Электронный каталог

Статья

Bondaruk, A.A.
Flexible Ta/Bi Structures for Effective Radiation Shielding Against Ionizing Radiation / A.A.Bondaruk, T.N.Vershinina, [a.o.]. – Text : electronic // Sensors and Actuators A: Physical. – 2025. – Vol. 383. – P. 116229. – URL: https://doi.org/10.1016/j.sna.2025.116229. – Bibliogr.: 68.

This study examined flexible structures made of tantalum and bismuth (Ta/Bi) that were electrodeposited at different current densities (10–25 mA/cm&sup(2)) using the galvanostatic regime. The density of the Ta/Bi structures was measured using the Archimedes method, and it was found to be 12.56 g/cm&sup(3). Microstructural parameter estimations, a chemical composition analysis, and an assessment of the practicality of gamma radiation protection were evaluated. Further analysis of the electrodeposited Bi layer revealed that, for films obtained in a galvanostatic regime, the microstructure assumes a granular sharp shape morphology. To further accurately evaluate the Ta/Bi structures radiation-protective qualities, the Phy-X/PSD software was used. The linear attenuation coefficients for the Ta/Bi structure were determined, showing values of 1.04228 cm&sup(-1)  for Co&sup(60), 58.91 cm&sup(-1)  for Am&sup(241) at 0.103 MeV, and similar effectiveness for Cs&sup(137) compared to traditional Pb shields. Additionally, the half-value layer of the Ta/Bi structure was measured at 1.28 cm for Co&sup(60), compared to 1.4 cm for Pb, indicating superior attenuation capabilities. It follows that the Ta/Bi structures have a high radiation absorption rate and shielding efficiency when exposed to various radiation sources (Co&sup(60), Am&sup(241), Cs&sup(137)) in comparison to traditionally used Pb shields.



Спец.(статьи,препринты) = С 349.1 - Действие излучения на материалы$
ОИЯИ = ОИЯИ (JINR)2025
Бюллетени = 16/025