[Description of the dose distribution in the radiation field of a teletherapy unit with Co-60 (author's transl)].
Equations are given for the calculation of dose distributions for teletherapy with Co-60. The distribution of primary radiation in the penumbral region is derived approximately from geometrical data of the source and diaphragm. Empirical formulas are given for the distribution of scattered radiation and for the tissue-air ratio. Constants in the equations were taken from measurements. The influences of source-skin distance, tissue depth, field size, angle of incidence, and penumbra trimmers are taken into account. Nevertheless the calculations do not exceed the capacity of a desk-top computer.
D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D003201:Computers; D006801:Humans; D008433:Mathematics; D011867:Radioisotope Teletherapy; D011879:Radiotherapy Dosage; D012542:Scattering, Radiation
D003037:Cobalt Radioisotopes
Eine Beschreibung der Dosisverteilung im Strahlungsfeld einer Gammabestrahlungsanlage mit Co-60.