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Radionuclide Dosimetric Data Sheets
Rhodium-107
Summary data
General
Classification
Isotope: Rh-107
Atomic number (Z): 45
Mass number (A): 107
Neutron number (N): 62
Radioactive decay
Decay modes: β-
Half-life: 21.7 [m]
Decay constant: 5.3237e-04 [1/s]
Daughters: Pd-107 (100.0%)
Radioactive daughters: Pd-107
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.44067 [MeV]
Mean photon energy: 0.31326 [MeV]
Air kerma rate constant, Γ10: 1.172e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.172e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 7.060e-14 [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-:
7.060e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 5.019e-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-107 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-107 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/Rh-107 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/Rh-107 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
7.85955e-06 |
1.727e-01 |
X-ray |
|
2.77580e-01 |
1.700e-02 |
Gamma |
|
3.02770e-01 |
6.600e-01 |
Gamma |
|
3.12210e-01 |
4.800e-02 |
Gamma |
|
3.21840e-01 |
2.260e-02 |
Gamma |
|
3.48210e-01 |
2.270e-02 |
Gamma |
|
3.67310e-01 |
1.910e-02 |
Gamma |
|
3.92470e-01 |
8.800e-02 |
Gamma |
|
5.67700e-01 |
1.150e-02 |
Gamma |
|
6.70050e-01 |
2.220e-02 |
Gamma |
|
2.85174e-01 |
9.063e-02 |
Beta |
|
3.26677e-01 |
1.813e-02 |
Beta |
|
3.99563e-01 |
7.049e-02 |
Beta |
|
4.33618e-01 |
4.229e-02 |
Beta |
|
4.37667e-01 |
6.444e-01 |
Beta |
|
5.69354e-01 |
1.309e-01 |
Beta |
|
3.82068e-05 |
6.502e-02 |
Auger electron |
|
1.26225e-04 |
1.709e-02 |
Auger electron |
|
2.92834e-04 |
4.224e-02 |
Auger electron |
|
2.38220e-03 |
1.617e-02 |
Auger electron |
|
2.78449e-01 |
1.131e-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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