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Function to represent the variation of central axis tissue air ratio with two dimensions of 60Co rectangular fields. 1976

S Jayaraman

Tissue air ratios (TAR) for rectangular 60Co fields depend on the two dimensions of the field. Functions which make use of the two dimensions of the field as parameters have been derived. The accuracy of fit such functions can give to the standard tissue air ratio data have been studied and discussed.

UI MeSH Term Description Entries
D008433 Mathematics The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Mathematic
D011879 Radiotherapy Dosage The total amount of radiation absorbed by tissues as a result of radiotherapy. Dosage, Radiotherapy,Dosages, Radiotherapy,Radiotherapy Dosages
D003037 Cobalt Radioisotopes Unstable isotopes of cobalt that decay or disintegrate emitting radiation. Co atoms with atomic weights of 54-64, except 59, are radioactive cobalt isotopes. Radioisotopes, Cobalt
D000388 Air The mixture of gases present in the earth's atmosphere consisting of oxygen, nitrogen, carbon dioxide, and small amounts of other gases.

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