ANALISA KURVA PDD DAN PROFILE DOSE BERKAS ELEKTRON PESAWAT LINAC VARIAN CLINAC CX

Hasanah, Huswatun and Qomariyah, Nurul and Makmur, I Wayan Ari and Subroto, Rinarto and Wirawan, Rahadi (2020) ANALISA KURVA PDD DAN PROFILE DOSE BERKAS ELEKTRON PESAWAT LINAC VARIAN CLINAC CX. Indonesian Physical Review, 3 (2). pp. 84-92. ISSN 2615-1278

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Official URL: http://doi.org/10.29303/ipr.v3i2.43

Abstract

Linac (linear Accelerator) is a radiotherapy device that utilizes high energy radiation to kill cancer cells. Every radiotherapyequipment such as Linac must be calibrated periodically. One of them is monthly quality control which aims to test the performance of Linac so that the quality of the output of the radiation beam can be guaranteed. Quality control conducted covers measurement of Percentage Depth Dose (PDD) and Dose Profile. So that in this paper we will analyze the electron beam of Linac Therapeutic Clinics Variants plane of RSUD Provinsi NTB. In PDD measurements, the Linac Variant Clinac CX electron beam energy 4,6, 9, 12, and 15 MeV planes are used in theradiation field size 15 15 cm2. Meanwhile, the dose profile was measured in the radiation fields1010 cm2and 25 25 cm2using blue phantom, (referenceand field) detectors which are equipped with a computer control units (CCU) and carried out for crossline and inline directions at Dmax depth and certain depth with 100 cm SSD. The measurement results show that the greater the electron energy used, the maximum dose (Dmax) obtained is getting smaller,but the maximum dose depth increase. The measurement results are still within the tolerance range of ± 0.2. While the results of the Dose Profile measurements show a field size of 25x25 cm2 more flatness and symmetry than a 10x10 cm2field bothforinline and crossline directions and still within measurement tolerances limit 4.5% -7% forflatness and 2 % for symmetry.

Item Type: Article
Keywords (Kata Kunci): Flatness; Percentage Depth Dose (PDD); Dose Profile.
Subjects: Q Science > QC Physics
Divisions: Fakultas Matematika dan ilmu Pengetahuan Alam
Depositing User: Dr. Rahadi Wirawan
Date Deposited: 19 Sep 2022 02:41
Last Modified: 19 Sep 2022 02:41
URI: http://eprints.unram.ac.id/id/eprint/31902

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