If the sensor is further away, it might be easier to maintain, have a longer lifetime, and could even be re-aimed to cover a wider area or identify where a specific hotspot is.
A small capsule of radioactive cesium-137 was lost during transit, and the search for it was difficult due to the distance the truck carrying the device had travelled and the size of the capsule.
"When you consider the challenge of finding an object smaller than a 10-cent coin along a 1,400-kilometer stretch of Great Northern Highway, it is a tremendous result."
If the sensor is further away, it might be easier to maintain, have a longer lifetime, and could even be re-aimed to cover a wider area or identify where a specific hotspot is.
Depending on how l