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Astatine sorption by ion exchange resins from nitric acid media. 

The past few years have brought a reckoning to the United States, as awareness of our country’s injustices dramatically increased, elevating international movements for equity. Although the road to equity remains long, the United States delegation was inspired to highlight a few women's stories showcasing their success in physics as well as their struggles. We aim to elevate their accomplishments, knowing we cannot possibly highlight all the amazing stories, to further validate and support women’s importance in physics. Physicists are presented in three main categories: (1) Legacy: Women in physics who have made their mark (no longer active, retired, or deceased); (2) Active: Women who are making their mark now (already established in the field, mid-career to senior); and (3) Emerging: Women who are primed to make their mark in the future (current students and postdocs or early career). 

Astatine-211 has been produced at Texas A&M University on the K150 cyclotron, with a yield of 890 ± 80 MBq through the 209 Bi(α,2n) 211 At reaction via an 8 h bombardment with a beam current of 4–8 μA and an α-particle beam energy of 28.8 MeV. The target was then dissolved in HNO 3 and the extraction of 211 At was investigated into a variety of organic solvents in 1–3 M HNO 3 . Extraction of 211 At with distribution ratios as high as 11.3 ± 0.6, 12.3 ± 0.8, 42.2 ± 2.2, 69 ± 4, and 95 ± 6 were observed for diisopropyl ether, 1-decanol, 1-octanol, 3-octanone, and methyl isobutyl ketone, respectively, while the distribution ratios for 207 Bi were ≤0.05 in all cases. The extraction of 211 At into both methyl isobutyl ketone and 3-octanone showed a strong, linear dependence on the HNO 3 initial aqueous concentration and better extraction than other solvents. DFT calculations show stronger binding between the carbonyl oxygen of the ketone and the At metal center.