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Figure 1: (a) Seven29 inserted into the cavity of the octagonal Octavius phantom with CT base. (b) Seven29 inserted into the cavity of the octagonal Octavius phantom. (c) Ion chamber and solid water slabs inserted into the cavity of the Octavius phantom

Figure 1: (a) Seven29 inserted into the cavity of the octagonal Octavius phantom with CT base. (b) Seven29 inserted into the cavity of the octagonal Octavius phantom. (c) Ion chamber and solid water slabs inserted into the cavity of the Octavius phantom