References
- Jevbratt L, Lagergren C, Sarby B. Direct beam control in radiotherapy with high energy photons. Acta Radiol Oncol 1971; 10: 433–42
- Hammoudah M M, Henschke UK. Supervoltage beam films. Int J Radiat Oncol Biol Phys 1977; 2: 571–7
- Haus A G, Pinsky S M, Marks JE. A technique for imaging patient treatment area during a therapeutic radiation exposure. Radiology 1970; 97: 653–6
- Droege R T, Bjärngard BE. Influence of metal screens contrast in megavoltage x-ray imaging. Med Phys 1979; 6: 487–93
- McDonnel G M, Berman H L, Lodmell EA. Supervoltage roentgenography. 1958; 79: 306–20
- Frank E D, Gray J E, Wilking DA. Flood replenishment: a new method of processor control. Radiol Technol 1980; 52: 271–5
- Lutz W R, Bjärngard BE. A test object for evaluation of portal films. Int J Radiat Oncol Biol Phys 1985; 11: 631–4