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Modernizing I&C for operations and maintenance, one phase at a time
The two reactors at Dominion Energy’s Surry plant are among the oldest in the U.S. nuclear fleet. Yet when the plant celebrated its 50th anniversary in 2023, staff could raise a toast to the future. Surry was one of the first plants to file a subsequent license renewal (SLR) application, and in May 2021, it became official: the plant was licensed to operate for a full 80 years, extending its reactors’ lifespans into 2052 and 2053.
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.