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Lizbeth Laureano-Perez

Dr. Lizbeth Laureano-Pérez has served as the Co-coordinator of the SRM program in the Radioactivity Group and Radiation Physics Division (RPD), Physical Measurement Laboratory (PML), at the National Institute of Standards and Technology (NIST) since June 2005. She has effectively supported the production and standardization of standard reference materials (SRM's) from production to standardization. Her work includes the preparation of SRMs, radioactive solutions and sources for measurement in different methods. Her focus is in the standardization of various radionuclides, using 4παβ liquid scintillation (LS) spectrometry and CIEMAT/NIST method. Her thorough experimental work and investigation skills have led to the publication of technical papers and have been instrumental in the issuance of complete and accurate standardization/certification of SRMs. Lizbeth also has assisted Group colleagues in various projects from environmental to nuclear medicine and participated as NIST lead in several important and significant international measurement comparisons.

Lizbeth received recognition in May 2006 for her guidance and leadership in upgrading and reinvigorating the Radioactivity SRM program resulting in increased productivity; in December 2008 NIST Bronze Medal Award, "For the revitalization and expansion of the NIST radioactive SRM program" and in October 2010 for exceptional efforts, leadership and exemplary technical skills in NIST's participation in the international comparison of the activity of 241Pu.

Publications

Primary standardization of Ra-224 activity by liquid scintillation counting

Author(s)
Denis E. Bergeron, Jeffrey T. Cessna, Ryan P. Fitzgerald, Brian E. Zimmerman, Lizbeth Laureano-Perez, Ronald Colle, Leticia S. Pibida, Elisa Napoli
A standard for 224Ra activity has been developed, based on triple-to-double coincidence ratio (TDCR) liquid scintillation (LS) counting. The standard was

Preparation and calibration of a Protactinium-231 reference material

Author(s)
Richard M. Essex, Ross W. Williams, Kerri C. Treinen, Ronald Colle, Ryan P. Fitzgerald, Raphael Galea, John Keightley, Jerome J. LaRosa, Lizbeth Laureano-Perez, Svetlana Nour, Leticia S. Pibida
A 231Pa reference material has been characterized for amount of Pa. This reference material is primarily intended for calibration of 233Pa tracers produced for

New determination of the 229Th half-life

Author(s)
Richard M. Essex, Jacqueline L. Mann, Ronald Colle, Lizbeth Laureano-Perez, Megan E. Bennett, Heather Dion, Ryan P. Fitzgerald, Amy M. Gaffney, Amelie Hubert, Rob Steiner, Ross W. Williams, Alkiviadis Gourgiotis, William S. Kinman
A new determination of the 229Th half-life was made based on measurements of the 229Th massic activity of a high-purity solution for which the 229Th molality

Natural Uranium Radioactivity Solution Standard: SRM 4321d

Author(s)
Ronald Colle, Lizbeth Laureano-Perez, Svetlana Nour, Jerome J. LaRosa, Brian E. Zimmerman, Leticia S. Pibida, Denis E. Bergeron
A new natural uranium solution standard has been produced and will be disseminated by the National Institute of Standards and Technology (NIST) as Standard

Results of an International Comparison of Activity Measurements of 68Ge

Author(s)
Jeffrey T. Cessna, Ryan P. Fitzgerald, Brian E. Zimmerman, Lizbeth Laureano-Perez, Denis E. Bergeron
An international key comparison, identifier CCRI(II)-K2.Ge-68, has been performed. The National Institute of Standards and Technology (NIST) served as the pilot
Created October 3, 2019