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Fusion energy: Progress, partnerships, and the path to deployment
Over the past decade, fusion energy has moved decisively from scientific aspiration toward a credible pathway to a new energy technology. Thanks to long-term federal support, we have significantly advanced our fundamental understanding of plasma physics—the behavior of the superheated gases at the heart of fusion devices. This knowledge will enable the creation and control of fusion fuel under conditions required for future power plants. Our progress is exemplified by breakthroughs at the National Ignition Facility and the Joint European Torus.
A.G. Heics, W.T. Shmayda, R. Matsugu, S.K. Sood, K. Kalyanam, G.M. Pien, S. Letzring
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 1515-1520
Tritium Waste Management and Discharge Control | Proceedings of the Fifth Topical Meeting on Tritium Technology In Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 | doi.org/10.13182/FST95-A30627
Articles are hosted by Taylor and Francis Online.
The Omega Upgrade at the Laboratory for Laser Energetics will commence deuterium-tritium (DT) shots in 1995. Omega Upgrade utilizes a 350 nm, 30 kJ laser to energize DT filled targets contained within an evacuated target chamber (TC). Up to 10 DT shots per day are planned, 5 days a week, with each target containing 20 mCi of tritium. Cryopumps, used to achieve high vacuum in the TC and to collect unburnt gases following DT shots, are regenerated on a monthly basis. The Tritium Scrubber System (TSS) has been designed to capture tritium released from the cryopumps, vacuum pump exhaust streams, outgassing from internal surfaces, and in the event of target rupture. A large quantity of low activity gas needs to be processed by the system; the target chamber and diagnostic antechambers will be evacuated up to 8 and 2000 times each month, respectively. The TSS has been designed to interface with existing equipment at the facility. To permit the safe handling of tritium gas products and to comply with emission regulations, modifications are required to the facility to enable the capture of tritiated species from exhaust streams before being released to the atmosphere. The targeted annual tritium emission for the facility is less than 10 mCi. The TSS utilizes zirconium alloy hydride beds and molecular sieve beds to detritiate exhaust streams prior to stacking to satisfy this stringent emission target.