From Northwestern University Center for Atom-Probe Tomography
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Welcome to the Seidman Research Group

Northwestern University Center for Atom-Probe Tomography (NUCAPT).


Al-Sc-RE precipitates

Transmission Electron Microscopy (TEM) image of a Ni3Al precipitate in a Ni-rich matrix. As the alloy is aged, the precipitates will evolve from a spherical morphology to a cuboidal morphology. TEM and LEAP are used to study the temporal evolution of this alloy.

(Courtesy: Liza Plotnikov)


  • A short video describes NUCAPT and the new data management and publication service, developed in collaboration with CHiMAD-MDF.
  • The new NUCAPT data server manager is online now and can be accessed at NUCAPT Data Server
  • Our LEAP tomograph has been upgraded in 2017 to a LEAP5000XS configuration (CAMECA), featuring a single-atom position-sensitive time-of-flight detector with approximately 80% detection efficiency, compared to 50% efficiency with our old LEAP4000 instrument before the upgrade.
  • Congratulations to both Divya Jain and Sumit Bhattacharya, on the successful defense of their thesis. Good luck, Doctors!
  • The Seidman Group welcomes Francesca Long, a first year graduate student in the department.
  • The Seidman Group welcomes visiting student Dong An from Southeast University.


Recent articles from the Seidman group