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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).
A. A. Harms, C. F. Forrest
Nuclear Science and Engineering | Volume 46 | Number 3 | December 1971 | Pages 408-413
Technical Paper | doi.org/10.13182/NSE71-A22377
Articles are hosted by Taylor and Francis Online.
The factors contributing to the bias introduced in the experimental determination of void fractions in liquid flow systems by methods of radiation diagnosis are being examined. It is shown that error bounds for the radiation transmittance and for the void fraction can be established for certain well-defined void variations. The general validity of the analytical results has been experimentally tested and confirmed. In addition, analytical criteria are derived which relate radiation attenuation and certain parameters of the radiation diagnostic facility to the dynamic voiding effects.
