Cesium vapor magnetometers

Generally, there are three types of instruments used to detect ordnance cesium vapor magnetometers, radio telemetry (common metal detectors). 

Generally, there are three types of instruments used to detect ordnance cesium vapor magnetometers, radio telemetry (common metal detectors), and pulse induction units. For many years, none could reliably distinguish between metal debris and ordnance items. Even size is difficult to tell because the signal is faint on a smaller, closer object and faint on a larger, deeper object. 

Of course, all of the described types of detectors can locate ordnance. Many UXO technicians still mag and flag using a hand-held cesium vapor magnetometer. If all anomalies are to be intrusively investigated, these work fairly weU. But they will not find brass or aluminum fuses and detonators, lead projectiles, or aluminum-cased bombs. On range impact areas, any loose fuses are likely to have detonated anyway. However, on impact areas the amount of shell fragments (frag) render the cesium... 

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