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Abstract

The current study aims to measure and compare the field width emerging from the radiotherapy linear accelerator in different directions, three dimensions were chosen to measure the field width in an orderly (inline, cross line, diagonal A and B) manner. The 10 Mv and 6 Mv photon beam energies were used, and the Star Track device was adopted to measure the field width in different directions. The radiotherapy linear accelerator at the Baghdad Center for Radiation Therapy and Nuclear Medicine was used every week five weeks. The results recorded that when the energy increased 10 Mv, there was an increase in field width, reaching 10.55/10.45 ± 0.2 cm in the fourth week, while it decreased and became 10.49 /10.52 ± 0.2 cm when the energy was 6 Mv. In direction diagonal A and B, the readings were within the limits, as they did not exceed the applicable limits, namely 14.46± 0.2 cm for 10 Mv and 14.49 ± 0.2 cm for 6 Mv. All results were within the permissible limits and in force of the global health organizations, where the readings did not exceed 10.52 ± 0.2 cm for 6 Mv, 10.54 ± 0.2 cm for 10 Mv from the tolerance reference.

Keywords

field width, Quality management, linear accelerator, Radiation therapy, Star Track

Subject Area

Physics

Article Type

Article

First Page

2313

Last Page

2320

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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