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Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
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Nuclear Science and Engineering
August 2026
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Latest News
Proposed rules on ALARA, reactor licensing revamp introduced by NRC
A proposed rule from the Nuclear Regulatory Commission would update radiation protection regulations and remove “as low as reasonably achievable” (ALARA) language without changing specific radiation exposure limits that are based on the linear no-threshold (LNT) model of low-dose radiation health effects. A second proposed rule would reform reactor licensing, safety oversight, and siting practices with changes the agency said are the most significant in years.
The NRC unveiled the two proposed rules on July 1 and published them in the ADAMS public document library the same day. The rules have not, at this writing, been published in the Federal Register, but once they are, each rule will be open for public comment for 45 days.
2024 International Congress on Advances in Nuclear Power Plants (ICAPP)
Technical Session|Nuclear Power Plants
Monday, June 17, 2024|1:00–2:45PM PDT|Palm C
Session Chair:
Jacopo Buongiorno (Massachusetts Institute of Technology)
Alternate Chair:
Ling Zou (ANL)
Session Organizers:
Koroush Shirvan (MIT)
Kazuaki Kito (Hitachi-GE Nuclear Energy)
Kyoung-Ho Kang (KAERI)
Track Organizers:
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Mechanical Design Features and Construction Cost of Horizontal Compact HTGR
1:00–1:20PM PDT
Enrique Velez-Lopez (Boston Atomics), W. Robb Stewart (Boston Atomics), Koroush Shirvan (MIT)
Paper
Core Modeling of Horizontal Compact High Temperature Gas-Cooled Reactor -- Refueling Strategy and Thermo-Mechanical Performance
1:20–1:40PM PDT
L. Mazzocco (MIT), L. Cohen (MIT), J. Kang (Univ. Michigan), W.R. Stewart (Boston Atomics), E. Velez-Lopez (Boston Atomics), K. Shirvan (MIT), V. Seker (Univ. Michigan)
Primary System Thermal Hydraulic Analysis Methodology for the HC-HTGR
1:40–2:00PM PDT
Brent Hollrah (TAMU), Ling Zou (ANL), Rui Hu (ANL)
Development of the Dynamics Model of a Horizontal Compact High Temperature Gas Reactor (HC-HTGR) in Modelica
2:00–2:20PM PDT
Qicang Shen (Univ. Michigan), Farhana Farha (Univ. Michigan), Samuel Piper (Univ. Michigan), Brendan Kochunas (Univ. Michigan)
Seismic Engineering of a Horizontal, Compact High Temperature Gas Reactor
2:20–2:40PM PDT
Sai Sharath Parsi (Univ. Buffalo), Kaivalya M. Lal (Univ. Buffalo), Enrique Velez (Boston Atomics), W. Robb Stewart (Boston Atomics), Mettupalayam V. Sivaselvan (Univ. Buffalo), Koroush Shirvan (MIT), Andrew S. Whittaker (Univ. Buffalo)
