Verification of radiation absorbed dose calculated by treatment planning system.

Date

2018-6

Type

Article

Journal title

جامعة طرابلس

Author(s)

Abdurraouf M. Aghila
F. E. Shrif
R. Abujabha

Abstract

A computerized Treatment Planning System (TPS) is an important tool for designing a treatment plan of cancer patients. Testing the accuracy of planned and calculated radiation dose obtained by TPS delivered to the tumor inside the cancer patients was the purpose of this study. For this purpose, a 2D PLATO-RTS Treatment planning system was used to calculate the dose at specific points inside an Alderson Rando phantom. The absorbed radiation dose inside the phantom was measured using the thermoluminescent dosimeter TLD-100s Lithium Flouride (LiF:Mg;Ti). The results of absorbed radiation dose obtained by TPS were compared with the results obtained by TLD. The largest difference between planned and measured radiation dose was found 12.5 cGy, and the mean percentage error was found 8.82% and 2.53% which is considered to be acceptable with TLD 100 (LiF: Mg, Ti).

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