Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 1 Dynamic Radioactive Particle Source Los Alamos Unclassified Report US Patent Office Application # Murray E. Moore Alan L. Justus Los Alamos National Laboratory Radiation Protection Group RP-2 Adam B. Gauss Ares Corp., Los Alamos NM Air Monitoring Users Group – May 4, 2009
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 2 Dynamic Alpha Particle Source Problem: ** Evaluation of CAM samplers with plutonium aerosols ** Time intensive, expensive, requires special facility. Solution: ** Dynamic Radioactive Particle Source (DRPS) ** Replicates the presence of a plutonium aerosol cloud.
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 3 Dynamic Alpha Particle Source Designed to dynamically introduce radioactivity, with the appropriate alpha spectrum.
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 4 Dynamic Alpha Particle Source Current Evaluation Techniques Check Source Pu-239 Aerosol Generation
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 5 DRPS Puff Release - Integrated
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 6 DRPS geometry for replication of a puff release
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 7
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 8 DRPS geometry for replication of a chronic release
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 9 DRPS Chronic release replication
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 10 DRPS chronic release with actual CAM response
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 11 DRPS mounted in a Canberra filter cartridge
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 12 Dynamic Alpha Particle Source Provides non-specialized in-house testing Low cost: ~$2,000 (Pu aerosol ~$10,000 per test) Control of CAM for multiple test scenarios Repeatability Simulation of realistic plutonium aerosol spectrum Supports iterative development/evaluation of CAMs Adaptable for use in a number of different CAMs Does not contaminate tested CAM sampler
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 13 Dynamic Alpha Particle Source Questions?
Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 14 Unclassified LA-UR Dynamic Radioactive Particle Source Los Alamos Unclassified Report US Patent Office Application # Murray E. Moore Alan L. Justus Los Alamos National Laboratory Radiation Protection Group RP-2 Adam B. Gauss Ares Corp., Los Alamos NM Air Monitoring Users Group – May 4, 2009