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
June 2026
Fusion Science and Technology
May 2026
Latest News
FERC approves Constellation waiver request on Crane restart
The Federal Energy Regulatory Commission has approved Constellation’s waiver request to transfer PJM capacity interconnection rights from one of its gas- and oil-powered plants to its Crane nuclear power plant (formerly Three Mile Island-1).
While Constellation executives previously said that an unsuccessful waiver request wouldn’t have prevented the Middletown, Pa., plant from restarting as soon as 2027, it could have impacted whether Crane could fully deliver power to the grid once it is on line. The decision, issued by FERC on June 1, likely helps facilitate Constellation’s path forward for the plant’s restart.
Sunday, September 14, 2025|8:00AM–12:00PM CDT
Classroom 104
Cost: $49
This workshop will cover the MCNP6.3 and Whisper-1.1 code capabilities relevant to performing sensitivity/uncertainty-based criticality safety analysis. While more details of the workshop will be forthcoming, a few of the topics to expect at this workshop include:
All the workshop materials, including slides, exercises, documentation, etc., will be made available to all participants. There will be live exercises done by the instructors. Participants interested in performing the exercises will need to bring their own laptop with the MCNP6.3 and Whisper-1.1 software installed (see how to obtain the MCNP6.3 code here https://mcnp.lanl.gov/how_to_get_the_mcnp_code.html). The MCNP6.2 version of the code will likely be sufficient to perform most of the exercises included. However, earlier versions of the MCNP6 code, i.e., MCNP6.1.1beta and earlier, will not be able to perform the exercises provided. Details on any additional software required will be communicated well before the workshop. Attendees are not required to participate in the exercises performed during the workshop nor are they required to have a license to the MCNP6 code. Instructors will be available to discuss participant questions regarding the workshop materials.