About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Neutron Scattering for Engineering Materials
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| Presentation Title |
Current Residual Stress Neutron Diffractometer at the High Flux Isotope Reactor (HIDRA) and Proposed Upcoming Upgrades |
| Author(s) |
Jeffrey R. Bunn, Christopher Fancher, Ray Gregory, Doug Kyle, Cody Pratt, Cassie Scully, Andrew Payzant |
| On-Site Speaker (Planned) |
Jeffrey R. Bunn |
| Abstract Scope |
The High Intensity Diffractometer for Residual Stress Analysis (HIDRA) at the High Flux Isotope Reactor at Oak Ridge National Laboratory has operated with an upgraded 2D detector and improved software for four years. Ongoing upgrades to the neutron optics leverage advanced manufacturing, including additive techniques. A new data acquisition system allows users to visualize the measurement grid and maintain alignment within a sample coordinate system, offering capabilities not available on comparable instruments. These developments also supported the creation of PyRS, a Python based open source tool for slicing reactor source NeXus data. With the upcoming beryllium reflector replacement at the reactor, further enhancements to HIDRA are planned. These an advanced robotic sample manipulation stage. In combination with the existing acquisition system, this will enable full strain tensor mapping and spatial determination of pole figures in engineering materials. This presentation will summarize HIDRA’s current capabilities and describe plans for future improvements. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Joining, Additive Manufacturing |