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Radionuclide Dosimetric Data Sheets
Cadmium-107
Summary data
General
Classification
Isotope: Cd-107
Atomic number (Z): 48
Mass number (A): 107
Neutron number (N): 59
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 6.5 [h]
Decay constant: 2.9622e-05 [1/s]
Daughters: Ag-107 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.08697 [MeV]
Mean photon energy: 0.0337 [MeV]
Air kerma rate constant, Γ10: 1.172e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.180e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.393e-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-:
1.393e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 5.399e-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/Cd-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/Cd-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/Cd-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/Cd-107 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.20787e-05 |
1.441e+01 |
X-ray |
|
2.97344e-03 |
5.088e-02 |
X-ray |
|
3.14510e-03 |
2.846e-02 |
X-ray |
|
2.19609e-02 |
3.101e-01 |
X-ray |
|
2.21389e-02 |
5.843e-01 |
X-ray |
|
2.48888e-02 |
5.095e-02 |
X-ray |
|
2.49204e-02 |
9.900e-02 |
X-ray |
|
2.54206e-02 |
1.036e-02 |
X-ray |
|
2.54258e-02 |
2.003e-02 |
X-ray |
|
9.31240e-02 |
4.678e-02 |
Gamma |
|
3.78502e-05 |
5.244e+00 |
Auger electron |
|
1.27677e-04 |
1.466e+00 |
Auger electron |
|
1.34741e-04 |
2.772e-01 |
Auger electron |
|
3.18958e-04 |
3.553e+00 |
Auger electron |
|
3.70927e-04 |
1.844e-02 |
Auger electron |
|
2.49532e-03 |
1.368e+00 |
Auger electron |
|
2.90297e-03 |
2.965e-01 |
Auger electron |
|
3.32850e-03 |
1.705e-02 |
Auger electron |
|
1.84717e-02 |
1.499e-01 |
Auger electron |
|
2.14605e-02 |
6.056e-02 |
Auger electron |
|
6.76350e-02 |
4.323e-01 |
Conversion electron |
|
8.93406e-02 |
3.491e-02 |
Conversion electron |
|
8.95959e-02 |
1.807e-01 |
Conversion electron |
|
8.97740e-02 |
2.068e-01 |
Conversion electron |
|
9.25555e-02 |
8.689e-02 |
Conversion electron |
|
9.31240e-02 |
1.506e-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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