Fig 3

a Dose profile in solid water phantom compared with predicted dose from AXB, AAA, and PB. b Film exposure after irradiation of sinus target from Fig. 2. c Horizontal dose profile from Fig. 3b compared with predicted dose from AXB, AAA, and PB. d Vertical dose profile from Fig. 3b compared with predicted dose from AXB, AAA, and PB. * indicates p < 0.05 for all figures between AXB and both PB and AAA