Skip to main content
Fig. 1 | Radiation Oncology

Fig. 1

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. 1

Circular collimator: SVID dependence of radial dose. Radial dose distribution for circular collimator at SVID 70 cm (continuous) and at 50 cm (thin dashed), normalized to the distribution for circular collimator at SID 100 cm. 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

Back to article page

Radiation Oncology

ISSN: 1748-717X

Contact us