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Updated: Jun 30, 2026
10:42
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
Published on: May 3, 2019
Evaluation of 133Xe and 133Xe(m) decay data
1Laboratorio de Metrología de Radiaciones Ionizantes, CIEMAT, Av. Complutense 22, 28040 Madrid, Spain.
Summary
This study provides an updated evaluation of decay data for Xenon-133 (133Xe) and its isomer (133Xe(m)). New data on half-lives, gamma-ray intensities, and atomic radiation probabilities are presented for improved nuclear decay analysis.
Area of Science:
- Nuclear Physics
- Atomic Physics
- Radiochemistry
Background:
- Accurate decay data is crucial for nuclear applications.
- Previous evaluations of 133Xe and 133Xe(m) may not incorporate the latest experimental findings.
Purpose of the Study:
- To present a comprehensive and updated evaluation of decay data for 133Xe and 133Xe(m).
- To incorporate recent experimental data, including half-life and gamma-ray intensity measurements.
- To provide evaluated atomic radiation emission probabilities.
Main Methods:
- Evaluation of recent experimental data for half-lives and gamma-ray intensities.
- Calculation of internal conversion coefficients (ICC) using the 'Frozen Orbital' approximation.
- Deduction of atomic radiation emission probabilities (X-ray and Auger electrons).
Main Results:
- Updated half-life and gamma-ray intensity values for 133Xe and 133Xe(m).
- Comparison of calculated ICC with recent experimental measurements.
- New evaluated gamma-ray intensities for 81-keV (37.0 (3)%) and 233-keV (10.16 (13)%) lines.
- Inclusion of atomic radiation emission probabilities.
Conclusions:
- The presented evaluation offers a more accurate dataset for 133Xe and 133Xe(m) decay.
- This work refines understanding of internal conversion processes and atomic radiations accompanying nuclear decay.
- The updated data is valuable for nuclear spectroscopy, dosimetry, and related scientific fields.
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