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.
Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
Apr 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
P. Michelato, E. Cavaliere, C. Pagani, E. Bari, A. Bonucci
Nuclear Science and Engineering | Volume 157 | Number 1 | September 2007 | Pages 95-109
Technical Paper | doi.org/10.13182/NSE07-A2715
Articles are hosted by Taylor and Francis Online.
In recent years the research on nuclear power generation focused on an innovative subcritical reactor concept, along with previous liquid-metal-cooled critical reactors. The accelerator-driven system reactor design matches higher and intrinsic safety requirements with the reduction of actinides and long-lived fission products, encumbrances on the nuclear waste final repository. The coupling of the accelerator technology with the reactor facility faces new challenges; the first is the design of the interface between accelerator and reactor. Currently two solutions are proposed and investigated: one with a solid beam-target window interface and the other one without a beam window. Our speculations focus on the windowless approach: No physical barrier is located in the interface region, so the ultrahigh vacuum environment of the accelerator is connected with the operative conditions of the reactor through an intermediate spallation target. In this work we describe our experimental activities and the numerical tool employed to give a basic characterization of the vacuum dynamics for a windowless interface, with particular regard given to proton beamline and target interface of the Ansaldo A80-XADS reference design.