摘要
Helium-3(3He) implanted by solar wind in the lunar regolith is a valuable resource because of its potential as a fusion fuel.On the basis of the Apollo regolith samples,a linear relationship between 3He abundance and solar wind flux,optical maturity and TiO2 content has been presented.China successfully launched its first lunar exploration satellite Chang-E 1(CE-1) on October 24,2007.A multi-channeled microwave radiometer was aboard the satellite with the purpose of measuring microwave thermal emission from the lunar surface layer.From the multi-channel brightness temperature(Tb) observed by CE-1,the global distribution of the regolith thickness was inverted from the multi-channel Tb,and was used to evaluate the total amount of 3He per unit area in the lunar regolith.The global inventory of 3He was estimated as being 6.6×108 kg;3.7×108 kg for the lunar nearside and 2.9×108 kg for the lunar farside.
Helium-3 （3He） implanted by solar wind in the lunar regolith is a valuable resource because of its potential as a fusion fuel. On the basis of the Apollo regolith samples, a linear relationship between 3He abundance and solar wind flux, optical maturity and TiO2 content has been presented. China successfully launched its first lunar exploration satellite Chang-E 1 （CE-1） on October 24, 2007 A multi-channeled microwave radiometer was aboard the satellite with the purpose of measuring microwave thermal emission from the lunar surface layer. From the mutti-chaimel brightness temperature （Tb） observed by CE-1, the global distribution of the regolith thickness was inverted from the multi-channel Tb, and was used to evaluate the total amount of 3He per unit area in the lunar regolith. The global inventory of 3He was estimated as being 6.6×10^8kg; 3.7×10^8kg for the lunar nearside and 2.9×10^8kg for the lunar farside.
基金
supported in part by the National Natural Science Foundation of China (60971091,41071219)
the State Key Laboratory of Remote Sensing Science (2009KFJJ011)
