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September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.”
P.C. Kalambokas, A. F. Henry
Nuclear Science and Engineering | Volume 61 | Number 2 | October 1976 | Pages 181-194
Technical Paper | doi.org/10.13182/NSE76-A27351
Articles are hosted by Taylor and Francis Online.
A general relationship between two-group fluxes and normal currents on the surface of a core surrounded by a homogeneous reflector is derived. The relationship is an integral one derived directly from the group diffusion equations for the homogeneous reflector material and hence depending only on group parameters associated with the reflector material. Approximate homogeneous, algebraic boundary conditions relating group fluxes to group currents at the core-reflector interface are then derived, and these are applied to three sizes of pressurized water reactors (PWRs). Application to a large PWR at the interface between core shroud and reflector yields particularly excellent results for criticality and flux shapes in the core. The savings in computer running time over that required if the reflector is accounted for explicitly is ∼40%.
