It’s quite NOT a “dirty bomb” by definition.
Big blast of killing radiation followed by quick dissipation.
“Unlike the original nuclear bomb and its lingering radiation affect, the nuclear pollution resulting from the use of a destructive radiation neutron bomb disappears within a short time.”
http://i-hls.com/2013/03/neutron-weapons-sam-cohens-sane-nuclear-weapon/
Thank you. It was conceived as a device to kill by a massive burst of radiation to kill armies in tanks and other generally protected areas. I’m glad we are in agreement now.