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.”
Shinji Ebara, Takehiko Yokomine, Akihiko Shimizu
Fusion Science and Technology | Volume 50 | Number 4 | November 2006 | Pages 538-545
Technical Paper | doi.org/10.13182/FST06-A1277
Articles are hosted by Taylor and Francis Online.
So as to make the most of an available irradiation test volume of the gas-cooled high-flux test module of the International Fusion Materials Irradiation Facility, the vessel of the test module is supposed to have a rectangular shape, into which specimens can be packed spatially efficiently. There is a large pressure difference of several atmospheric pressures between the inside and the outside of the vessel because gaseous helium flows inside the vessel to control the temperature of the specimens and a low-vacuum condition is kept outside the vessel for safety reasons. This pressure difference is assumed to cause readily the deformation of the vessel wall. Even a slight deformation should be taken seriously because the deformation of the vessel noticeably affects the coolant flow, that is, cooling performance. In this study, we performed elastoplastic finite element analysis for two rectangular vessels of the high-flux test module proposed by FZK and Kyushu University. In addition to the material nonlinearity, by taking into account the geometrical nonlinearity and thermal stress, we could obtain detailed results such as relations between the deformations and the pressure differences.