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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.”
R. Spencer, J. A. Harvey, N. W. Hill, L. W. Weston
Nuclear Science and Engineering | Volume 96 | Number 4 | August 1987 | Pages 318-329
Technical Paper | doi.org/10.13182/NSE87-A16395
Articles are hosted by Taylor and Francis Online.
The Bayesian method was applied to the simultaneous fitting of neutron transmission measurements on five thin and two thick samples of 240Pu to obtain the parameters of the very large resonance near 1 eV. The results of the analysis are E0 = 1.0564 ± 0.0006 Γγ, = 30.3 ± 0.3 meV, and Γn = 2.45 ± 0.02 meV. Some evidence in the data of a small deviation from the usual “weak binding” model for Doppler broadening of the theoretical resonance shape is presented. Transmission measurements on samples of 235U, 239Pu, and 240Pu also were made over the thermal energy region and their neutron total cross sections were derived. Fits of the form A + B to the cross-section data in the interval from 0.02 to 0.03 eV resulted in the values 690 ± 5, 1025 ± 6, and 284 ± 2 b for the 2200 m/s total cross sections of 235U, 239Pu, and 240Pu, respectively.
