1. 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 09-02686 US Patent Office Application #12433503 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

2. 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.

3. 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.

4. 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

5. 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

6. 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

7. Operated by Los Alamos National Security, LLC for NNSA U N C L A S S I F I E D Slide 7

8. 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

9. 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

10. 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

11. 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

12. 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

13. 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?

14. 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-09-02686 Dynamic Radioactive Particle Source Los Alamos Unclassified Report 09-02686 US Patent Office Application #12433503 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