Imaging Nuclear gamma spectroscopy: Noise reduction 10-2 & pixel 5 × 5 km

Gamma flux at Moon surface ~10 g cm2s-1 Eγ >100 keV
High-end ETCC (detection area 10cm2 ;same as Ge,) PSF 3° (3 km)
3 year observation ∼1010γ => 104γ / 5 × 5 km
Distinction of Mineral and water in and out of Crater ∼10 km (radius)

RIs generated by Cosmic ray Nuclear Reaction

Mineral Map in Moon by KAGUYA (JAXA) Non imaging Ge detector dE/E ~0.5%@1MeV,pixel 100x100km