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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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NNSA awards BWXT $1.5B defense fuels contract
The Department of Energy’s National Nuclear Security Administration has awarded BWX Technologies a contract valued at $1.5 billion to build a Domestic Uranium Enrichment Centrifuge Experiment (DUECE) pilot plant in Tennessee in support of the administration’s efforts to build out a domestic supply of unobligated enriched uranium for defense-related nuclear fuel.
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.
