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radiation, medicine

Radioprotection (1)

EDPS Sciences - Radioprotection (1)

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Determination of the gamma-ray effective dose from different cylindrical radioactive solution sources in a biological tissue by using Monte Carlo calculations
M. A. Misdaq, A. Merzouki
Journal:

Radioprotection / Volume 37 / Issue 2 / April 2002

Published online by Cambridge University Press:

17 June 2005, pp. 149-160

Print publication:

April 2002
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A new method was developed based on calculating the absorption coefficients, self-absorption coefficients and transmission coefficients of the gamma-photons emitted by different radioisotopes for evaluating gamma dose equivalent rates, at 1 meter from various cylindrical radioactive solution sources utilized in medicine, in a biological tissue. Results obtained were compared with data given in literature. The influence of the radioisotope half-life and gamma-photon energy and number of photons per disintegration on the gamma dose equivalent rate, effective dose and threshold initial activity of the considered solution sources was studied.