Title: High-quality medium-resolution gamma-ray spectra from certified reference uranium and plutonium materials
Authors: ZSIGRAI JOZSEFMUEHLEISEN ARTURWEBER Anne-LaureFUNK PierreBERLIZOV AndreyMINTCHEVA Juliana
Citation: Symposium on international safeguards - linking strategy, implementation and people
Publisher: IAEA
Publication Year: 2014
JRC N°: JRC90315
URI: https://conferences.iaea.org/indico/contributionDisplay.py?contribId=89&sessionId=38&confId=47
http://publications.jrc.ec.europa.eu/repository/handle/JRC90315
Type: Articles in periodicals and books
Abstract: A collection of medium resolution gamma-ray spectra from well-characterized U and Pu certified reference materials CRM-171 (also known as SRM-969), CRM-271 and Harwell PIDIE standards has been recorded. The spectra were recorded using LaBr3(Ce) (2.0” x 0.5”) and CZT (500 mm3) detectors. Aiming to acquire the highest quality reference data, the spectra were measured for long acquisition times, ensuring very good counting statistics across potentially useful spectral intervals - up to 1 MeV for the CZT and up to 2.6 MeV for the LaBr3(Ce) detectors. The experimental setup assures that the measurement geometry is stable and reproducible, and the spectra have minimum influence from background radiation and pile-up effects. The spectra will complement the international database of reference gamma-ray spectra with high-quality data for medium resolution spectrometers, and feed phase I of the U/Pu isotopic inter-comparison exercise that is being jointly organized by the ESARDA NDA Working Group and IAEA.
JRC Directorate:Nuclear Safety and Security

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