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Latest News
Strontium: Supply-and-demand success for the DOE’s Isotope Program
The Department of Energy’s Isotope Program (DOE IP) announced last week that it would end its “active standby” capability for strontium-82 production about two decades after beginning production of the isotope for cardiac diagnostic imaging. The DOE IP is celebrating commercialization of the Sr-82 supply chain as “a success story for both industry and the DOE IP.” Now that the Sr-82 market is commercially viable, the DOE IP and its National Isotope Development Center can “reassign those dedicated radioisotope production capacities to other mission needs”—including Sr-89.
V.D. Pustovitov
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 451-454
Magnetohydrodynamic Equilibrium And Stability | doi.org/10.13182/FST95-A11947126
Articles are hosted by Taylor and Francis Online.
Quasi-symmetry condition, which demands that B2 does not depend on one from two angles in Boozer coordinates, is analyzed for stellarators with planar circular axis. In stellarator approximation this condition is reduced here to two equations. The first one imposes a restriction on the helical field which can be satisfied by a proper choice of satellite helical harmonics. At the same time problem remains to suppress poloidal asymmetry of B2 related with toroidicity, the condition described by the second equation.