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DOE publishes 26 Genesis Mission AI challenges for energy and national security
The Department of Energy’s newly published Genesis Mission National Science and Technology Challenges describes 26 challenges and corresponding AI solutions designed to advance the artificial intelligence–focused Genesis Mission, which was established by presidential executive order last November to develop an “integrated platform that connects the world’s supercomputers, experimental facilities, AI systems, and unique datasets across every major scientific domain to double the productivity and impact of American research and innovation within a decade.”
Robert Bentley, Geno Santistevan, Douglas Wells, Andrew Hutton, Adam Stavola, Steve Benson, Kevin Jordan, Joe Gubeli, Pavel Degtiarenko, Lila Dabill
Nuclear Science and Engineering | Volume 198 | Number 1 | January 2024 | Pages 158-166
Research Article | doi.org/10.1080/00295639.2023.2180265
Articles are hosted by Taylor and Francis Online.
This research explored the development of the photonuclear production method of Cu from Ga as well as Sc from V. Both products serve as high-demand research medical radioisotopes. Furthermore, an understanding of these reactions is significant to fundamental nuclear physics and astrophysics. Bremsstrahlung flux was induced by an electron linac and a 1-mm tungsten radiator. Irradiation of gallium oxide powder, 98.78% pure Ga, and a natural vanadium foil at 30.9 MeV and 100 W for 1 h produced 64.4 ± 0.4 Bq/W·s·kg of Cu and 164 ± 3.1 Bq/W·s·kg of Sc. A secondary irradiation with 99.6% pure Ga and natural vanadium at 31.5 MeV and 100 W for 1.1 h produced 79.8 ± 0.9 Bq/W·s·kg of Cu and 136 ± 7.2 Bq/W·s·kg of Sc. The photoinduced activation is promising; however, further research into optimal geometry and power is required to maximize specific activity. Natural nickel was also irradiated to serve as a benchmark comparison. Effective cross sections for each reaction were inferred.