ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
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. Murakamia, V. Arunasalam, J.D. Bella, M.G. Bell, M. Bitter, W.R. Blanchard, F. Boody, D. Boydb, N. Bretz, C.E. Busha, J.D. Callenc, J.L. Cecchi, R.J. Colchina, J. Coonrod, S.L. Davis, D. Dimock, H.F. Dylla, P.C. Efthimion, L.C. Emersona, A.C. Englanda, H.P. Eubank, R. Fonck, E. Fredrickson, H.P. Furth, L.R. Grisham, S. von Goeler, R.J. Goldston, B. Grek, D.J. Grove, R.J. Hawryluk, H. Hendeld, K.W. Hill, R. Hulse, D. Johnson, L.C. Johnson, R. Kaita, J. Kamperschroer, S.M. Kaye, M. Kikuchie, S. Kilpatrick, H. Kugel, P.H. LaMarche, R. Little, C.H. Maa, D. Manos, D. Mansfield, M. McCarthy, R.T. McCann, D.C. McCune, K. McGuire, D.M. Meade, S.S. Medley, D.R. Mikkelsen, D. Mueller, E. Nieschmidtf, D.K. Owens, V.K. Parea, H. Park, B. Prichard, A. Ramsey, D.A. Rasmussena, A.L. Roquemore, P.H. Rutherford, N.R. Sauthoff, J. Schivell, J-L. Schwobg, S.D. Scott, S. Sesnic, M. Shimadae, J.E. Simpkinsa, J. Sinnis, F. Staufferb, B. Stratton, S. Suckewer, G.D. Tait, G. Taylor, F. Tenney, C.E. Thomasa, H.H. Towner, M. Ulrickson, R. Wieland, M. Williams, K-L. Wong, A. Wouters, H. Yamadah, S. Yoshikawa, K.M. Young, M.C Zarnstorff
Fusion Science and Technology | Volume 8 | Number 1 | July 1985 | Pages 657-663
Plasma Engineering | Proceedings of the Sixth Topical Meeting on the Technology of Fusion Energy (San Francisco, California, March 3-7, 1985) | doi.org/10.13182/FST85-A40115
Articles are hosted by Taylor and Francis Online.
The paper describes the present (end of February 1985) status of the plasma confinement studies in the TFTR tokamak with emphasis on those with neutral beam injection (NBI). Recent improvements in the device capabilities have substantially extended operating parameters: BT increased to 4.0 T, Ip to 2.0 MA, injection power (Pb) to 5 MW with H° or D° beams, to 5 × 1019 m−3 and Zeff reduced to 1.4. With ohmic heating (OH) alone, the previously established scaling for gross energy confinement time (τE ∝ ) has been confirmed at higher Ip and BT, and the maximum τE of 0.4 sec has been achieved. With NBI at Pb, substantially (by factor > 2) higher than POH, excellent power and particle accountability have been established. This suggests that the less-than-expected increase in stored energy with NBI is not due to problems of power delivery, but due to problems of confinement deterioration. τE is observed to scale approximately as Ip Pb−0.5 (independent of ), consistent with previous L-mode scalings. With NBI we have achieved the maximum τE of 0.2 s and the maximum Ti (o) of 4.4 keV in the normal operating regime, and even higher Ti(o) in the energetic-ion regime with low-ne and low Ip operation.