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Advances in Radiotherapy
            & Nuclear Medicine                                             Shielding exaggeration in medical linac bunkers





































































            Figure 1. Vault design for a 6 and 10 MV linear accelerator with one primary barrier made from ordinary concrete while the other comprises ordinary
            concrete and iron. Image created by the author.
            Abbreviation: TPS: Treatment Planning System room.

            wide cross-section of the inner maze entrance, raising   21 cm of concrete – will be added, making the barrier’s
            the radiation levels (neutrons and gamma) at the bunker’s   total effective thickness approximately 116 cm of ordinary
            door. To increase this barrier’s thickness, 25 cm of concrete   concrete. Concrete blocks were utilized since concrete
            blocks with a density of at least 2.0 g/cm – equivalent to   cannot be easily poured at a thin thickness (25 cm).
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            Volume 3 Issue 2 (2025)                         41                        doi: 10.36922/ARNM025070007
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