ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
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.”
V. O. Uotinen, J. H. Lauby, L. C. Schmid, W. P. Stinson
Nuclear Technology | Volume 15 | Number 2 | August 1972 | Pages 257-271
Technical Paper | Plutonium Utilization in Commercial Power Reactors / Reactor | doi.org/10.13182/NT72-A31150
Articles are hosted by Taylor and Francis Online.
Results of experiments conducted in the Critical Approach Facility are presented for a total of 48 lattices of plutonium-enriched rods. Five kinds of UO2-PuO2 rods ranging in PuO2 enrichment from 1.5 to 4.0 wt%, and three kinds of Al-Pu rods ranging in plutonium enrichment from 1.8 to 5.0 wt%, were used in the experiments. The lattices covered a broad range of water-to-rod volume ratios. Parameters reported for each lattice are: the number of rods required for a critical loading, the relaxation length measured in an exponential loading, the critical buckling, and reflector savings. For five of the lattices results are also reported of the worth of central absorber rods of boron and hafnium. The results of approach-to-critical experiments were verified by comparing them with the results of critical measurements conducted in three lattices.