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Grant W. Helmreich

Government of the United States of America - Oak Ridge National Laboratory

1 Bethel Valley Road, P.O. Box 2008, Mail Stop 608

Room B-106, Building 5700

Oak Ridge, TN 37831

United States

  • Government of the United States of America - Oak Ridge National Laboratory

SCHOLARLY PAPERS

6

DOWNLOADS

226

TOTAL CITATIONS

0

Scholarly Papers (6)

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1.

Physicochemical evolution of uranium nitride kernel microstructurewith varying carbon distribution for advanced TRISO fuel forms

Number of pages: 24 Posted: 27 Nov 2025
Bryan Conry, Grant W. Helmreich and Matthew Kurley
University of Florida, Government of the United States of America - Oak Ridge National Laboratory and Government of the United States of America - Oak Ridge National Laboratory
Downloads 84 (777,583)

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nuclear fuel, TRISO, Uranium nitride, Volumetric segmentation, X-ray computed tomography

2.

ROADRUNNER Uranium Nitride MiniFuel Accelerated Burnup Testing: Irradiation Design, Fuel Fabrication, and Pre-irradiation Characterization

Number of pages: 52 Posted: 31 Dec 2025
Denise Adorno-Lopes, Annabelle Le Coq, Adrian M. Schrell, Julian Valdez, Peter Doyle, Ryan Heldt, Grant W. Helmreich, Nathan Capps, Jason Harp, Kory Linton, Joshua T. White and Elizabeth S. Sooby
Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, University of Texas at San Antonio, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Los Alamos National Laboratory and University of Texas at San Antonio
Downloads 65 (916,100)

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UN, MiniFuel, Accelerated Burnup, Accelerated Fuel Qualification

3.

Structure–Property Relations in Graphitic Pebbles for Nuclear Applications

Number of pages: 28 Posted: 24 Jul 2023
William F. Cureton, Tyler J. Gerczak, Grant W. Helmreich, John D. Hunn, Gerald E. Jellision Jr., Hsin Wang, Stephanie M. Curlin and Ryan N. Latta
Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory and affiliation not provided to SSRN
Downloads 23 (1,424,331)

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graphitic pebbles, nuclear matrix graphite, thermophysical properties, microstructure

4.

Expanded Method for the Determination of Burnup in Nuclear Fuels Using Multiple Neodymium Isotopes

Number of pages: 9 Posted: 25 Jun 2025
Grant W. Helmreich, John Hunn, Fred Montgomery, Darren Skitt, Tamara Keever, Benjamin Roach, Kayron Rogers and James Sterbentz
Government of the United States of America - Oak Ridge National Laboratory, affiliation not provided to SSRN, Government of the United States of America - Oak Ridge National Laboratory, Westinghouse Electric Company LLC, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory, Government of the United States of America - Oak Ridge National Laboratory and Government of the United States of America - Idaho National Laboratory
Downloads 19 (1,481,165)

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TRISO, Burnup Determination, Analytical Chemistry

5.

Impact of Residual Buffer on IPyC Density Measurement for TRISO Fuels and Removal by Microwave Digestion

Number of pages: 25 Posted: 13 Mar 2026
Grant W. Helmreich, Daniel R. Brown, Taylor G. Duffin, John D. Hunn and Tyler J. Gerczak
Government of the United States of America - Oak Ridge National Laboratory, affiliation not provided to SSRN, affiliation not provided to SSRN, Government of the United States of America - Oak Ridge National Laboratory and Government of the United States of America - Oak Ridge National Laboratory
Downloads 18 (1,481,165)

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TRISO, density column, IPyC, buffer, microwave digestion

6.

Methods development towards automated, physics-informed, quantitative quality control of TRISO-SiC

Number of pages: 22 Posted: 22 Jan 2026
Bryan Conry, Grant W. Helmreich and Tyler J. Gerczak
University of Florida, Government of the United States of America - Oak Ridge National Laboratory and Government of the United States of America - Oak Ridge National Laboratory
Downloads 17 (1,481,165)

Abstract:

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Computer Vision, Electron Backscatter Diffraction (EBSD), Fuel Development, microstructure, Tristructural-isotropic (TRISO), U-Net