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Radionuclide Dosimetric Data Sheets
Palladium-101
Summary data
General
Classification
Isotope: Pd-101
Atomic number (Z): 46
Mass number (A): 101
Neutron number (N): 55
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 8.47 [h]
Decay constant: 2.2732e-05 [1/s]
Daughters: Rh-101m (99.7%), Rh-101 (0.27%)
Radioactive daughters: Rh-101m, Rh-101
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.03277 [MeV]
Mean photon energy: 0.35177 [MeV]
Air kerma rate constant, Γ10: 2.642e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 2.837e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 5.250e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δα: 0.000e+00
[Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δβ-,β+,e-:
5.250e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 5.636e-14
[Gy·kg/Bq·s]
Summary spectra (plot)
Spectra source: ICRP Publication 107: Nuclear Decay Data for Dosimetric Calculations. Ann. ICRP 2008, 38 (3).
Download tabulated summary spectra file here: www.mirdsoft.org/products/MIRDspecs/Pd-101 Summary Spectrum.csv
Beta spectra (plot)
Spectra source: ICRP Publication 107: Nuclear Decay Data for Dosimetric Calculations. Ann. ICRP 2008, 38 (3).
Download tabulated beta spectra file here: www.mirdsoft.org/products/MIRDspecs/Pd-101 Beta Spectrum.csv
Tabulated data
Summary spectra (table)
Spectra source: ICRP Publication 107: Nuclear Decay Data for Dosimetric Calculations. Ann. ICRP 2008, 38 (3).
Note: Radiations with yield < 0.01 are excluded from the table, but are available in the linked *.csv data.
Download tabulated summary spectra file here: www.mirdsoft.org/products/MIRDspecs/Pd-101 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
9.95814e-06 |
1.493e+01 |
X-ray |
|
2.68654e-03 |
4.451e-02 |
X-ray |
|
2.82846e-03 |
2.109e-02 |
X-ray |
|
2.00395e-02 |
3.573e-01 |
X-ray |
|
2.01865e-02 |
6.764e-01 |
X-ray |
|
2.26708e-02 |
5.752e-02 |
X-ray |
|
2.26963e-02 |
1.118e-01 |
X-ray |
|
2.31321e-02 |
1.144e-02 |
X-ray |
|
2.31362e-02 |
2.209e-02 |
X-ray |
|
2.44600e-02 |
3.898e-02 |
Gamma |
|
2.69670e-01 |
6.432e-02 |
Gamma |
|
2.96290e-01 |
1.920e-01 |
Gamma |
|
5.11000e-01 |
1.010e-01 |
Annihilation photon |
|
5.65980e-01 |
3.437e-02 |
Gamma |
|
5.90440e-01 |
1.206e-01 |
Gamma |
|
7.23750e-01 |
1.958e-02 |
Gamma |
|
1.20204e+00 |
1.517e-02 |
Gamma |
|
1.28905e+00 |
2.285e-02 |
Gamma |
|
3.45797e-01 |
4.847e-02 |
Positron |
|
3.35237e-05 |
5.905e+00 |
Auger electron |
|
1.10552e-04 |
3.294e-01 |
Auger electron |
|
1.18256e-04 |
1.441e+00 |
Auger electron |
|
2.60342e-04 |
3.532e+00 |
Auger electron |
|
3.07701e-04 |
2.304e-02 |
Auger electron |
|
1.26900e-03 |
7.057e-01 |
Conversion electron |
|
2.26676e-03 |
1.367e+00 |
Auger electron |
|
2.60792e-03 |
2.536e-01 |
Auger electron |
|
2.97223e-03 |
1.289e-02 |
Auger electron |
|
1.69094e-02 |
2.057e-01 |
Auger electron |
|
1.95952e-02 |
8.055e-02 |
Auger electron |
|
2.10688e-02 |
8.035e-02 |
Conversion electron |
|
2.39653e-02 |
1.702e-02 |
Conversion electron |
Useful Links
Isotope decay characteristics are periodically updated as better measurements can be made - changes that may not be reflected on this page. Please see useful links:
National Nuclear Data Center (NNDC): https://www.nndc.bnl.gov/nudat3/mird/
International Atomic Energy Agency (IAEA) Livechart: https://www-nds.iaea.org/relnsd/vcharthtml/VChartHTML.html
Reference Links
ICRP Report 107: https://www.icrp.org/publication.asp?id=ICRP%20Publication%20107
Graves et al. Dose Point Kernels: https://doi.org/10.1002/mp.13789
MIRD Decay Schemes 2nd Edition: https://sites.snmmi.org/SNMMI-MAIN/iCore/Store/StoreLayouts/Item_Detail.aspx?iProductCode=0-932004-80-6
MIRDsoft MIRDspecs version 20250101 (www.mirdsoft.org)
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