Radiabeam technologies, LLC new newton award control number: 3418-1507 title: superconducting NB3SN cavities for efficient and reliable 10 MW proton linacs this competitive cooperative agreement for a…

The Department of Energy Advanced Research Projects Agency awarded Radiabeam Technologies, LLC a $1.873 million cooperative agreement on April 7, 2026, under the Advanced Research Projects Agency-Energy program (CFDA 81.135) to develop superconducting niobium-tin radiofrequency cavities for high-power proton linacs capable of transmuting all classes of used nuclear fuel isotopes. The award funds research and development of two types of superconducting radiofrequency cavities designed to enable reliable, high-availability particle generation while reducing long-duration beam trips and operational costs compared to systems implemented in the Spallation Neutron Source and the Multi-Purpose Hybrid Research Reactor for High-Tech Applications.

The award is part of the Nuclear Energy Waste Transmutation Optimized Now (NEWTON) program, Funding Opportunity Announcement DE-FOA-0003418, with award control number 3418-1507. Performance occurs in Santa Monica, California, with a completion date of April 6, 2029. Radiabeam Technologies is a small-business prime recipient and Santa Monica-based manufacturer of advanced particle accelerator components and radiation technologies. This is one of two ARPA-E cooperative agreements Radiabeam received under NEWTON in 2026; the other, awarded February 19, 2026, funds thin-film niobium-tin superconducting cavities for accelerator-driven waste transmutation systems and carries a $1.079 million obligation.

Radiabeam technologies, LLC new newton award control number: 3418-1507 title: superconducting NB3SN cavities for efficient and reliable 10 MW proton linacs this competitive cooperative agreement for a research and development project entitled, "superconducting NB3SN cavities for efficient and reliable 10 MW proton linacs" is awarded radiabeam technologies, LLC under arpa-e FOA number DE-FOA-0003418.(nuclear energy waste transmutation optimized now (newton)) and control 3418-1507. The purpose of this award is to demonstrate two types of superconducting radiofrequency (SRF) cavities designed to enable transmutation of all classes of used nuclear fuel isotopes while supporting reliable, high-availability particle generation. The proposed concept, based on a new SRF niobium-tin material, has significant potential to disrupt existing paradigms by reducing both the frequency of long-duration beam trips and operational costs compared to current and emerging technologies, including systems implemented in the spallation neutron source (SNS) as well as the multi-purpose hybrid research reactor for high-tech applications (myrrha).