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Radionuclide Dosimetric Data Sheets
Molybdenum-101
Summary data
General
Classification
Isotope: Mo-101
Atomic number (Z): 42
Mass number (A): 101
Neutron number (N): 59
Radioactive decay
Decay modes: β-
Half-life: 14.61 [m]
Decay constant: 7.9072e-04 [1/s]
Daughters: Tc-101 (100.0%)
Radioactive daughters: Tc-101
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.5524 [MeV]
Mean photon energy: 1.47059 [MeV]
Air kerma rate constant, Γ10: 5.106e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.106e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 8.850e-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-:
8.850e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.356e-13
[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/Mo-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/Mo-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/Mo-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/Mo-101 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
7.87552e-06 |
1.666e+01 |
X-ray |
|
2.41453e-03 |
3.330e-02 |
X-ray |
|
9.31700e-03 |
2.103e-02 |
Gamma |
|
1.82141e-02 |
1.480e-02 |
X-ray |
|
1.83344e-02 |
2.813e-02 |
X-ray |
|
8.09200e-02 |
3.733e-02 |
Gamma |
|
1.91920e-01 |
1.821e-01 |
Gamma |
|
1.95930e-01 |
2.768e-02 |
Gamma |
|
4.08690e-01 |
1.530e-02 |
Gamma |
|
4.99650e-01 |
1.395e-02 |
Gamma |
|
5.05920e-01 |
1.162e-01 |
Gamma |
|
5.12830e-01 |
1.402e-02 |
Gamma |
|
5.90100e-01 |
1.111e-02 |
Gamma |
|
5.90100e-01 |
1.921e-01 |
Gamma |
|
6.08340e-01 |
1.020e-02 |
Gamma |
|
6.42710e-01 |
1.215e-02 |
Gamma |
|
6.95560e-01 |
6.665e-02 |
Gamma |
|
7.13040e-01 |
3.332e-02 |
Gamma |
|
8.71080e-01 |
1.712e-02 |
Gamma |
|
8.77390e-01 |
3.223e-02 |
Gamma |
|
9.34210e-01 |
4.115e-02 |
Gamma |
|
1.01247e+00 |
1.302e-01 |
Gamma |
|
1.16098e+00 |
4.024e-02 |
Gamma |
|
1.18676e+00 |
1.011e-02 |
Gamma |
|
1.19994e+00 |
1.796e-02 |
Gamma |
|
1.25110e+00 |
4.716e-02 |
Gamma |
|
1.30400e+00 |
2.713e-02 |
Gamma |
|
1.35589e+00 |
1.694e-02 |
Gamma |
|
1.38271e+00 |
1.129e-02 |
Gamma |
|
1.53249e+00 |
6.137e-02 |
Gamma |
|
1.59926e+00 |
1.748e-02 |
Gamma |
|
1.67391e+00 |
1.675e-02 |
Gamma |
|
1.75972e+00 |
1.005e-02 |
Gamma |
|
1.84024e+00 |
1.402e-02 |
Gamma |
|
2.03210e+00 |
6.592e-02 |
Gamma |
|
2.04124e+00 |
2.149e-02 |
Gamma |
|
2.28727e-01 |
2.167e-02 |
Beta |
|
2.57341e-01 |
2.732e-02 |
Beta |
|
2.60952e-01 |
2.039e-01 |
Beta |
|
2.95190e-01 |
1.485e-01 |
Beta |
|
3.21429e-01 |
2.583e-02 |
Beta |
|
3.59347e-01 |
3.266e-02 |
Beta |
|
3.72272e-01 |
1.940e-02 |
Beta |
|
4.39267e-01 |
2.781e-02 |
Beta |
|
4.40521e-01 |
1.900e-02 |
Beta |
|
4.49201e-01 |
1.534e-02 |
Beta |
|
5.69513e-01 |
6.532e-02 |
Beta |
|
7.00203e-01 |
7.423e-02 |
Beta |
|
7.64484e-01 |
1.019e-02 |
Beta |
|
8.93230e-01 |
9.204e-02 |
Beta |
|
1.07881e+00 |
1.336e-01 |
Beta |
|
2.92844e-05 |
7.336e+00 |
Auger electron |
|
1.05500e-04 |
1.452e+00 |
Auger electron |
|
1.12305e-04 |
9.665e-01 |
Auger electron |
|
2.04818e-04 |
3.670e+00 |
Auger electron |
|
2.52553e-04 |
3.134e-02 |
Auger electron |
|
2.06721e-03 |
1.212e+00 |
Auger electron |
|
2.35257e-03 |
1.915e-01 |
Auger electron |
|
3.25860e-03 |
5.046e-01 |
Conversion electron |
|
3.48310e-03 |
6.808e-02 |
Conversion electron |
|
3.60340e-03 |
5.422e-02 |
Conversion electron |
|
5.85605e-03 |
1.149e-01 |
Conversion electron |
|
6.28100e-03 |
2.136e-02 |
Conversion electron |
|
6.29460e-03 |
6.106e-01 |
Conversion electron |
|
6.51910e-03 |
8.067e-02 |
Conversion electron |
|
6.63940e-03 |
6.451e-02 |
Conversion electron |
|
8.89205e-03 |
1.387e-01 |
Conversion electron |
|
9.31700e-03 |
2.590e-02 |
Conversion electron |
|
1.29284e-02 |
1.017e-02 |
Conversion electron |
|
1.54229e-02 |
1.025e-02 |
Auger electron |
|
5.99080e-02 |
1.675e-02 |
Conversion electron |
|
1.70908e-01 |
4.519e-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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