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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.
Radomir Ilić, Jože Rant, Tomaž Šutej, Mirko Doberšek, Edvard Krištof, Jure Skvarč, Matjaž Koželj
Fusion Science and Technology | Volume 18 | Number 3 | November 1990 | Pages 505-511
Technical Notes on Cold Fusion | doi.org/10.13182/FST90-A29286
Articles are hosted by Taylor and Francis Online.
A search was conducted for neutrons, protons, tritons, 3He ions, gamma rays, and ion-induced X rays from deuterium-deuterium (D-D) fusion in cast (36-g), annealed (4-g), and cold-rolled (16-g) palladium specimens and a palladium hydrogen thermal valve (11 g) electrochemically charged with deuterium. The palladium cathodes were charged in an electrolytic cell [0.1 M LiOD (99.8% deuterium), platinum anode] at a current density of 25 mA/cm2 from 20 to 140 h. One unique aspect of the experiment was the radiation detection system, consisting of a CR-39 track-etch detector, bare for proton detection (sensitivity limit 4.8 × 10−2 fusion/s), combined with a polyethylene fast neutron radiator (0.95 fusion/s), a boron thermal neutron radiator (26 fusion/s), a BD-100 bubble damage polymer detector (5.2 fusion/s), an array of six 3He proportional counters (126 fusion/s), a CaF2 thermoluminescent dosimeter (11.4 fusion/s), and a germanium semiconductor spectrometer (17 fusion/s). The D-D fusion rate in cast, annealed, and cold-rolled palladium is <3 × 10−22, <7.8 × 10−21 and <1.2 × 10−21 (D-Dn) fusion/D-D pair·s−1, respectively. In the palladium hydrogen thermal valve, this value was <1.1 × 10−23 (D-Dp) fusion/D-D pair·s−1 and <2.3 × 10−22 (D-Dn) fusion/DD pair·s−1.