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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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NNSA furloughs 1,400 employees, pays contractors until end of month
After nearly three weeks of a government shutdown, the Department of Energy’s National Nuclear Security Administration has furloughed 1,400 employees and has retained 400 as essential employees who will continue working without pay.
Dennis G. Vasilik, Richard L. Murri, George P. Fisher
Nuclear Technology | Volume 14 | Number 3 | June 1972 | Pages 279-283
Technical Paper | Instrument | doi.org/10.13182/NT72-A31117
Articles are hosted by Taylor and Francis Online.
Neutron radiography studies have been conducted using an accelerator source of 14.3 ± 0.3 MeV neutrons and a water moderator. The yield of the accelerator was 6.18 × 101 n/sec. The peak thermal-neutron flux of the system was measured to be 6.87 × 107 n/(cm2 sec) at 5.1 cm from the source. A cadmium ratio of 3.4 was measured at this position. A theoretical two-group analysis of the thermal-neutron flux distribution was also performed. The experimental data verified the theoretical results. Neutron multiplication experiments were also conducted by bombarding a 238U target surrounded by the water moderator. It was experimentally determined that 2.5 cm of 238U yielded a maximum multiplication factor of 2.5.
