Abstract

Obtaining nuclear data is an international activity with new and updated data constantly being determined by thousands of scientists at major research centres worldwide. Because of the large amounts of data generated and the formats used to store these data, the field of nuclear data is highly specialised. To make the most important key data more accessible to a wider audience, nuclide charts have been developed. In this article, we present the scientific highlights of the new 10th Edition of the Karlsruhe Nuclide Chart. The main focus of this Chart is to provide structured, accurate information on the half-lives and decay modes, as well as energies of the emitted radiation for over 4000 experimentally observed ground states and isomer nuclides to an interdisciplinary audience.

Highlights

  • The United Nations has designated 2019 as the international year of the periodic table of chemical elements, recognizing it as an instrument “central to linking cultural, economic and political aspects of the global society through a common language”

  • We present the scientific highlights of the new 10th Edition of the Karlsruhe Nuclide Chart

  • We describe in detail the latest edition of the Karlsruhe Nuclide Chart (KNC)

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Summary

Introduction

The United Nations has designated 2019 as the international year of the periodic table of chemical elements, recognizing it as an instrument “central to linking cultural, economic and political aspects of the global society through a common language”. First introduced in 1869 by Dmitry Mendeleev, the periodic table currently features 118 elements, identified by the number of protons in their atomic nucleus. The new 10th Edition of the Karlsruhe Nuclide Chart contains nuclear data on 4040 experimentally observed nuclide ground states and isomers. In addition to half-lives, decay modes, and energies of the emitted radiations, most recent data on atomic weights, isotopic abundancies, cross sections and thermal fission yields (for U 235 and Pu 239) are given. Together with a fold-out nuclide chart, a 72 page booklet gives additional information on important physical constants, properties of the chemical elements and more than 80 socalled reduced decay schemes to assist in the understanding of the nuclide box contents. These features are described in more detail

The structure of the Karlsruhe Nuclide Chart
New names of chemical elements
New decay and radiation data
Reduced decay schemes
Decay of the ground state Cs 134
Decay of the metastable state Cs 134m
Sources of decay data and the update procedure
Recently discovered nuclides
Regular updates of radioactive decay data for existing nuclides
Creation and updating of reduced decay schemes
Creation and maintenance of scientific references
Isotopic abundances
Thermal neutron cross sections
Chain yields for thermal neutron fission of U 235 and Pu 239
Physical constants
Properties of the elements and the periodic table of elements
Decay and nuclear reactions in Karlsruhe Nuclide Chart
Print editions
Online editions
Findings
Conclusions
Full Text
Published version (Free)

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