Guiding Nuclear Excellence
Independent nuclear engineering expertise for organizations facing high-stakes technical, regulatory, and security decisions
Who We Are
K&S Nuclear Advising Services, LLC is an Atlanta-based firm led by two Ph.D., P.E. nuclear engineers, each with more than 30 years of experience in reactor operations, radiation measurement, nuclear test-ban monitoring, nonproliferation, and advanced reactor licensing.
Licensed Engineers
Professional Engineers in Virginia and Texas, and former NRC-licensed reactor operators.
Treaty Monitoring Pioneers
We built and deployed radionuclide monitoring systems for the Comprehensive Nuclear-Test-Ban Treaty.
Advanced Reactor Leaders
Molten salt reactor design and licensing experience, including a 2025 Hevesy Medal recipient.
Our Team
Kendra Biegalski, Ph.D., P.E. | President & Consultant
Nuclear engineer with more than 30 years of experience in radionuclide monitoring, nonproliferation, radiochemistry, and nuclear safety and security. She designed the radioxenon analysis software used for Comprehensive Nuclear-Test-Ban Treaty monitoring, taught at UT Austin and Georgia Tech, and now evaluates the technical, economic, proliferation, and supply-chain aspects of reactor designs for investment clients. Licensed P.E. (Virginia) and former NRC-licensed Senior Reactor Operator. Ph.D., University of Illinois at Urbana-Champaign.
Steven Biegalski, Ph.D., P.E. | Principal Consultant
Internationally recognized expert in radioxenon monitoring, molten salt reactor technology, nuclear forensics, and nonproliferation. He is Professor and Chair of Nuclear and Radiological Engineering at Georgia Tech, where he leads the molten salt research reactor project, and formerly directed radionuclide operations for the CTBT Prototype International Data Center. Recipient of the 2025 Hevesy Medal, with more than 200 publications. Licensed P.E. (Texas). Ph.D., University of Illinois at Urbana-Champaign. Dr. Biegalski consults through K&S Nuclear Advising Services independently of his role at Georgia Tech.
Selected Experience
Radionuclides in Imported Food: Technical Assessment for a Major U.S. Food Company
After radionuclides were detected in imported food products and FDA issued an import alert, K&S prepared a technical white paper for the company's leadership. The work included ingestion dose calculations, a comparison of measured levels with FDA, Codex, EU, and Japanese limits, a review of port-of-entry screening, an analysis of likely contamination pathways, and a decision framework for sourcing and testing. The analysis showed consumer doses were orders of magnitude below natural background radiation and below FDA's protective action guidance.
