Archive for March, 2022

New 11th Edition (2022) of the Karlsruhe Nuclide Chart

March 8th, 2022

The 11th Edition 2022 of the “Karlsruher Nuklidkarte” contains new and updated radioactive decay and thermal neutron cross sections data on 1035 nuclides (82 new nuclides) not found in the previous (2018) edition. In total, nuclear data on 4122 experimentally observed ground states and isomers are presented.KNCO11 All thermal fission chain yield data for 235U and 239Pu (with 16 new mass chains) has been updated using the latest values from JEFF3.3 radioactive decay data file from 2018. The thermal neutron cross sections data in nuclide boxes has been also actualized based on the sixth edition of the Atlas of Neutron Resonances (Volume 1-2, author: S.F. Mughabghab, published by Elsevier in 2018).
Most recent values of the atomic weights, isotopic abundances and cross sections are included together with the thermal fission yields for both 235U and 239Pu. For thirteen elements, a range of atomic weights is given to reflect the isotopic variability in natural materials. The accompanying booklet again contains the multi-lingual “Explanation of the Chart of the Nuclides” in English, German, French and Spanish, updated to reflect changes in the Chart. The Reduced Decay Schemes section initiated in previous editions, and used to describe in detail how the nuclide box contents should be interpreted with reference to the nuclide decay schemes, has been considerably expanded.
This new 11th Edition of the Karlsruhe Nuclide Chart is the result of a collaboration between Zsolt Sóti from the EC’s Joint Research Centre and Joseph Magill and Raymond Dreher from the Nucleonica team. The online version of the Karlsruhe Nuclide Chart is available through the Nucleonica nuclear science portal (

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Karlsruhe Nuclide Chart, 11th Edition 2022

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