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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.
W. L. Baker, J. H. Degnan, J. D. Beason, G. Bird, C. N. Boyer, J. S. Buff, S. K. Coffey, J. F. Davis III, M. H. Frese, J. D. Graham, K. E. Hackett, D. J. Hall, J. L. Holmes, E. A. Lopez, R. E. Peterkin, Jr., D. W. Price, N. F. Roderick, S. W. Seiler, P. J. Turchi
Fusion Science and Technology | Volume 27 | Number 2 | March 1995 | Pages 124-131
Experimental Device | Special Section: Pulsed High-Density Systems | doi.org/10.13182/FST95-A30369
Articles are hosted by Taylor and Francis Online.
Vacuum inductive-store, plasma flow switch-driven implosion experiments have been performed using the Shiva Star capacitor bank (1300 µf, 3 nH, 120 kV, 9.4 MJ). A coaxial plasma gun arrangement is employed to store magnetic energy in the vacuum volume upstream of a dynamic discharge during the 3- to 4-µs rise of current from the capacitor bank. Motion of the discharge off the end of the inner conductor of the gun releases this energy to implode a coaxial cylindrical foil. The implosion loads are 5-cm-radius, 2-cm-long, 200 to 400 µg/cm2 cylinders of aluminum or aluminized Formvar. With 5 MJ stored initially in the capacitor bank, more than 9 MA are delivered to the implosion load with a rise time of ∼200 ns. The subsequent implosion results in a radiation output of 0.95 MJ at a power exceeding 5 TW (assuming isotropic emission). Experimental results and related two-dimensional magnetohydrodynamic simulations are discussed.