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North American construction is back—smaller and faster—at OPG’s Darlington
“The nuclear renaissance is real here,” said Ontario Power Generation’s Subo Sinnathamby on May 8, one year to the day after OPG secured a final investment decision to build the first of four planned BWRX-300 reactors at its Darlington nuclear power plant, and shortly after the new reactor’s foundation was lifted into place. “We got our license to construct in April and our [final investment decision] in May, and we’ve been off to the races since.”
Jan S. Brzosko, B. V. Robouch, Joanna Klobukowska
Fusion Science and Technology | Volume 12 | Number 1 | July 1987 | Pages 71-91
Technical Paper | Experimental Device | doi.org/10.13182/FST87-A25052
Articles are hosted by Taylor and Francis Online.
Experiments were carried out in the neutronoptimized mode of the plasma focus operation with small electrode diameters and condenser bank energies of 250, 390, and 490 kJ. The time sequence of the emitted radiation (neutron and gamma) was realized by the time-of-flight (TOF) method using an NE-102A plastic scintillator and silicon detectors viewing X rays from the plasma exclusively. The detectors were operated in the wide-energy window mode. Special attention was given to the interpretation of neutron TOF traces and their comparison with the absorption analysis and previously measured spectra by nuclear plates. The usefulness of gamma rays emitted by (n, n′γ) processes in electrodes is shown to be a precise indicator of the time evolution of the neutron emissivity. These conclusions are based on many shots that were statistically analyzed. Average values are discussed simultaneously with the results of representative single shots. It was found that two (sometimes more) neutron bursts are typical and, in each case, are accompanied by simultaneous hard X rays. The maxima of emissivities coincide with the dI/dt maximum. A theoretical analysis of the results reveals the existence of long time-confined streams of fast electrons and deuterons (effective energy ∼80 keV) with evidence of their slowing down.