"Neutron beam observed 13 times at crippled Fukushima nuke plant" - "TEPCO said the neutron beam measured about 1.5 kilometers southwest of the plant's No. 1 and 2 reactors over three days from March 13 and is equivalent to 0.01 to 0.02 uSv/h and that this is not a dangerous level."
"Neutron beam observed 13 times at crippled Fukushima nuke plant" - "TEPCO said the neutron beam measured about 1.5 kilometers southwest of the plant's No. 1 and 2 reactors over three days from March 13 and is equivalent to 0.01 to 0.02 uSv/h and that this is not a dangerous level."