In particular, metal detectors are commonly used in the application of nuclear detection and they are also commonly used to inspect containerized cargo shipments. In general, a metal detector is one of the most sensitive and efficient inspection technologies to measure the radio frequency (RF) magnetic flux of the metal. For example, the inspection methods include some common technologies for detection and quantification of the presence of undesirable material, such as nuclear material, nuclear weapon, explosive materials, explosive remnants and other dangerous substances, like the border inspection system (BIS), the X-ray scanning system, the thermal imaging system, the eddy current inspection system, the laser-induced plasma spectroscopy and others. In order to meet the high requirements for the security of material and energy, such as oil, gas and nuclear energy, many kinds of inspection methods for the security of material and energy have been developed. Shrinkieslives?The field of the invention relates generally to metal detectors and, more particularly, to metal detectors using a time domain reflectometry system.
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