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Radionuclide Dosimetric Data Sheets
Dysprosium-150
Summary data
General
Classification
Isotope: Dy-150
Atomic number (Z): 66
Mass number (A): 150
Neutron number (N): 84
Radioactive decay
Decay modes: α, β+, Electron capture
Half-life: 7.17 [m]
Decay constant: 1.6112e-03 [1/s]
Daughters: Tb-150 (64.0%), Gd-146 (36.0%)
Radioactive daughters: Tb-150, Gd-146
Dosimetric constants
Mean alpha energy: 1.5663 [MeV]
Mean electron energy: 0.007 [MeV]
Mean photon energy: 0.27847 [MeV]
Air kerma rate constant, Γ10: 1.104e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 1.106e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 2.521e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δα: 2.509e-13
[Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δβ-,β+,e-:
1.122e-15 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 4.462e-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/Dy-150 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/Dy-150 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/Dy-150 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/Dy-150 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.38228e-05 |
5.695e+00 |
X-ray |
|
6.26069e-03 |
4.261e-02 |
X-ray |
|
6.98190e-03 |
2.788e-02 |
X-ray |
|
4.37992e-02 |
1.447e-01 |
X-ray |
|
4.45546e-02 |
2.593e-01 |
X-ray |
|
5.03066e-02 |
2.653e-02 |
X-ray |
|
5.04632e-02 |
5.131e-02 |
X-ray |
|
5.17791e-02 |
1.128e-02 |
X-ray |
|
3.97200e-01 |
6.400e-01 |
Gamma |
|
1.73725e-05 |
3.392e-01 |
Auger electron |
|
1.22009e-04 |
2.602e+00 |
Auger electron |
|
1.35523e-04 |
1.602e-01 |
Auger electron |
|
1.97292e-04 |
4.123e-01 |
Auger electron |
|
6.19945e-04 |
8.326e-02 |
Auger electron |
|
9.60929e-04 |
8.816e-01 |
Auger electron |
|
1.13634e-03 |
5.012e-02 |
Auger electron |
|
4.95178e-03 |
3.187e-01 |
Auger electron |
|
6.15962e-03 |
1.114e-01 |
Auger electron |
|
3.58945e-02 |
2.154e-02 |
Auger electron |
|
4.25487e-02 |
1.071e-02 |
Auger electron |
|
4.23500e+00 |
3.600e-01 |
Alpha |
|
1.16103e-01 |
3.600e-01 |
Alpha recoil |
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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