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Front-end nuclear fuel supply cooperation: Turning allied interdependence into strategic advantage
The global nuclear revival, which is fueled by unprecedented demand for firm, affordable, dispatchable power for artificial intelligence and data center build-out, energy security imperatives, and climate commitments, has exposed a structural reality of the Western fuel cycle: No single allied nation currently possesses the full suite of front-end capabilities. From mining through conversion, enrichment, fabrication, and the emerging deconversion and metallization steps required for reactor fuels, capability is distributed across Canada, France, Japan, the United Kingdom, and the United States (collectively, the “Sapporo Five”), as well as a small group of close partners.
R. E. Slovacek, D. S. Cramer, E. B. Bean, J. R. Valentine, R. W. Hockenbury, R. C. Block
Nuclear Science and Engineering | Volume 62 | Number 3 | March 1977 | Pages 455-462
Technical Paper | doi.org/10.13182/NSE77-A26984
Articles are hosted by Taylor and Francis Online.
The 238U(n,f) cross section has been measured from 3 eV to ≃ 100 keV with the Rensselaer Intense Neutron Spectrometer, a 75-ton lead slowing down spectrometer at the Gaerttner Laboratory at Rensselaer Polytechnic Institute. Four fission ionization chambers containing a total of ≃ 0.8 g of 238U (4.1 ppm 235U) were used for the measurements. The fission widths of the 6.67-, 20.9-, and 36.8-eV resonances were measured as (10 ± 1), (58 ± 9), and (12 ±2) neV, respectively. By combining these fission results and published resonance parameters, the 238U thermal fission cross-section contribution from positive energy resonances was determined to be (2.7 ± 0.3) µb. The resonance fission integral from 0.4 eV to 100 keV was determined to be (1.30 ±0.15) mb.
