Advanced Quantitative Metrology and Characterization for Manufacturing

Executive Summary

We will enable new qualification processes for manufactured components by discovering synergistic modes of characterization appropriate for geometrically and compositionally complex structures formed by both traditional and advanced manufacturing methods. These quantitative three-dimensional characterization capabilities are driven by new model-based requirements that must replace empirically derived legacy requirements.

Publications, Presentations, and Patents

Hardy, Anthony, James Hall, Kyle M. Champley, and Nerine J. Cherepy. 2021. “Improved x-ray CT feature identification with complementary fast neutron CT.” In Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIII. Vol. 11838. SPIE. https://doi.org/10.1117/12.2595919 LLNL-PROC-824740.

Oksuz, Ibrahim, Matt Bisbee, Nerine J. Cherepy, Andrew Townsend, James Hall, Joseph Nicolino, Saphon Hok, and Lei Cao. 2021. “Fast Neutron Computed Tomography of Multi-Material Complex Objects.” In Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIII. Vol. 11838. SPIE. https://doi.org/10.1117/12.2595862. LLNL-CONF-827020.

Cherepy, Nerine, Zachary M. Seeley, Dan J. Schneberk, Colby J. McNamee, Cary I. Pincus, Thomas J. Rudzik, Ross A. Osborne, Ian R. Phillips, Joseph A. Nicolino, James Hall, Andrew P. Townsend, and Steve. A. Payne. 2021. “Lens-coupled MeV x-radiography with transparent ceramic GLO scintillators.” In Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIII. Vol. 11838. SPIE. LLNL-PROC-825973.

Chahid, Younes, Radu Racasan, Luca Pagani, Andrew Townsend, Alexander Liu, Paul Bills, and Liam Blunt. 2021. “Parametrically Designed Surface Topography on CAD Models of Additively Manufactured Lattice Structures for Improved Design Validation.” Additive Manufacturing 37 (January): 101731. https://doi.org/10.1016/j.addma.2020.101731. LLNL-JRNL-812397.

Cherepy, N., et al. 2020. "Scintillators and Detectors for MeV X-ray and Neutron Imaging." SPIE Optical Engineering + Applications Proceedings, Vol. 11494, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII: 114940N. LLNL-PROC-814596.

Oksuz, I., et al. 2020. "Characterization of a Reactor-Based Fast Neutron Beam Facility for Fast Neutron Imaging." SPIE Optical Engineering + Applications (online). doi: 10.1117/12.2569964. LLNL-PROC-814265.