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Nuclear Energy Conference & Expo (NECX)
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.”
Masao Yamanaka, Cheol Ho Pyeon, Takahiro Yagi, Tsuyoshi Misawa
Nuclear Science and Engineering | Volume 183 | Number 1 | May 2016 | Pages 96-106
Technical Paper | doi.org/10.13182/NSE15-51
Articles are hosted by Taylor and Francis Online.
Experiments on the thorium-loaded accelerator-driven system (ADS) were carried out at the Kyoto University Critical Assembly to reevaluate the accuracy of reactor physics parameters, including prompt neutron decay constants reaction rate distributions, subcriticality, and subcritical multiplication factor, and to reveal the dependency of these parameters on the external neutron source by varying the external neutron source of 14-MeV neutrons and spallation neutrons generated by 100-MeV protons. In preparation for thorium-loaded ADS experiments, renewed irradiation experiments are conducted with small and thin foils of thorium in the critical state to reevaluate the accuracy of the experimental analyses. In the ADS experiments, reactor physics parameters are found to be different in the same core when the external neutron source is injected separately with 14-MeV neutrons and spallation neutrons. By comparing with the calculated results, the significant impact of external neutron sources on the neutron characteristics of ADS is obtained in both the static and the kinetic experimental analyses.
