According to the application requirements of reactor power supply in the lunar base and the special service environment of the moon,a lithium cooled fast reactor scheme was proposed.The nuclear characteristics of the scheme were studied by using MCNP code based on Monte Carlo meth-od.The core physics characteristics such as reactivity,burnup,flux and power distribution as well as the critical safety and shielding were calculated and analyzed in detail.The results show that the lithium cooled fast reactor scheme has the advantages of compact core structure,light weight,high heat conduction efficiency,high inherent safety,good power output performance and deep shutdown depth.It is suitable to be used as an energy source for lunar exploration activities.
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