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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.
Matthew Quinn, David Orozco, Kurt Boehm, Brian Sammuli, Wendi Sweet
Fusion Science and Technology | Volume 79 | Number 7 | October 2023 | Pages 791-800
Research Article | doi.org/10.1080/15361055.2023.2204201
Articles are hosted by Taylor and Francis Online.
The success of inertial confinement fusion experiments hinges on the production of perfectly round spherical capsules placed at the center of an implosion. Some of the most common ablator materials are grown on poly(alpha-methylstyrene) (PAMS) mandrels. Human operator–based optical inspection of individual PAMS mandrels followed by a selection decision, is a labor-intensive process that suffers from operator dependence. General Atomics has developed a robotic system to handle and image these delicate PAMS mandrels and has implemented an autonomous method for evaluating shell quality. The selection criteria of acceptable mandrels has been standardized by employing visual defect characterization tools and associated machine learning algorithms. This work discusses the mechanical upgrades made to the robot cell for handling shells, the suite of software tools developed for a more complete evaluation of individual shells, and correlating defect statistics from entire batches to production data from the PAMS fabrication process parameters.