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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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DTRA’s advancements in nuclear and radiological detection
A new, more complex nuclear age has begun. Echoing the tensions of the Cold War amid rapidly evolving nuclear and radiological threats, preparedness in the modern age is a contest of scientific innovation. The Research and Development Directorate (RD) at the Defense Threat Reduction Agency (DTRA) is charged with winning this contest.
Technical Session|Radioisotope Power Systems
Tuesday, May 6, 2025|1:00–2:40PM CDT|Salon EF (Marriott)
Session Chair:
Colleen Van Lear (NASA Glenn Research Center)
Track Organizer:
Harold Gerrish (NASA Marshall Space Flight Center)
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Stirling Convertor Launch Vibration Modeling
1:00–1:25PM CDT
Brett N. Shapiro (Johns Hopkins Univ. APL), Dennis J. Duven (Johns Hopkins Univ. APL), Martin E. Fraeman (Johns Hopkins Univ. APL), David M. Reed (Johns Hopkins Univ. APL)
Paper
Development of System Identification Testing Method for Stirling Convertors
1:25–1:50PM CDT
Donguk Max Yang (NASA)
Efficient Computational Method for Three-Dimensional Thermally- and Electrically-Coupled Performance Prediction of GPHS-RTG
1:50–2:15PM CDT
Carter D. Gassler (Univ. Pittsburgh), Michael J. Durka (Univ. Pittsburgh), Natan P. Herzog (Univ. Pittsburgh), Matthew M. Barry (Univ. Pittsburgh)
Thermal/Fluidic Model of Heat and CO Transport in the Next-Generation RTG Under Storage Conditions
2:15–2:35PM CDT
Michael J. Durka (NASA Jet Propulsion Laboratory), Jean-Pierre Fleurial (NASA Jet Propulsion Laboratory)
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