machine. It was observed that for 10×10 cm2 filed size of Co-60 beam mean percent variation in measured PDDs and published PDDs by different authors was -0.29% to 1.13%, which was within acceptable limit of ± 2%. However, for one author who used semi-empirical equation for PDDs calculation, the mean percent variation between measured PDDs and that of the author was -3.23%, 4.69% and 5.88% for 10×10 cm2, 25×25 cm2 and 30×30 cm2 field sizes of Co-60 beam respectively, which were within acceptable limit of   ±10%. A noticeable increase in PDDs was observed with increase of the field size at given depth which shows obvious contribution of secondary scattered radiation. Also measured PDDs were well matched with that of published PDDs of most of the authors i.e. ± 2%, but the measured PDDs were moderately matched with that of PDDs for only one author for some field sizes and some depths i.e. ±10%, which need to be rectified by taking more such data. 
Co-Authors A.A. Ketut Agung Cahyawan W Abda Abda Abdelslam Masoud Abobakr Amhabj Achmad Wicaksono Agus Muchsin Ahmad Ahmad Ahmad, Israr Alamsah, Andi Nour Ali, Javaid Amal A. R, Chaerul Andi Velahyati Baharuddin Andi Vita Sukmarini, Andi Vita Anggriani, Nining Anwar, Bushra Apriandi, Doni Areeb Ahmer ARIS ARIS, ARIS Arshi Saeed, Hafiza Atique, Rameen Ayen, Rosalina Yuliana Ayesha Muazzam Baharuddin, Andi Fathussalam Basri, Utari Nur Azizah Biradar, Ghufran Budiman Budiman Dendi Pratama Ernawan Setyono Erwin Rommel Febriana, Dina Febriansyah Febriansyah Fernanda, Muhammad Galuh Nashrulloh Kartika Mayangsari Rofam Hafiz, Abdul Hamdani Hamdani Hamid, Siti Hardiyanti Mustaina Handayani, Fransisca Heny Harnen Sulistyo Harnen Sulistyo, Harnen Hertati, Hertati Hossain, Md. Jakir Idris, Jabbar Karim, Ham Keerthana, K. B Kurniawati Kurniawati Kuswari, Zeta Lalitha Devi, A. Ludfi Djakfar Mishal Fatima Muanah, Muanah Muazzam, Ayesha Muh. Ikhsan, Muh. Muhammad Chaerul Muhammad Hamza Muhammad Khoiruddin Harahap Muhammad Ridwan Arif Muhammad Zain Kaleem Mujahid Mujahid, Mujahid Muliyadi Hamid Murni Murni Nadeem, Ayesha Nasta'in, Andi Firni Naveed, Areesha Naz, Irum Nurmadhani Fitri Suyuthi Nurnaningsih, Ratna Nurul Alam, AMM Pacitra, Silda Patel , Hrishitva Pradana, Syafa’at Anugrah Pusvitasari, Dwi Putra, Purniadi Rana, Tehreem reddi, Padmavathi Rezwan Shihab, Sk Rini Pebri Utari Ronia, Ronia Rosnaini Daga Saeed, Hafiza Arshi Sahbudin, Muhammad Samad, Mohammad Azwar Sania Tariq Shah, Rabbya Rayan Shehroz Ahmad Sohail, Muhammd Soomro, Hafeezullah Sree Hari, Y. Sri Adrianti Muin St. Rukaiyah Suci, Ida Ayu Sudirman L, Sudirman Sujatmiko Sujatmiko Sultana, Nahida Sunastri, Sunastri Sung Vioary, Anddy SURIANI, LILIS Suryady, Dedy Sutrawati Syirril Ihromi, Syirril Talib, Ambreen Tariq, Imadullah Thomas, Ronald Wahidin, Ikhsan Waseem Akram Wicaksono, Achmad Yasmi, Yasmi Yunus, Mujahid Yusmanizar Yusmanizar Zahra, Maryam Zulkifli Zulkifli