Kaleidos

Artist rendering with Radiant and logo above the reactor design with the primary heat exchangers, helium circulators, control drum, core, and vessel shell pointed out.


Project Overview

The U.S. Nuclear Regulatory Commission (NRC) is currently engaged in pre-application activities with Radiant Industries, Inc. (Radiant), starting in October 2022. Radiant is an El Segundo, CA company developing its Kaleidos design, a transportable micro-reactor designed to generate 3MWth and approximately 1MWe. The Kaleidos micro-reactor is a high-temperature gas-cooled reactor (HTGR) using TRISO fuel, helium gas coolant, and prismatic graphite blocks. Each micro-reactor will be fully contained in a single shipping container.

For more information, please see the Radiant pre-application documents (NRC Docket 99902106).

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Pre-Application Activities

Product Type Reference  Status
Radiant Kaleidos Micro-reactor Pre-application Regulatory Engagement Plan – October 2023 Regulatory Engagement Plan ML23286A328 No review requested