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You searched on: Author: leticia pibida

Displaying records 11 to 20 of 52 records.
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11. Validation Testing of Standard Requirements for Backpack-type Radiation Detectors
Series: Technical Note (NIST TN)
Report Number: 1789
Published: 3/18/2013
Authors: Leticia S Pibida, Bruce R Norman
Abstract: Two gross count and one radionuclide identification backpack-type radiation detectors (BRDs) were used to validate radiological test requirements listed in the Domestic Nuclear Detection Office (DNDO), Technical Capability Standard (TCS) for BRDs ...

12. Justification of Shielding Requirements for Plutonium Sources
Series: Technical Note (NIST TN)
Report Number: 1758
Published: 9/12/2012
Authors: Leticia S Pibida, Michael P Unterweger
Abstract: This report provides a justification for shielding plutonium sources when testing radiation detection instruments against standard performance requirements and test methods. The use of copper as a shielding material is proposed to provide compara ...

13. Measurements for the Development of Simulated Naturally Occurring Radioactive Materials
Series: Journal of Research (NIST JRES)
Report Number: 117.008r2012
Published: 4/3/2012
Author: Leticia S Pibida
Abstract: Nineteen different commercially available samples containing naturally occurring radioactive materials (NORM) (i.e., natural uranium, thorium, radium and potassium) were investigated, including zircon sand, cat litter, roofing tiles, ice melt and ...

14. Validation Testing of ANSI/IEEE N42.49 Standard Requirements for Personal Emergency Radiation Detectors
Published: 4/30/2010
Authors: Leticia S Pibida, Ronaldo Minniti, C Michelle O\'Brien
Abstract: Various radiation detectors including thirteen electronic Personal Emergency Radiation Detectors (PERDs), radiochromic film cards and thermoluminescent dosimeters (TLDs) were used to validate a subset of the radiological test requirements listed in t ...

15. NIST Handbook 150-23, 2010 ed., National Voluntary Laboratory Accreditation Program (NVLAP) Homeland Security Applications: Radiation Detection Instruments
Series: Handbook (NIST HB)
Report Number: 150-23
Published: 4/13/2010
Authors: Betty A Sandoval, Leticia S Pibida, Gordon Gillerman, Michael P Unterweger
Abstract: NIST Handbook 150-23, NVLAP Homeland Security Applications: Radiation Detection Instruments, presents the technical requirements and guidance for the accreditation of laboratories that test radiation detection instruments used in homeland security ap ...

16. A New Primary Standardization of Th-229
Published: 1/7/2010
Authors: Ryan P Fitzgerald, Lizbeth Laureano-Perez, Michelle M. Hammond, Leticia S Pibida, Svetlana Nour, Brian Edward Zimmerman
Abstract: The National Institute of Standards and Technology (NIST) has certified a high-purity Th-229 Standard Reference Material as SRM 4328C, based on live-timed 4-pi alpha,beta-gamma anticoincidence counting (LTAC) of the equilibrium solution. The LTAC sy ...

17. New Spherial Gamma-ray and Neutron Emitting Sources for Testing of Radiation detection Instruments
Series: Journal of Research (NIST JRES)
Published: 11/30/2009
Authors: Larry Lee Lucas, Leticia S Pibida
Abstract: The National Institute of Standards and Technololgy (NIST) developed new gamma-ray and neutron emitting sources for testing radiation detection systems. These sources were developed for testing of detecstion systems in mairitime a pplications. This ...

18. Half-life Measurements of Sr82
Published: 1/30/2009
Authors: Leticia S Pibida, Ryan P Fitzgerald, Michael P Unterweger, Michelle M. Hammond, Daniel B. Golas
Abstract: Half-life measurements of 82Sr were performed at the National Institute of Standards and Technology (NIST) using gamma-ray spectrometry and a 4 pressurized ionization chamber. The 82Sr half-life was determined to be 25.36 &plu ...

19. A Liquid-Scintillation-based Primary Standardization of 210Pb
Published: 12/1/2007
Authors: L Laureano-p{eacute}rez, R Coll{eacute}, Ryan P Fitzgerald, Iisa Outola, Leticia S Pibida

20. Key Elements of Preparing Emergency Responders for Nuclear and Radiological Terrorism
Published: 12/1/2006
Authors: S Becker, B Bruddemeier, J Bushberg, J Cardarelli, W Conklin, B Dodd, J M Frazier, F Fong, R Goans, I Hamilton, R Kouzes, J M Links, P Liotta, F Mettler, T Pellmar, Leticia S Pibida, M Puzziferri, C Riland, J Ring, T Seed, J Smith, R Whitcomb

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