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Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
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Nuclear decay data evaluation for 212Pb.

B E Zimmerman1

  • 1Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, USA.

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|October 11, 2025
PubMed
Summary
This summary is machine-generated.

A new evaluation of 212Pb decay data was completed by the Decay Data Evaluation Project (DDEP). This study provides updated recommended values for half-life and gamma-ray emission probabilities, enhancing nuclear data accuracy.

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Area of Science:

  • Nuclear Physics
  • Radiochemistry
  • Atomic Physics

Background:

  • Accurate decay data are crucial for nuclear science applications.
  • Previous evaluations of 212Pb decay data may not incorporate the latest experimental findings.

Purpose of the Study:

  • To perform a comprehensive evaluation of the decay data for 212Pb.
  • To provide updated recommended values for key nuclear and atomic quantities.

Main Methods:

  • Inclusion of recently published experimental measurements for gamma-ray emission probability and half-life.
  • Derivation of recommended values for beta-branching ratios and other relevant nuclear and atomic data.

Main Results:

  • New recommended values for 212Pb half-life and gamma-ray emission probabilities.
  • Updated beta-branching ratios and associated nuclear and atomic data.

Conclusions:

  • The DDEP has successfully updated the decay data for 212Pb.
  • The comprehensive dataset is available on the DDEP website for researchers.