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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.”
A. Nobile, M. M. Balkey, J. J. Bartos, S. H. Batha, R. D. Day, J. E. Elliott, N. E. Elliott, V. M. Gomez, D. J. Hatch, N. E. Lanier, J. R. Fincke, R. Manzanares, T. H. Pierce, D. L. Sandoval, D. W. Schmidt, W. P. Steckle
Fusion Science and Technology | Volume 45 | Number 2 | March 2004 | Pages 95-106
Technical Paper | Target Fabrication | doi.org/10.13182/FST04-A434
Articles are hosted by Taylor and Francis Online.
Experimental campaigns are being conducted at the 60 beam OMEGA laser at the University of Rochester's Laboratory for Laser Energetics to acquire data to validate hydrodynamic models in the high energy-density regime. This paper describes targets that have been developed and constructed for these experimental campaigns. Targets are 860 m inner diameter by 2.2 mm length cylinders with 70 m thick polymer ablator. On the ablator inner surface and located halfway along the axis of the cylinder is a 500 m wide Al marker band. Band thicknesses in the range 8-16 microns are used. CH foam with densities in the range 30-90 mg/cc fills the inside of the cylinder. While these targets have been fabricated for years, several new improvements and features have recently been developed. Improvements include the use of epoxy instead of polystyrene for the ablator, and the use of electrodeposited Al for the marker band. A critical feature of the target is the surface feature that is placed on the marker band. Experiments are aimed at understanding the hydrodynamic behavior of imploding cylinders as a function of this surface feature. Recent development work has focused on production of engineered surface features on the target marker band. Using a fast tool servo on a diamond turning lathe, a wide range of specified surface features have been produced. This paper will address improvements to the cylinder targets as well as current development efforts.