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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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Latest News
First astatine-labeled compound shipped in the U.S.
The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”
X.M. Chen, V.E. Schrock
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 727-731
Inertial Fusion | doi.org/10.13182/FST91-A29431
Articles are hosted by Taylor and Francis Online.
In both earlier and current ICF blanket designs a problem of a free annulus radial expansion emerges after microexplosion. If the annulus fractures, it could increase the total liquid surface area available for condensation by hundreds times. Whether the fragmentation can happen or not depends on the internal pressure and surface stability. In this paper a model based on incompressible cylindrically symmetric flow is used to get a theoretical solution similar to that of the Rayleigh's solution for bubble dynamics. The pressure inside the annulus is found positive at all time but the peak is lowering during the expansion. Besides, both surfaces are Taylor stable during such motion. Thus, it is concluded that an annulus in outward radial motion will not cavitate or breakup.