There is already a similair tehnique called muography which uses muons and has already been used for scanning the pyramids in Gizah and currently for the Mayan

There is already a similair tehnique called muography which uses muons and has already been used for scanning the pyramids in Gizah and currently for the Mayan pyramids in Chichen Itza amongst others. Pretty SF stuff! https://en.m.wikipedia.org/wiki/Muon_tomography https://en.m.wikipedia.org/wiki/Muon_tomography