Istituto di Geoscienze e Georisorse     
Bigazzi G., Hadler Neto J., Iunes P., Khouri M., Navia M., Osorio A., Paulo S., Zuniga A. Problems related to the employment of thin uranium films as neutron dosimeters. In: Radiation Measurements, vol. 25 (1-4) pp. 459 - 460. Elsevier, 1995.
Thin uranium films built on muscovite mica basis and obsidian samples having known ages were irradiated with thermal neutrons at the IPEN/CNEN reactor, São Paulo. Comparing thin film performance with the obsidian one, it was observed that the latter “feel” a greater neutron fluence. Nominal fluences at the used facility are in agreement with the results obtained analysing the obsidian samples. A probable hypothesis to explain this disagreement, namely, the uranium loss from the thin films, was ruled out.
URL: http://https://www.journals.elsevier.com/radiation-measurements/
Subject fission-track dating
neutron dosimetry
uranium thin films

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