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Fusion Science and Technology
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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.”
Hiroyuki Shidara, Kazunobu Nagasaki, Kinzo Sakamoto, Hidetoshi Yukimoto, Masahiko Nakasuga, Fumimichi Sano, Katsumi Kondo, Tohru Mizuuchi, Hiroyuki Okada, Sakae Besshou, Shinji Kobayashi, Yoshito Manabe, Hayato Kawazome, Tasho Takamiya, Yoshinori Ohno, Hiroyasu Kubo, Yusuke Nishioka, Masao Iriguchi, Masashi Kaneko, Koichi Takahashi, Yohei Fukagawa, Yuya Morita, Masaki Yamada, Shingo Nakazawa, Shintaro Tsuboi, Shigeru Nishio, Victor Orlov, Alexander Pavelyev, Alexander Tolkachev, Victor Tribaldos, Tokuhiro Obiki
Fusion Science and Technology | Volume 45 | Number 1 | January 2004 | Pages 41-48
Technical Paper | doi.org/10.13182/FST04-A424
Articles are hosted by Taylor and Francis Online.
A 70-GHz electron cyclotron resonance heating (ECRH) system has been constructed in a helical-axis heliotron device, Heliotron J, in order to realize localized heating and current drive experiments. Since the Heliotron J plasma has a three-dimensional complex shape, the ECRH system is designed to satisfy the requirement of wide steering capability in both the toroidal and poloidal directions. The low-power transmission test shows that the beam radius of the focused Gaussian beam is 22 mm at the magnetic axis, which is small enough compared to the averaged minor plasma radius (170 mm), and the launching system covers a wide toroidal steering range from perpendicular to tangential injection by replacing the steering plane mirror. Since these characteristics satisfy the condition for controlling the power localization in the three-dimensional helical-axis configuration, it is possible to explore the on- and off-axis heating over most of the plasma radius (0 < r/a < 0.7) and the electron cyclotron current drive. In the high-power transmission test, the transmission efficiency of the 20-m corrugated waveguide is 92%, and the available output power to the vacuum vessel is up to 0.4 MW. Plasma production and heating are successfully performed using this ECRH system.
