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Geiger counters are so last summer. Lasers can detect radioactive material too, y'know

atropine blackout

With current technology (and nothing dramatic on the horizon as far as I know), the powerful mid-IR laser - say in the 3..5 um region - needed for a longer usable range is a fairly non-trivial proposition.

An interesting paper but, as other folks have noted, there may well be an awkward gap between the model and reality.

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