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
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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
May 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
High-temperature plumbing and advanced reactors
The use of nuclear fission power and its role in impacting climate change is hotly debated. Fission advocates argue that short-term solutions would involve the rapid deployment of Gen III+ nuclear reactors, like Vogtle-3 and -4, while long-term climate change impact would rely on the creation and implementation of Gen IV reactors, “inherently safe” reactors that use passive laws of physics and chemistry rather than active controls such as valves and pumps to operate safely. While Gen IV reactors vary in many ways, one thing unites nearly all of them: the use of exotic, high-temperature coolants. These fluids, like molten salts and liquid metals, can enable reactor engineers to design much safer nuclear reactors—ultimately because the boiling point of each fluid is extremely high. Fluids that remain liquid over large temperature ranges can provide good heat transfer through many demanding conditions, all with minimal pressurization. Although the most apparent use for these fluids is advanced fission power, they have the potential to be applied to other power generation sources such as fusion, thermal storage, solar, or high-temperature process heat.1–3
To find or confirm your session time, use the Search the Program box in the Technical Sessions program. You can search by your name.
Familiarize yourself with the Speaker Information
Contact the speakers in your session before the conference to introduce yourself and to be available for any questions from the speakers. For paper sessions, you can access speakers’ email addresses via the meeting platform. Your administrative rights in the meeting platform will be activated upon your registration for the conference. Under your name in the left-hand navigation bar of the meeting platform, click the Manage Your Sessions link. On the session page, scroll to the bottom of the page. Under Reports is a Presenting Author link. Note that the Presenting Author report is a download and does not open automatically in a new window.
Emphasize to presenters that they need to bring their slides on a USB drive and should set up back-ups, as described in the Speaker Information.
If a speaker tells you before the conference they cannot use USB drives, make alternate arrangements. This could include transferring the slides to you via Manage Your Papers (for the presenter) and Manage Your Sessions (for the session chair) on the meeting platform. Both you and the speaker need to be registered for the conference to make a transfer using the meeting platform. If you are bringing speakers’ slides to the conference, you will need to put them on a USB drive. If you are not able to use a USB drive, ask the speaker to upload their slides to the meeting platform and then contact epsr@ans.org for additional guidance.
Panel Session Chairs: Please 1) remind the panelists in your session that they need to be registered for the conference to participate as a panelist and 2) communicate all panel details/plans to the panelists. If needed, you can find the email addresses of panelists by using Manage Your Sessions and clicking on a panelist’s name.
With your session-chair administrative rights in the meeting platform, you can add or modify a session description, add or modify session officials, and add attachments.
Before the meeting, please familiarize yourself with ANS’s Session Chair Guidelines: Paper Sessions and Panel Sessions .
Speakers will show slides by using USB drives with the conference-provided laptop. Session chairs and speakers cannot use their own laptops; the conference-provided laptop must be used. Suggest to presenters that they email the slides to themselves and upload them to the meeting platform as back-ups.
Speakers know to check in with you in your session room at least 15 minutes before the start of your session. They may present you with brief biographical information to aid in your introductions. Or, before the conference, you can ask speakers to provide you with brief bios for introductions.
Assist presenters in keeping track of their time so that presentations do not run over. Please do not rearrange the order of the presentations in your session.
If your session is in the first morning timeslot, a session sign will be placed by the room approximately 20 minutes before the session begins. For all other timeslots, the session sign will be in place.
Start your session with a quick introduction.
If you have a no-show, hold that time slot, and do not move ahead. Consider prompting discussion about the session’s topic to fill the time and to encourage attendees to remain in the room.
Inform ANS of any no-shows in your session via the Session Chair Form.
Remind attendees who request Professional Development Hours (PDHs) that they must complete the in-app session survey.
Complete the Session Chair Form and turn it in per the instructions on the form.
Last modified June 8, 2023, 2:50pm EDT
