Nuclear Engineering Division

Intermediate Voltage Electron Microscopy (IVEM)-Tandem Facility

The IVEM-Tandem Facility is a partner facility of the Nuclear Science User Facilities (NSUF) supported by the U.S. Department of Energy-Office of Nuclear Energy (DOE-NE) for in situ TEM studies of defect structures in materials under controlled ion irradiation and sample conditions.

 

The IVEM-Tandem facility is unique in the United States and is one of only five in the world. It is unique in its ability to image the changes in atomic structure and defect formation during irradiation at high magnification. The IVEM's important advantages include:

  • Real Time observation of defect formation and evolution during irradiation.
  • Well-controlled experimental conditions (constant specimen orientation and area, specimen temperature, ion type, ion energy, dose rate, dose, and applied strain).
  • Refine and validate computer model simulations of irradiation defect states.
  • High-dose ion damage is produced in hours, rather than the years such damage would require in a nuclear reactor, supporting studies of material response to high doses of particle (ion and neutron) irradiation.
  • In situ ion irradiation does not produce any radioactivity in samples.

Irradiation Defect Dynamics in Fe

Please wait until video loads completely.

Is JavaScript enabled on your browser? In your case the answer is

Closed Captioning Transcript

Live Closed captioning not available for this video.

Problems viewing the video? Contact

Watch this video on YouTube: Irradiation Defect Dynamics in Fe

In situ movie of defect formation, motion, and coalescence to form extended dislocation structures in Fe under ion irradiation. These structures lead to degradation of the mechanical properties in irradiated metals.

M.Hernandez-Mayoral, Z. Yao, M. Jenkins, M. Kirk, “Heavy-ion irradiations of Fe and Fe-Cr model alloys Part 2: Damage evolution in thin-foils at higher doses,” Phil Mag 88(21), 2881 (2008).

 

Last Modified: Thu, April 21, 2016 3:37 AM

Submit a proposal to use IVEM-Tandem

NSUF FY 2017 1st Call for Rapid Turnaround Experiments (RTE) Proposals due on September 29, 2016.

Interested in Availability?

IVEM-Tandem Calendar

Check the IVEM-Tandem Calendar for availability, and read instructions on how to submit a proposal.

Recent Events

Workshop on Transmission Electron Microscopy Characterization of Irradiation Induced Defects, Argonne National Laboratory, Sept. 3-5, 2014.

Contact Us

  • Questions about IVEM-Tandem?
    Email us at .