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Radionuclide Dosimetric Data Sheets
Palladium-103
Summary data
General
Classification
Isotope: Pd-103
Atomic number (Z): 46
Mass number (A): 103
Neutron number (N): 57
Radioactive decay
Decay modes: Electron capture
Half-life: 16.99 [d]
Decay constant: 4.7216e-07 [1/s]
Daughters: Rh-103m (99.9%), Rh-103 (0.125%)
Radioactive daughters: Rh-103m
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.00581 [MeV]
Mean photon energy: 0.01457 [MeV]
Air kerma rate constant, Γ10: 9.036e-18 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 9.036e-18 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 9.309e-16 [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-:
9.309e-16 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.334e-15
[Gy·kg/Bq·s]
Dose point kernels (plot)
Dose point kernel source: Graves, et al. Medical Physics. 2019 Nov.; 46(11):5284-5293.
Note: Bins are spaced every 0.1 mm until a radius of 10 cm, and every 1 mm until a radius of 2 m.
Download tabulated dose point kernel file here: www.mirdsoft.org/products/MIRDspecs/Pd-103 DPK.csv
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-103 Summary 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-103 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
9.95806e-06 |
8.437e+00 |
X-ray |
|
2.68654e-03 |
2.511e-02 |
X-ray |
|
2.82846e-03 |
1.171e-02 |
X-ray |
|
2.00395e-02 |
2.000e-01 |
X-ray |
|
2.01865e-02 |
3.787e-01 |
X-ray |
|
2.26708e-02 |
3.220e-02 |
X-ray |
|
2.26963e-02 |
6.262e-02 |
X-ray |
|
2.31362e-02 |
1.237e-02 |
X-ray |
|
3.35190e-05 |
3.338e+00 |
Auger electron |
|
1.10633e-04 |
1.922e-01 |
Auger electron |
|
1.18121e-04 |
8.146e-01 |
Auger electron |
|
2.60381e-04 |
1.995e+00 |
Auger electron |
|
3.07925e-04 |
1.302e-02 |
Auger electron |
|
2.26680e-03 |
7.697e-01 |
Auger electron |
|
2.60805e-03 |
1.428e-01 |
Auger electron |
|
1.69094e-02 |
1.152e-01 |
Auger electron |
|
1.95952e-02 |
4.510e-02 |
Auger 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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