I'm not gonna pretend to be an expert on reactor safety, but I do note that the article mentions that a pebble bed reactor is kept inside a big concrete building designed to withstand aircraft crashes.
I assume this means that an aircraft crash involving a pebble-bed reactor _not_ inside a big concrete building could be bad. The second layer of containment (two-meter thick walls) also sounds pretty difficult to make fly.
I assume this means that an aircraft crash involving a pebble-bed reactor _not_ inside a big concrete building could be bad. The second layer of containment (two-meter thick walls) also sounds pretty difficult to make fly.