Feasibility of 18-MV grid therapy from radiation protection aspects: unwanted dose and fatal cancer risk caused by photoneutrons and scattered photons. - Amir-Hossein Karimi; Seyed Farshad Mirian; Farshid Mahmoudi; Ghazale Geraily; Héctor René Vega-Carrillo; Majid Mohiuddin (Comput. Methods Programs Biomed., 2022)