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
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Aug 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
Fusion Science and Technology
August 2025
Latest News
Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
C.Ahnert, J. M. Aragonés , A. Crespo, A. Labay, J. R. León, A. I. Alvarez
Nuclear Science and Engineering | Volume 100 | Number 3 | November 1988 | Pages 305-313
Technical Paper | doi.org/10.13182/NSE88-A29044
Articles are hosted by Taylor and Francis Online.
The advances achieved during 1986 in the development and validation of the Spanish pressurized water reactor (PWR) core analysis system SEANAP-86 are presented and discussed. The advances were achieved through the cooperation of two research institutes (DENIM and JEN-CIEMAT) and two nuclear power plants (Almaraz and Ascó). The main features and advances of the core analysis system are summarized. The system is intended to provide the utilities with the in-house capability to analyze the core design, nuclear tests, and operation along reload cycles, as technical support for licensing and operation. The validation is done by an extensive comparison with the measurements available from the nuclear tests and in-core operation followup of four 900-MW(electric) PWR units (Almaraz-1 and -2, Ascó-1 and -2) along their first cycles and several reload cycles, as well as with the available design data. Good agreement is obtained for the broad sets of parameters and cycles analyzed, which qualifies the SEANAP-86 system as an effective core analysis support tool and encourages further developments, which are presently under way.
