Beam geometry optimization and convergence mode evaluation for knowledge‐based planning of hippocampal avoidance whole‐brain radiotherapy: A cross‐platform study with quantitative scorecard assessment - Anh Lam; Kirk Luca; Mandeep Kaur; Keyur D. Shah; Julia Seng; Kathryn Benner; Matthew Thomas; Hui‐Kuo Shu; Xiaofeng Yang; Chih‐Wei Chang; Justin Roper; Jie Ding (Journal of Applied Clinical Medical Physics, 2026)