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Fig. 3 | Radiation Oncology

Fig. 3

From: Finer leaf resolution and steeper beam edges using a virtual isocentre in concurrence to PTV-shaped collimators in standard distance – a planning study

Fig. 3

MLC compared with circular collimator at same SVID. Radial dose distribution for MLC normalized to the distribution for circular collimator at different SID: 100 cm (thick dashed), SVID 70 cm (continuous), and 50 cm (thin dashed). Shaded area: PTV. Left: PTV ∅ 1.0 cm; middle: PTV ∅ 1.3 cm; right: PTV ∅ 1.7 cm. Prescriptions: top: D70%; middle: D80%; bottom: D90%. S(V)ID: SID or SVID

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Radiation Oncology

ISSN: 1748-717X

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