> don't be shy about anything else you see me missing I would think we need to clarify the theoretical and practical limits of the detectors. Depending on how

> don't be shy about anything else you see me missing I would think we need to clarify the theoretical and practical limits of the detectors. Depending on how the sensors work the search might look very different. If you can get some expensive lab gear and distinguish the radiation of this source from the background from hundreds of kilometers then you only need to measure at a few strategic locations to triangulate it. If you need to get a sensor within ten meters from the source before it can be detected then you need to lug the sensor around on the ground. That would be too low for a manned aircraft to fly at. How fast does the sensor detect? If the sensor can detect up to 100 meters but need 5 second to measure that will make the search much different than if it can measure with 500hz for the same distance. Do we think we can sense only the source or also the places the source has been at? Does it leave a detectable trace? What of these is hard limit by physics (nobody, for no amount of money can build a better detector) vs limit of resources (it would be very expensive to do x)? If it is a limit of resources how does detector quality scales with resources spent? Without having solid answers to these it would be foolish to jump at designing a search method.