نتایج جستجو برای: actinides
تعداد نتایج: 863 فیلتر نتایج به سال:
The effects of inhaled alpha-emitting actinides on the alveolar macrophage (AM) population of the rodent lung are reviewed and, in particular, of the effects of 239PuO2 on murine AM. The effects discussed include changes the AM pool size, macrophage diameter, mobility, phagocytic competence, and enzyme content. Finally, similarities in the dose-response relationships for the induction of nuclea...
An innovative ultrasensitive technique was used for lead isotopic analysis of individual zircons extracted from granite core samples at depths of 960, 2170, 2900, 3930, and 4310 meters. The results show that lead, a relatively mobile element compared to the nuclear waste-related actinides uranium and thorium, has been highly retained at elevated temperatures (105 degrees to 313 degrees C) under...
Measurements of highly radioactive actinides such as Np, Pu, Am, or Cm in as-fabricated irradiated nuclear fuels are crucial to improve the safety and performance fuel cycle, but also necessary find solutions environmental impact long-lived waste. Currently, most common technique measuring quantity distribution is electron probe microanalysis (EPMA). However, accurate analysis by EPMA accompani...
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