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Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
M. Hirata, S. Nagashima, T. Cho, J. Kohagura, M. Yoshida, H. Ito, S. Tokioka, T. Numakura, R. Minami, Y. Nakashima, T. Kondoh, K. Yatsu, S. Miyoshi
Fusion Science and Technology | Volume 43 | Number 1 | January 2003 | Pages 262-264
Diagnostics | doi.org/10.13182/FST03-A11963608
Articles are hosted by Taylor and Francis Online.
For the purpose of observations of the absolute values of ion-end-loss currents in open-field plasma devices including the GAMMA 10 tandem mirror, a newly developed electrostatic ion-current detector is proposed on the basis of a “self-collection” principle for secondary-electron emission from a metal collector. The newly developed ion-current detector is constructed with a set of parallelly placed metal plates with respect to lines of ambient magnetic forces in an open-ended device. One of the most essential characteristic properties of the proposed detector is based on the physics principle of a “self-collection” mechanism due to E×B drifts for secondary electrons impinged by ion-current collections from the metal-plate collector; that is, the secondary electrons are returned back into the collector through E×B drifts by the use of no further additional magnetic systems except the ambient open-ended fields B. The proposed idea is tested in an ion-beam line along with an additional set of the Helmholtz coil for producing and mocking up open-ended fields for simulating the GAMMA10 magnetic fields. The characterization experimental data in the ion-beam line give good agreement with computer-simulated trajectory-calculation results. The novel ion-current detector is preliminarily and usefully applied to the GAMMA10 plasma experiments.