Dual energy computed tomography for explosive detection

  title={Dual energy computed tomography for explosive detection},
  author={Zhengrong Ying and Ram Naidu and Carl R. Crawford},
Single energy computed tomography (CT) scanners use measurements of densities to detect explosives in luggage. It is desirable to apply dual energy techniques to these CT scanners to obtain atomic number measurements to reduce false alarm rates. However, the direct application of existing dual energy techniques has practical problems, such as, approximation errors and lack of boundary constraints in dual energy decomposition, image artifacts, and x-ray spectral drifts. In this paper, we present… CONTINUE READING


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