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.”
P. Staples, J. J. Egan, G. H. R. Kegel, A. Mittler
Nuclear Science and Engineering | Volume 126 | Number 2 | June 1997 | Pages 168-175
Technical Paper | doi.org/10.13182/NSE97-A24470
Articles are hosted by Taylor and Francis Online.
The neutron-induced gamma-ray production cross section for the first excited state of l4N was measured for neutron energies from 2.65 to 3.55 MeV at intervals of 100 keV. An angular distribution from 45 to 135 deg in 10-deg steps was measured at an incident neutron energy of 3.45 MeV. Neutrons were produced by the 7Li(p,n)7Be reaction using a pulsed proton beam from the University of Massachusetts Lowell 5.5-MV Van de Graaff accelerator. The interaction of neutrons from the 7Li(p,n)7Be* reaction in the sample was taken into account. A calibrated 235U fission chamber was used to measure the absolute incident neutron fluence. Gamma rays were detected by a Ge(Li) crystal surrounded by a NaI(Tl) anti-Compton annulus. This spectrometer was used in conjunction with the pulsed-beam time-of-flight technique to attenuate background. The measured cross section compares favorably with other experimental data and with the ENDF/B-VI evaluation.
