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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.
L. Rodrigo, J.A. Sawicki, R.E. Johnson
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 1410-1415
Tritium Storage, Distribution, and Transportation | 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-A30609
Articles are hosted by Taylor and Francis Online.
A postmortem analysis of samples of deactivated SAES St707 getter particles recovered from a glove box purification system was conducted to determine the cause for deactivation and eventual hydrogen capacity loss. Unused and used .getter samples were investigated by Auger Electron Spectroscopy (AES) and Mossbauer Transmission Spectroscopy (MTS) of 57Fe. Hydrogen absorption isotherms were measured to determine the extent of the hydrogen capacity loss, and the total impurity (0,N) loading levels were determined by vacuum fusion mass spectrometry. The effect of common gaseous impurities on the tritium-removal characteristics was investigated to determine the nature of impurity-getter interaction for different impurities. Hydrogen capacity loss observed in the purifier was found to be due to bulk nitriding, probably due to irreversible transformation of intermetallic Laves-phase Zr(Fe,V)2 to Zr4Fe2 (O,N)x. The temporary getter deactivation observed during operation of the purifier may have been caused by impurities such as CO, CO2 and volatile organics. Metallic Fe (considered to be responsible for dissociative chemisorption of H2) was found only on unused samples. A gradual loss of metallic Fe from the getter surface could also have contributed to getter deactivation.
