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  • Atomic Masses, Q-values, and Threshold Energies

    This Q-value calculation programme allows you to calculate reaction Q-values and threshold energies and decay Q values based on the 1995 Update to the Atomic Mass Evaluation and to retrieve other quantities contained in this evaluation.

    2003 atomic mass evaluation, NUBASE, PC-NUCLEUS. The program QCALC has been produced by the National Nuclear Data Center of the Brookhaven National Laboratory, Upton, NY, USA, with funding from the U.S. Department of Energy. The accompanying data base was produced by the Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, Orsay Campus, France and the National Institute of Nuclear Physics and High-Energy Physics, Amsterdam, The Netherlands.

    Resource Information

    Quality LevelQuality-checked by the IAEA Secretariat
    CompletenessComprehensive
    Update FrequencyStatic
    Last Resource Update2012
    SubjectNuclear Physics
    Organizational SourceNuclear Applications
    Data TypeCodes and Numerical Data
    Keywordsatomic data; Atomic codes; atomic mass evaluation; Q value
    Contact pointContact email 1; Contact email 2
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