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The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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Finland in Front: The World’s Likely First Spent Fuel Repository Moves Toward Licensing
The year 2024 is shaping up to be a historic one for Posiva, the waste management organization owned by Finland’s two nuclear power plant utilities, Fortum and Teollisuuden Voima. The company is looking to receive regulatory approval of its operating license for the Onkalo deep geological repository for high-level radioactive waste by the end of the year.
Pengcheng Li, Matthew T. Bernards
Nuclear Science and Engineering | Volume 181 | Number 3 | November 2015 | Pages 310-317
Technical Paper | doi.org/10.13182/NSE15-2
Articles are hosted by Taylor and Francis Online.
Radioactive iodine gas is a problematic species in multiple nuclear energy–related applications. Therefore, it is highly desirable to develop an adsorbent that has a high capacity for iodine. In this investigation, the iodine adsorption capacity of high-purity magnesium oxide was investigated as a function of the calcination conditions. Differences in the magnesia substrates were characterized by scanning electron microscopy and X-ray diffraction, and the iodine adsorption capacity was determined using thermogravimetric analysis. The results indicate that the calcination temperature and time have a significant impact on the adsorption capacity, with longer times and higher temperatures having a negative impact. However, under the optimal calcination conditions identified in this study (550°C for 20 min), the high-purity magnesia was found to have an adsorption capacity >300 mg of iodine per gram of sorbent. This suggests that magnesia holds promise for nuclear applications where iodine gas adsorption would be beneficial.