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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. De Matteis, R. Simonini
Nuclear Science and Engineering | Volume 67 | Number 3 | September 1978 | Pages 309-316
Technical Paper | doi.org/10.13182/NSE78-A27251
Articles are hosted by Taylor and Francis Online.
An energy sampling method for Monte Carlo integration of the adjoint photon transport equation is described. The method is based on a biasing scheme, making the statistical weight associated with the adjoint transport simulating particle depend only on current energy, without past history memory. Events considered are Compton scattering and absorption. The efficiency of the algorithm presented is investigated through numerical comparisons with other known sampling procedures.
