Abstract
The International Commission on Radiological Units and Measurements (ICRU) in Report 24(1) has suggested that the degree of accuracy required for the delivery of tumor dose in radiotherapy is ±5%. This number is largely based on an interpretation of the steepness of the response-versusdose curve for a rather limited number of tissues. Although there is in fact no unequivocal way of knowing what accuracy is required, this is probably reasonable. There are a number of steps in the delivery of a prescribed dose to a patient. These include (a) the calibration of a dosimeter, (b) its use in dose determination in a water phantom, (c) the calculation of dose in a ‘water-equivalent’ patient and its correction to make allowance for tissue inhomogeneities, and, finally, (d) the actual delivery of the treatment. This chapter deals with the third of these steps.
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© 1982 Plenum Press, New York
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Cunningham, J.R. (1982). Tissue Inhomogeneity Corrections in Photon-Beam Treatment Planning. In: Orton, C.G. (eds) Progress in Medical Radiation Physics. Progress in Medical Radiation Physics, vol 1. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7691-4_2
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DOI: https://doi.org/10.1007/978-1-4615-7691-4_2
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