Zhang, Zhan

X-ray Radiography and Tomography NDE

X-ray Radiography

  • Low energy X-ray imaging for historical paper watermarks
  • Quality control for PCB and IC chips in cryogenic environment
  • Field inspection for joints of gas plastic pipelines (HDPE and MDPE)

High Resolution Computed Tomography

  • Iterative reconstruction algorithms for limited angle scan and reduce artifacts
  • Digital metrology and defect characterization for industrial applications
  • Data fusion using multi-modal NDE technologies with THz and UT

Materials Characterization

  • High energy X-ray diffraction (HEXRD) analysis for residual stress
  • Diffraction contrast tomography (DCT) for crystallography in 3D grains

New Modality of X-ray Imaging

  • X-ray phase contrast imaging and tomography
  • Dual-energy and spectral computed tomography (CT)
Zhang xray research
X-ray imaging systems: 2D radiography and computed tomography X-ray imaging simulation and high energy diffraction analysis

Zhan Zhang

Zhan Zhang

Associate Scientist
275 Applied Sciences Complex 2


  • X-ray imaging NDE
    Digital Radiography and Computed Tomography
  • CT iterative reconstruction methods
  • X-ray imaging simulation and modeling
  • High energy X-ray diffraction analysis


  • X-ray Imaging, Computed Tomography, Materials Characterization, High Resolution

Synergistic Activities

  • Iowa section chair, American Society for Nondestructive Testing (ASNT)
  • E07 Committee member, American Society for Testing and Materials (ASTM)
  • Active Reviewer for Journal of Nondestructive Evaluation, and ASME Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems