ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jun 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
July 2026
Nuclear Technology
Fusion Science and Technology
Latest News
Two steps forward for U.K. advanced nuclear
This week, two significant announcements have emerged from the United Kingdom’s advanced reactor sector.
On June 14, Rolls-Royce, the United Kingdom National Nuclear Laboratory, and the Japan Atomic Energy Agency announced that they had signed two trilateral memorandums of cooperation to collaborate on “advanced modular reactor (AMR) technology, specifically high-temperature gas-cooled reactors (HTGR), and the coated particle fuel these reactors will use.”
Separately, on June 16, Bellevue, Wash.–based TerraPower announced that its Natrium reactor design has been formally submitted for U.K. regulatory review. The company also announced the formation of a new subsidiary, TerraPower UK Ltd.
Technical Session|Sponsored by NCSD|Cosponsored by NNPD
Thursday, December 2, 2021|10:00–11:45AM EST |Gunston
Session Chair:
Catherine M. Percher
Alternate Chair:
Alexander T. McSpaden
Session Organizer:
Jesson D. Hutchinson
Student Assistant:
Rizki Oktavian
To access the session recording, you must be logged in and registered for the meeting.
Register NowLog In
To access paper attachments, you must be logged in and registered for the meeting.
Similarity of the PMM-2 Critical Experiments and Criticality Safety Cases Based on the keff Sensitivity Analysis
10:05–10:25AM EST
Mariya Brovchenko (IRSN), Nicolas Arphant (IRSN)
Paper
Attachment — SLIDES-ppt
Attachment — SLIDES pdf
Investigation of Delayed Neutron Sensitivities for Several ICSBEP Benchmarks Using MCNP
10:25–10:45AM EST
J. Hutchinson (LANL), N. Kleedtke (LANL), J. Alwin (LANL), A. Clark (LANL), T. Cutler (LANL), W. Haeck (LANL), R. Little (LANL), D. Neudecker (LANL), M. Rising (LANL), T. Smith (LANL), N. Thompson (LANL)
Validation of Jezebel Reactivity Coefficients and Sensitivity Analysis
10:45–11:05AM EST
Theresa Cutler (LANL), Jesson Hutchinson (LANL), Noah Kleedtke (LANL), Michael Rising (LANL), Denise Neudecker (LANL), Bob Little (LANL), Nick Thompson (LANL)
Effective Delayed Neutron Fraction and Reactivity Coefficient Sensitivity-Based Similarity Metrics for New Experiment Design Optimization
11:05–11:25AM EST
N. Kleedtke (LANL), J. Hutchinson (LANL), I. Michaud (LANL), T. Grove (LANL)
A Verification of Flux Sensitivity Estimates Using the MCNP Tally Perturbation Tool
11:25–11:45AM EST
Juliann R. Lamproe (Univ. of Michigan), Theresa E. Cutler (LANL), Michael Y. Hua (Univ. of Michigan), Alexander R. Clark (LANL), Jesson D. Hutchinson (LANL), Shaun D. Clarke (Univ. of Michigan), Sara A. Pozzi (Univ. of Michigan)
