Three different institutions with Elekta linacs (two VersaHD and one Synergy) equipped with the Agility MLC (Elekta AB, Stockholm, Sweden) and the RayStation TPS (RaySearch Laboratories, Stockholm, Sweden) participated in this study, using the 6 MV flattened beam. The Agility MLC uses a flat slightly non-target pointing surface [14] (link), [15] (link). The tilted leaf side is cut by the rounding of the leaf tip, reducing the maximum extension of the tongue-and-groove into the open region with a progressive increase of tongue-and-groove shadowing as far as 20 mm from the leaf tip end [7] (link).
Hussein M., Angerud A., Saez J., Bogaert E., Lemire M., Barry M., Silvestre Patallo I., Shipley D., Clark C.H, & Hernandez V. (2024). Improving the modelling of a multi-leaf collimator with tilted leaf sides used in radiotherapy. Physics and Imaging in Radiation Oncology, 29, 100543.
Other organizations :
National Physical Laboratory, RaySearch Laboratories (Sweden), Hospital Clínic de Barcelona, Ghent University Hospital, Centre Intégré Universitaire de Santé et de Services Sociaux du Centre-Sud-de-l'Île-de-Montréal, University College Hospital, University College London, Institut d'Investigació Sanitària Pere Virgili, Universidad Rovira i Virgili, Hospital Universitari Sant Joan de Reus
Elekta linacs (two VersaHD and one Synergy) equipped with the Agility MLC
RayStation TPS
dependent variables
Tongue-and-groove shadowing as far as 20 mm from the leaf tip end
control variables
6 MV flattened beam
Agility MLC with a flat slightly non-target pointing surface
Tilted leaf side cut by the rounding of the leaf tip, reducing the maximum extension of the tongue-and-groove into the open region
Annotations
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