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Fusion Science and Technology
Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Hideaki Matsuura, Yasuyuki Nakao, Yutaka Tanaka, Kazuhiko Kudo
Fusion Science and Technology | Volume 24 | Number 1 | August 1993 | Pages 17-27
Technical Paper | Plasma Engineering | doi.org/10.13182/FST93-A30171
Articles are hosted by Taylor and Francis Online.
Formation of an effective ion tail due to neutral beam injection heating during startup in D-3He plasmas is investigated. The main idea is to reduce the energy input required for startup heating as well as the 14-MeV neutron yield by creating an effective tail The optimal beam injection energy and beam species are first estimated by solving the steady-state Fokker-Planck equations for the injected species and for tritons. The startup of D-3He plasma is simulated by simultaneously solving the time-dependent power balance and particle conservation equations together with the Fokker-Planck equations. As a result of tail formation in the fuel ion distribution, both the total input energy and the 14-MeV neutron yield during the startup phase are reduced by ∼20% from the values for Maxwellian plasma.
