Tissue-air ratios for cobalt 60 therapy units
- 1 May 1983
- journal article
- research article
- Published by Oxford University Press (OUP) in The British Journal of Radiology
- Vol. 56 (665) , 315-319
- https://doi.org/10.1259/0007-1285-56-665-315
Abstract
Tissue-air ratio (TAR) is the widely used dosimetric parameter for treatment planning in [antineoplastic] radiation therapy. Comparison of the measured TAR values of 19 60Co therapy units of 8 different types was made with the widely used tabulated data of Gupta and Cunningham (1966). The experimental data, and the analysis of the variation in the TAR values caused by individual, unit by unit features, show that discrepancies may be up to .+-. 4%.This publication has 11 references indexed in Scilit:
- Revised cobalt-60 depth dose dataThe British Journal of Radiology, 1980
- A review of the discrepancy between the in-air and in-water calibration of cobalt-60 machinesMedical Physics, 1980
- The Equivalent Tissue-Air Ratio Method for Making Absorbed Dose Calculations in a Heterogeneous MediumRadiology, 1978
- A detailed re-evaluation of C$\lambda$ and CE with application to ferrous sulphate G-valuesPhysics in Medicine & Biology, 1978
- The steepness of the dose response curve both for tumor cure and normal tissue injuryThe Laryngoscope, 1975
- Spectral Distributions From60Co Therapy UnitsActa Radiologica: Therapy, Physics, Biology, 1973
- Variation of60Co back-scatter factors with different machinesThe British Journal of Radiology, 1969
- Measurement of Tissue-Air Ratios and Scatter Functions for Large Field Sizes, for Cobalt 60 Gamma RadiationThe British Journal of Radiology, 1966
- Spectrum of the radiation from a cobalt 60 teletherapy unitThe British Journal of Radiology, 1963
- Spectral Distribution of Scattered Radiation from a Kilocurie Cobalt 60 UnitThe British Journal of Radiology, 1958