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The Fricke dosimeter as a 1-hit detector

1986; Pergamon Press; Volume: 11; Issue: 6 Linguagem: Inglês

10.1016/1359-0189(86)90056-7

1878-1691

Robert S. Katz, G.L. Sinclair, M.P.R. Waligórski,

Radiation Therapy and Dosimetry

A fit to the experimental data for the response of the Fricke dosimeter to energetic heavy ions is obtained using a calculation of the relative effectiveness of a 1-hit detector, from track theory. We use 2 fitted parameters, the target size, α0, which may be thought to represent a ‘diffusion length’, and E0, the dose of gamma-rays at which there is an average of one hit per target (the D-37 dose), and a new algorithm for the average radial distribution of dose in liquid water from the passing ion. The G value for ions is then given as the product of the calculated relative effectiveness and the experimental G value for gamma rays.