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
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jun 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
July 2026
Nuclear Technology
June 2026
Fusion Science and Technology
May 2026
Latest News
Antares achieves zero-power criticality at INL
Leveraging more than $140 million in private capital fundraising, over 322,000 square feet of operational manufacturing space, and multifaceted partnerships with the Departments of Energy and Defense, reactor start-up Antares has become the first company involved in the Reactor Pilot Program to achieve zero-power fueled criticality—a full month ahead of the July 4 deadline set by President Trump’s Executive Order 14301.
This milestone, announced yesterday, was achieved with the company’s Mark-0: a sodium heat-pipe-cooled, TRISO-fueled microreactor. The Mark-0 is a forerunner to the company’s flagship design, which it calls the R1. For Antares, this development represents a key validation of its reactor physics, control systems, and supply chain.
Hiroto Matsuura et al.
Fusion Science and Technology | Volume 63 | Number 1 | May 2013 | Pages 180-183
doi.org/10.13182/FST13-A16900
Articles are hosted by Taylor and Francis Online.
In GAMMA 10, divertor simulation study has been started as a new research plan. Finding of the reduction method of high heat-load to the divertor plates is an important key of an operation scenario of fusion reactors. So precise estimation of divertor heat flux is an important task to do it. The paper describes advanced concept of heat flux estimation and proposes the improvement of the sensor used in GAMMA 10. First experimental result of a new sensor is also shown.