Fusion Grand Challenges
June 30, 2017
At the initiative of American Nuclear Society (ANS) President Andy
Klein, the Society spent the last year to identify, accumulate, analyze,
vet, select, release, and promote a set of technical Nuclear Grand
Challenges that need to be addressed by 2030. The ANS Fusion Energy
Division (FED) prepared a list of 40 fusion Grand Challenges. The FED
Executive Committee held several videoconferences, open to all FED
membership, to solicit feedback. Of the 40 submissions, seven were
identified as the top Grand Challenges for Fusion. These were (in order
For more information visit the FED web page:
- Qualification of advanced materials that can withstand extreme nuclear fusion and
fission environments (high temperature, radiation damage and transmutation, helium
and hydrogen surface and bulk effects, and compatibility with advanced coolants).
- Safely and efficiently fuel, exhaust, breed, confine, extract, and separate tritium in
- Successfully demonstrate significant energy gain in a long pulse or steady-state
- Development of an experimentally validated integrated predictive simulation
capability that will reduce risk in the design and operation of fusion energy systems.
- Development of an appropriate safety and licensing process for future nuclear fusion
facilities, with related criteria, including the qualification of materials and safety
- Construct and operate a high flux, high-energy (10 to 15 MeV) neutron source for
research in fusion, fission, transmutation, and radio-isotope production applications.
- Demonstration of an effective plasma exhaust system that can operate under nuclear
conditions and maintain performance for a lifetime that avoids frequent replacement.