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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.
Qingquan Yu, Sizheng Zhu
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 459-462
Magnetohydrodynamic Equilibrium And Stability | doi.org/10.13182/FST95-A11947128
Articles are hosted by Taylor and Francis Online.
The growth of m/n=2/1 tearing mode is studied numerically in a new kind of equilibrium magnetic configuration: a zeroth-order axisymmetric equilibrium field superposed with a small m/n=7/4 static helical field, where m and n are respectively the poloidal and toroidal mode numbers. The amplitude of the magnetic flux perturbation |φ2/1| is found to be reduced as the magnitude of the m/n=7/4 helical field increases. |φ2/1| can be reduced to zero when the m/n=7/4 magnetic island is large enough that it overlaps the q=2 flux surface. Oscillatory |φ2/1| is also excited with appropriate the magnitude of the m/n=7/4 helical field. These results are of practical interest for tokamak reactor design.