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Compact nuclear-driven semiconductor reactor/laser system
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DOI：10.1016/j.pnucene.2021.103939.png)
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摘要
En 中文
A model for a solid state nuclear pumped laser (SSNPL) has been developed. The laser model includes the spatial inhomogeneities of electron-hole pairs generated by fission products. A MCNP model was produced which transported the 20 most common U-235 fission fragments to dictate the 1-dimensional spatial inhomogeneity. The MCNP model included a variety of thicknesses to the layers involved. Core properties include a minimally critical cubic bare nuclear core which has dimensions less than one cubic meter on a side and laser thresholds in the sub-megawatt range. Laser efficiencies ranged from 2 to 5%. The SSNPL has the potential to be compact, low mass and efficient making it a promising space-based laser system.
Keyword:
Nuclear pumped lasers
Wide bandgap semiconductors
Gallium nitride
