Japan quakes

[[XC] riptide]

What about a lead enclose to protect the robot? Or can lead not stop that amount of radiation?

Gamma radiation will breeze through lead unless its seriously thick. You'd want a robot with a couple of metres of lead shielding to be secure for its electronics. Gamma radiation will flip bits like burgers at McDonalds. Or else use just a 'dumb' robot with wiring and all electronics cable attached with an operator offsite. You'd basically want a wire controlled version of a tank with a hydraulic acting arm I'd imagine Even then I suspect high levels of radiation would screw something up like the oil.