We introduce a logical process of three distinct phases to begin the evaluation of a new 3D
dosimetry array. The array under investigation is a hollow cylinder phantom with diode …

Purpose: The dosimetric leaf gap (DLG) in the Varian Eclipse treatment planning system is
determined during commissioning and is used to model the effect of the rounded leaf‐end of …

Abstract Background The Agility multileaf collimator (MLC) mounted in Elekta linear
accelerators features some unique design characteristics, such as large leaf thickness …

Purpose: In advanced radiotherapy treatments such as intensity modulated radiation therapy
(IMRT) and volumetric modulated arc therapy (VMAT), verification of the performance of the …

Individual QA for IMRT/VMAT plans is required by protocols. Sometimes plans cannot pass
the institute's QA criteria. For the Eclipse treatment planning system (TPS) with rounded leaf …

The aim of this work was to experimentally determine the difference in response of an
amorphous silicon electronic portal imaging device (EPID) to the open and multileaf …

Purpose A new medical linear accelerator (linac) platform integrated with helical computed
tomography (CT), the uRT‐linac 506c, was introduced into clinical application in 2019 by …

Partial transmission through rounded leaf ends of Varian multileaf collimators (MLC) is
accounted for with a parameter called the dosimetric leaf gap (DLG). Verification of the value …

Modelling of the multi-leaf collimator (MLC) in treatment planning systems (TPS) is crucial for
the dose calculation accuracy of intensity-modulated radiation therapy plans. However, no …

The Halcyon is Varian's latest linear accelerator that offers a single 6X flattening-filter-free
beam with a jawless design that features a new dual layer multileaf collimator system with …