J Korean Soc Ther Radiol.
1992 Dec;10(2):155-162.
Dose Distribution for Eye Shielding Block in 6 MV Photon Beam Therapy
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- 1Department of Radiology, College of Medicine, Ewha Womans University, Seoul, Korea.
Abstract
- The eye lens is known to be radiosensitive organ and catarat can be induced by relatively low dose of radiation. In the treatment of head and neck tumors, shielding blocks are frequently used to minimize dose on sensitive organs. The shielding block, which is trade of high atomic number materials (cerrobend), produce significant dose perturbations in megavoltage photos beams. The effects of these perturbations of eye shielding blocks are measured with film and ion chambers for the treatment of head and neck malignancies. Optimum parameters for the treatment are suggested.
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