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This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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.”
G. I. Dimov, A. V. Ivanov
Fusion Science and Technology | Volume 63 | Number 1 | May 2013 | Pages 111-114
doi.org/10.13182/FST13-A16883
Articles are hosted by Taylor and Francis Online.
For neutralization of the H- beams with an energy of 1 MeV, it is reasonable to use plasma targets with the yield of atoms much higher than that in gas targets. The target plasma is proposed to be confined in a magnetic trap with weak longitudinal magnetic field, the inverse plugs and circular multipole walls. Because of conservation of canonical angular momentum in the axially-symmetric system, the longitudinal confinement of particles by inverse plugs is rather hard. Transversal confinement of plasma is rather good. The target plasma is proposed to be generated by the 100-200 eV electrons.A possibility to develop the experimental plasma target with a 10 cm aperture is considered for neutralization of the H- ion beam with a current up to 2 A. A magnetic field is planned to be formed by circular NdFeB magnets and iron screens. Results are given of the computer simulations for the magnetic system and its optimization for the plasma confinement and especially for restriction of its escape through the end wall holes. Numerically calculated trajectories of the ensemble of plasma electrons with various initial coordinates and trajectories of beam ions are given.