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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Latest News
NRC introduces microreactor regulatory framework
The Nuclear Regulatory Commission has released a new licensing framework for microreactors and similar reactor designs that may provide a more suitable pathway for applicants with simpler technologies.
The proposed rule—known as Part 57—is the latest to come out of the NRC’s rules review and overhaul stemming from the ADVANCE Act and 2025 nuclear-related executive orders. It is also the latest framework developed for advanced reactor designs shifting away from light water reactor technology, such as the Part 53 rule finalized in March.
Technical Session|Technology Research and Development
Thursday, April 30, 2026|1:00–2:00PM EDT|Room 302/303/304
Session Chair:
Vincent Varouh
Alternate Chair:
Tyler Steiner (NASA GRC)
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Binder Jet Additive Manufacturing of Silicon Germanium Thermoelectric Materials
1:00–1:06PM EDT
Luke Hansen (Univ. Tennessee, Knoxville), David Hoelzer (ORNL), Trevor G. Aguirre (ORNL), Hsin Wang (ORNL), Brad Johnson (ORNL)
Paper
A Model-Based Engineering Toolbox for Thermoelectric Design in Radioisotope Power Generation
1:06–1:12PM EDT
Aniruddha Ray (RGS Development)
Presented by Maarten Den Heijer (RGS Development)
Three Processing Methods to Produce SiGe for Radioisotope Thermoelectric Generators (RTG)
1:12–1:18PM EDT
Hsin Wang (ORNL), Andrew F. May (ORNL), David T. Hoelzer (ORNL), Holden Hyer (ORNL), Mike Zach (ORNL), Thomas Muth (ORNL), Roger G. Miller (ORNL), Brad R. Johnson (ORNL)
Validation Effort and Sensitivity Study for a Skutterudite Thermoelectric Device
1:18–1:24PM EDT
Trevor Parker (ORNL), Nolan Goth (ORNL), Hsin Wang (ORNL), Hugo Bouteiller (ORNL), Brad Johnson (ORNL)
Technology Readiness Assessment for Stirling Power Convertor
1:24–1:30PM EDT
Young Lee (NASA JPL), Allen Guzik (NASA Glenn Research Center), Ashitey Trebi-Ollennu (NASA JPL), Vladimir Jovovic (NASA JPL), Jean-Pierre Fleurial (NASA JPL), John Elliott (NASA JPL), Geff Ottman (APL), Stephen Izon (APL), Mitchell Rodriguez (NASA Marshall Space Flight Center), Wsam Gazi (NASA Goddard Space Flight Center), Scott Wilson (NASA Glenn Research Center), Ed Lewandowski (NASA Glenn Research Center), Joseph Giglio (INL), Dan Kelly (APL), Gina Dugala (NASA Glenn Research Center), Salvatore Oriti (NASA Glenn Research Center)
Compression Testing of SiGe Thermoelectric Generators for Conductive Applications
1:30–1:36PM EDT
Spencer Schaiper (Univ. Dayton), Sam Mohler (Univ. Dayton), Antoine Gagne (Univ. Dayton), Boyd Tolson (Univ. Dayton), Zachary Adamson (Air Force Research Laboratory), Rydge Mulford (Univ. Dayton)
A Test of Record: SiGe 18 Couple Module Test Fixture
1:36–1:42PM EDT
Greg Mulderink (Teledyne Energy Systems), Jeffrey Kutsch (Teledyne Energy Systems), Lynda L. Renomeron (Teledyne Energy Systems)
Manufacturing Challenges in Re-Establishing NextGen SiGe Unicouple Production – Tooling
1:42–1:48PM EDT
Jeffrey Kutsch (Teledyne Energy Systems), Greg Mulderink (Teledyne Energy Systems), Lynda L. Renomeron (Teledyne Energy Systems)
Multilayered Metal Insulation (MLMI) Manufacturing for Radioisotope Power System Designs
1:48–1:54PM EDT
Timothy Hall (Faraday Technology Inc.), Sean Torrez (PSI Inc), Alexander Mednick (PSI Inc)
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