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2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Perpetual Atomics, QSA Global produce Am fuel for nuclear space power
U.K.-based Perpetual Atomics and U.S.-based QSA Global claim to have achieved a major step forward in processing americium dioxide to fuel radioisotope power systems used in space missions. Using an industrially scalable process, the companies said they have turned americium into stable, large-scale ceramic pellets that can be directly integrated into sealed sources for radioisotope power systems, including radioisotope heater units (RHUs) and radioisotope thermoelectric generators (RTGs).
C. Wagemans, A. J. Deruytter
Nuclear Science and Engineering | Volume 60 | Number 1 | May 1976 | Pages 44-52
Technical Paper | doi.org/10.13182/NSE76-A26856
Articles are hosted by Taylor and Francis Online.
The neutron-induced fission cross section of 241Pu was measured at an 8-m-long flight path of the CBNM Linac from 50 to 0.01 eV, allowing a direct normalization to the 2200 m/sec reference cross section. The fission reaction rate and the neutron flux were determined simultaneously with surface barrier detectors placed on each side of back-to-back 241Pu and 10B layers. The fission cross section was calculated assuming a 1/v behavior of the 10B(n,α)7 Li cross section. Several fission and resonance integrals were calculated from the normalized σf versus energy curve and compared with other results. Also, the 20.44°C Westcott factor, gf, was calculated to be 1.046 ± 0.006.
