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ANS Student Conference 2025
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Albuquerque, NM|The University of New Mexico
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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.
E.T. Cheng, R.J. Cerbone, Y.-K.M. Peng, J.D. Galambos, D. Strickler, I.N. Sviatoslavsky, C.P.C. Wong, D.K. Sze, X.R. Wang, M. Simnad, M. Tillack
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 1066-1070
Nuclear Testing and Design (Poster Session) | doi.org/10.13182/FST98-A11963755
Articles are hosted by Taylor and Francis Online.
Progress is given on the investigation of a low cost, scientifically attractive, and technologically feasible volumetric neutron source (VNS) based on the spherical torus (ST) concept. The ST-VNS has a major radius of 1.07 m, an aspect ratio of 1.4, and a plasma elongation 3. It can produce a neutron wall loading ultimately up to 5 MW/m2 averaged over the outboard test section when the fusion power reaches 380 MW. Initial operation of this device can be at a level of 1 MW/m2 or lower. Higher performance blanket components can be developed to raised the neutron wall loading. Using staged high wall loading operation scheme and optimistic availability projected for the VNS device, a neutron fluence of more than 30 MW-y/m2 can be expected to accumulate within 20 years of operation. Assessments of lifetime and reliability of fusion core components will thus be allowed in a power reactor relevant environment. A full-function testing of fusion core components may also become possible because of the high neutron wall loading capability. Integrated testing of tritium breeding in such a full scale power reactor relevant VNS device can be very useful to verify the self-sufficiency of fuel cycle in candidate power blanket concepts.