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Fusion Science and Technology
Latest News
Remembering ANS member Gil Brown
Brown
The nuclear community is mourning the loss of Gilbert Brown, who passed away on July 11 at the age of 77 following a battle with cancer.
Brown, an American Nuclear Society Fellow and an ANS member for nearly 50 years, joined the faculty at Lowell Technological Institute—now the University of Massachusetts–Lowell—in 1973 and remained there for the rest of his career. He eventually became director of the UMass Lowell nuclear engineering program. After his retirement, he remained an emeritus professor at the university.
Sukesh Aghara, chair of the Nuclear Engineering Department Heads Organization, noted in an email to NEDHO members and others that “Gil was a relentless advocate for nuclear energy and a deeply respected member of our professional community. He was also a kind and generous friend—and one of the reasons I ended up at UMass Lowell. He served the university with great dedication. . . . Within NEDHO, Gil was a steady presence and served for many years as our treasurer. His contributions to nuclear engineering education and to this community will be dearly missed.”
T. Morisaki, S. Masuzaki, M. Kobayashi, R. Sakamoto, K. Tanaka, K. Narihara, H. Funaba, Y. Feng, F. Sardei, N. Ohyabu, A. Komori, O. Motojima, LHD Experimental Group, Y. Feng, F. Sardei
Fusion Science and Technology | Volume 50 | Number 2 | August 2006 | Pages 216-221
Technical Paper | Stellarators | doi.org/10.13182/FST06-A1238
Articles are hosted by Taylor and Francis Online.
Confinement improvement of ~20% from the ISS95 scaling law has been observed in the outwardly shifted configuration on the local island divertor (LID) experiment. In the configuration, highly peaked electron density profiles, together with peaked electron temperature profiles, are established with hydrogen pellet injection. A steep density gradient is formed in the internal region near the rational surface of q = 2 in the density decay phase after pellet injection. The plasma stored energy or central beta value increases and reaches its maximum as the density decreases, which is typical behavior of the reheat mode. Because of the increase in the central pressure, a large Shafranov shift is observed in the electron temperature and density profiles measured with a Thomson scattering system, suggesting the formation of the internal transport barrier during the LID discharge. Such better confinement has never been seen in inwardly shifted configurations. The reason for that is discussed taking the energy and particle transport into consideration. Recent results from a modeling study with the EMC3-EIRENE code are also presented.
