TWoFCS2026 & NuMBAC2026

TWoFCS 2026 is an international workshop that brings together experts researching nuclear and fuel cycle strategies based on numerical analysis. Since the first workshop held in 2016, six workshops have been conducted to date. In 2026, Japan will serve as the host. TWoFCS2026 will be jointly held with NuMBAC, Japan's nuclear fuel cycle simulation research community and workshop. NuMBAC has evolved to incorporate not only traditional technical perspectives of nuclear fuel cycle simulation but also social science perspectives such as economics and sociology. By jointly hosting TWoFCS and NuMBAC, we aim to stimulate interdisciplinary discussions toward the advancement of nuclear fuel cycles in the future, going beyond conventional technical discussions.

Contents

• Contents
• Date & Place
• Data
• Format
• Venue
• Main Theme: “Strategy & Simulation Towards Fuel Cycle 2.0”
• Agenda
• Code Showcase
• Plenary Session
• Technical Session
• Supports
• Sponsor
• Co-sponsor
• Important Dates & Registration
• Important Dates
• Registration Fees
• Abstract Submission for Technical Session
• The potential topics are as follows ( but are not limited to )
• Young Professional Competition on TWoFCS2026
• Requirements
• Travel Grant
• How to Apply
• Request for Supporters and Sponsors
• Selectable benefits
• Organizing Committee
• Contact
• Past events

Date & Place

Data

April 15 (Wed) - 17 (Fri), 2026 (Main sessions: April 16-17)

Format

Hybrid format (in-person and online) *Online presentations are also possible. However, please note that if there are a very large number of presentations, in-person presenters may be given priority in program scheduling.

Venue

Institute of Science Tokyo, Ookayama Campus

Main Theme: “Strategy & Simulation Towards Fuel Cycle 2.0”

Ambitious nuclear energy development plans are being unveiled worldwide, and concrete projects are rapidly progressing from concept to implementation. Once these initiatives are realized, we will be on the verge of a "Second Expansion Phase" of nuclear power. During this phase, the architecture of the nuclear fuel cycle could undergo a fundamental transformation.

At this pivotal juncture, the need for comprehensive nuclear fuel cycle simulations that can integrate the past, present, and future within a single analytical framework has never been greater. This workshop designates the fuel cycle of the second expansion phase "Fuel Cycle Version 2.0." Building on the expertise accumulated thus far, we will engage in multifaceted discussions to design a sustainable nuclear fuel cycle.

Agenda

Code Showcase

This is a special event where simulator developers from around the world gather to demonstrate their respective codes in an interactive format. Nuclear fuel cycle simulators have been developed globally, and various benchmarks and code catalogs have been established over the years. However, catalogues only show a small part of the code. By looking at actual running programmes, you can learn about the its features and appeal. Therefore, we are holding a "Code Showcase" to reveal the true nature of many codes!

Plenary Session

The nuclear fuel cycle is at a major turning point as the world transitions toward sustainable energy systems and advanced nuclear technologies. This plenary session will feature distinguished keynote speakers who are experts well-versed in nuclear utilization plans, energy policy, industrial strategy, and international cooperation frameworks.

Technical Session

The technical session will feature both oral presentations and interactive poster sessions, providing multiple formats for knowledge exchange and networking. We anticipate approximately 40-60 technical presentations covering cutting-edge research and practical applications.

Supports

Sponsor

Co-sponsor

Important Dates & Registration

Important Dates

Registration Fees

Abstract Submission for Technical Session

Abstracts should be no more than 5 page in length. If accepted, presentations should be no more than 15 minutes in length, with 5 minutes for Q&A. Technical talks will be grouped into sessions by the program committee.

Please upload your abstract by November 30 to the abstract submission Box folder.

The potential topics are as follows ( but are not limited to )

Listed in order from Basic to High Level.

• Fundamentals of nuclear fuel cycle systems. Modeling. Development of analysis methods, uncertainty assessment, etc.
• Code development for nuclear fuel cycle simulators
• Analysis of future nuclear energy utilization and nuclear fuel cycles
• Policies, economic feasibility, social acceptability, nuclear non-proliferation safeguards, etc., for future nuclear energy utilization

Young Professional Competition on TWoFCS2026

We are pleased to announce the "Young Professional Competition on TWoFCS2026." This competition aims to foster the next generation of experts and promote international academic exchange by providing travel support to outstanding young professionals wishing to attend the international conference.

Requirements

• Applicants must have successfully submitted an abstract for presentation at the conference.
• Applicants must be 37 years of age or younger as of the application deadline.
• The submitted abstract must be recognized for its academic excellence.
• Applicants must be able to attend the conference in person and participate in various on-site events.

Travel Grant

Successful applicants will receive a travel grant to support their participation.

• Grant Amount: Up to USD 1,000 per person (approximately JPY 160,000)

How to Apply

Please complete the application through the following link until January 10th, 2026

We look forward to receiving your applications and welcoming the next generation of leading professionals to TWoFCS2026.

Request for Supporters and Sponsors

TWoFCS2026 is a great opportunity to share/exchange the information about nuclear research and business, participated nuclear professionals. TWoFCS2026 will also provide business chance to contact with potential customers or collaborators, might inspire new business idea through presentations, exhibitions.

We would like to ask you to support and participate for the sake of success of this international workshop, invigorate the nuclear society, furthermore, promote your organization.

Please email twofcs2026@zc.iir.isct.ac.jp with application and any questions.

Selectable benefits

Organizing Committee

Contact

Please email twofcs2026@zc.iir.isct.ac.jp with any questions.

Past events

• TWoFCS2024
• TWoFCS2021
• TWoFCS2019
• TWoFCS2018
• TWoFCS2017