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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).
Wm. H. Reed
Nuclear Science and Engineering | Volume 49 | Number 1 | September 1972 | Pages 10-19
Technical Paper | doi.org/10.13182/NSE72-A22523
Articles are hosted by Taylor and Francis Online.
A method for obtaining spherical harmonic or PL solutions of the transport equation from discrete ordinate or SNcodes is developed in this paper. This method depends on a new interpretation of the method as a projection method. The technique of converting SNsolutions into spherical harmonic solutions is discussed in detail for x-y geometry, and numerical results are presented. The method of this paper differs from earlier methods in that SN solutions can be converted to PN-1 solutions.
