ArticleJournal of applied clinical medical physics2026
Field output correction factors and perturbation factor analysis for novel SunSILICON and SunSILICON P silicon diode detectors.
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 2 papers.
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2 citing papers in PubMed.
- Clinical application of an unshielded silicon diode detector for relative electron beam dosimetry.Journal of applied clinical medical physics · 2026Article
- Clinical evaluation of two new unshielded and shielded silicon diode detectors in external photon beam radiation therapy: SunSILICON and SunSILICON P.Journal of applied clinical medical physics · 2026Article
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14 authors.
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Abstract
backgroundField output factor measurements of clinical linear accelerators require detector-specific corrections, due to the introduction of fluence perturbation effects by non-water-equivalent components of applied detectors. PURPOSE: This study aims to determine field output correction factors for novel shielded and unshielded silicon diode detectors in high energy photon fields. Special emphasis is placed on understanding the influence of perturbation factors and evaluating the suitability of these detectors across a wide range of field sizes.
methodsField output correction factors for the silicon diodes SunSILICON and SunSILICON P were determined through experimental measurements conducted at four distinct sites. Monte Carlo-based models of the diode detectors were developed to calculate field output correction factors using the EGSnrc code system. In addition, these silicon diode models enabled a detailed analysis of perturbation factors for field sizes from 0.6 cm up to 40 cm.
resultsExperimentally determined and Monte Carlo calculated field output correction factors are in good agreement for the detectors investigated. The perturbation factor analysis demonstrated a strong field size dependence of the fluence perturbation factor for silicon.
conclusionThis is the first study to systematically characterize the SunSILICON diode detector family using both simulation and measurement. The findings confirm that both shielded and unshielded designs are suitable for clinical dosimetry in photon beams, requiring only minor corrections. The shielding of the SunSILICON P diode enables accurate field output factor measurements across a broad range of field sizes, establishing its utility in modern radiotherapy applications.
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