Effect of chelated mineral supplementation on the absorption of Cu, Fe, K, Mn and Zn in horse hair |
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Authors: | M. J. A. Armelin R. L. Ávila R. M. Piasentin M. Saiki |
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Affiliation: | (1) Radiochemistry Division, BARC, Trombay, Mumbai, 400085, India |
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Abstract: | The effects of gamma-irradiation at a dose range of 5-56 Mrad on the fission track registration efficiency of the Tuffak polycarbonate track detector from dry (Kdry) as well as the solution media (Kwet) are investigated. Fission tracks were recorded in the gamma-irradiated detectors along with the unirradiated ones by an electrodeposited source of 252Cf and also separately from a 252Cf solution. The fission track registration efficiencies for the irradiated detectors were determined in comparison with those of the unirradiated detectors. The results show that while the Kdry values for the irradiated detectors decrease by about 2-10%, the corresponding Kwet values decrease by about 3-20% as compared to unirradiated detectors . Further, the bulk etch rates were found to increase with the increase in gamma dose. The changes induced in the gamma-irradiated detectors as a function of dose have been studied also by thermogravimetry (TG). |
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