Nuanpen Damrongkijudom. (2001) The study of head-scatter factors in open and wedge fields for 6 and 10 MV photon beams from linear accelerators. Mahidol University,:ม.ป.ท.Nuanpen Damrongkijudom. 2001. The study of head-scatter factors in open and wedge fields for 6 and 10 MV photon beams from linear accelerators. ม.ป.ท.:Mahidol University,;Nuanpen Damrongkijudom. The study of head-scatter factors in open and wedge fields for 6 and 10 MV photon beams from linear accelerators. ม.ป.ท.:Mahidol University, 2001. Print.