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Radionuclide Dosimetric Data Sheets
Rhodium-101
Summary data
General
Classification
Isotope: Rh-101
Atomic number (Z): 45
Mass number (A): 101
Neutron number (N): 56
Radioactive decay
Decay modes: Electron capture
Half-life: 3.3 [y]
Decay constant: 6.6560e-09 [1/s]
Daughters: Ru-101 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.02665 [MeV]
Mean photon energy: 0.28781 [MeV]
Air kerma rate constant, Γ10: 2.034e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 2.034e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 4.270e-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-:
4.270e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.611e-14
[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/Rh-101 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/Rh-101 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/Rh-101 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
8.90907e-06 |
1.028e+01 |
X-ray |
|
2.54865e-03 |
2.732e-02 |
X-ray |
|
2.67727e-03 |
1.260e-02 |
X-ray |
|
1.91152e-02 |
2.251e-01 |
X-ray |
|
1.92483e-02 |
4.272e-01 |
X-ray |
|
2.16049e-02 |
3.584e-02 |
X-ray |
|
2.16277e-02 |
6.971e-02 |
X-ray |
|
2.20364e-02 |
1.351e-02 |
X-ray |
|
1.27226e-01 |
6.804e-01 |
Gamma |
|
1.98010e-01 |
7.300e-01 |
Gamma |
|
3.25230e-01 |
1.183e-01 |
Gamma |
|
3.14487e-05 |
4.266e+00 |
Auger electron |
|
1.08216e-04 |
2.315e-01 |
Auger electron |
|
1.14079e-04 |
9.638e-01 |
Auger electron |
|
2.31949e-04 |
2.361e+00 |
Auger electron |
|
2.77548e-04 |
1.737e-02 |
Auger electron |
|
2.15907e-03 |
9.168e-01 |
Auger electron |
|
2.46872e-03 |
1.563e-01 |
Auger electron |
|
1.61570e-02 |
1.420e-01 |
Auger electron |
|
1.86981e-02 |
5.464e-02 |
Auger electron |
|
1.05139e-01 |
1.032e-01 |
Conversion electron |
|
1.24022e-01 |
1.144e-02 |
Conversion electron |
|
1.75923e-01 |
3.118e-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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