ArticleJournal of applied clinical medical physics2026
Dosimetric characterization of scatter foil-enhanced contact collimation for small superficial electron beam therapy.
Article in Journal of applied clinical medical physics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Dosimetric characterization of scatter foil-enhanced contact collimation for small superficial electron beam therapy.Journal of applied clinical medical physics · 2026Article
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2 authors.
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Abstract
purposeThis study evaluates the dosimetric impact of integrating thin metallic scatter foils with Cerrobend contact skin collimators to improve dose uniformity, conformality, and distal tissue sparing in small superficial electron fields. MATERIALS AND
methodsElectron beams of 8, 12, and 15 MeV from an Elekta Versa HD LINAC were delivered through a Cerrobend skin collimator with a 2.0 cm aperture at 100.0 cm SSD. Thin aluminum (Al) and lead (Pb) foils (< 2.50 mm) were placed on the collimator. Gafchromic EBT3 film in a solid-water phantom was used to measure depth-dose distributions and isodose profiles following TG-235-consistent calibration.
resultsScatter foils produced thickness- and Z-dependent modulation of beam characteristics. At 8 MeV, the thickest Pb foil (1.07 mm) reduced the practical range (R
conclusionsThin metallic foils placed on Cerrobend skin collimators enable a controllable balance between dose uniformity (improved with Al) and conformality with distal sparing (enhanced with Pb). This simple, LINAC-independent configuration offers a cost-effective method for modulating small-field electron beam characteristics and may serve as a practical adjunct for treating superficial lesions.
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