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2025 ANS Winter Conference & Expo
November 8–12, 2025
Washington, DC|Washington Hilton
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My story: Stanley Levinson—ANS member since 1983
Levinson early in his career and today.
As a member of the American Nuclear Society, I have been to many conferences. The International Conference on Probabilistic Safety Assessment and Analysis (PSA ’25), embedded in ANS Annual Meeting in Chicago in June, held special significance for me with the PSA ’25 opening plenary session recognizing the 50th anniversary of the publication of WASH-1400, which helped define my career. Reflecting on that milestone sent me back to 1975, when I was just an undergraduate student studying nuclear engineering at Rensselaer Polytechnic Institute (RPI) in Troy, N.Y., focusing on my mechanics, fluids, and thermodynamic classes as well as my first set of nuclear engineering classes. At that time—and many times since—the question “Why nuclear engineering?” was raised.
D. A. Bowers, J. R. Haines, M. D. McSmith, V. D. Lee
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1138-1142
Ignition Device | doi.org/10.13182/FST91-A29496
Articles are hosted by Taylor and Francis Online.
The Compact Ignition Tokamak (CIT) project, led by the Princeton Plasma Physics Laboratory, will employ a double null poloidal divertor as its primary means of energy and particle removal from the plasma. The fusion power handling capability of the divertor may represent the most severe constraint on the operating envelope for CIT. In addition to identifying this envelope based on divertor thermal performance, several studies aimed at improving this performance were examined. The reference divertor design concept employs small modules with pyrolytic graphite (PG) tiles. Studies of the sensitivity of the thermal performance of the passively cooled PG divertor design to separatrix sweeping parameters showed that a single pass sweep is near optimal for CIT conditions. An examination of the thermal performance of alternate materials found that some improvement (up to 20%) in the power handling capability of the divertor may be possible by using higher conductivity forms of PG, although the mechanical properties of these materials are not currently available. Alternate power handling approaches were examined and shown to have no significant improvement in thermal performance over the baseline passively cooled approach.