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Radionuclide Dosimetric Data Sheets

Hafnium-183

Isotope:  Hf-183
Atomic number (Z):  72
Mass number (A):  183
Neutron number (N):  111

Decay modes:  β-
Half-life:  1.067 [h]
Decay constant:  1.8045e-04 [1/s]
Daughters:  Ta-183 (100.0%)
Radioactive daughters:  Ta-183

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.44782 [MeV]
Mean photon energy:  0.77491 [MeV]
Air kerma rate constant, Γ₁₀:  2.871e-17 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  2.871e-17 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  7.175e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for alphas, Δ_α:  0.000e+00 [Gy·kg/Bq·s]
Equilibrium dose constant for betas/electrons, Δ_β-,β+,e-:  7.175e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  1.242e-13 [Gy·kg/Bq·s]

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/Hf-183 DPK.csv

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/Hf-183 Summary Spectrum.csv

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/Hf-183 Beta Spectrum.csv

 

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/Hf-183 Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
2.50636e-05	2.956e+00	X-ray
8.13762e-03	3.522e-02	X-ray
9.36070e-03	2.270e-02	X-ray
5.64020e-02	7.868e-02	X-ray
5.76858e-02	1.371e-01	X-ray
6.51037e-02	1.468e-02	X-ray
6.53809e-02	2.836e-02	X-ray
7.31730e-02	3.838e-01	Gamma
3.15870e-01	1.232e-02	Gamma
3.97858e-01	2.929e-02	Gamma
4.59070e-01	2.727e-01	Gamma
7.83753e-01	6.565e-01	Gamma
1.47023e+00	2.727e-02	Gamma
1.38070e-01	3.284e-02	Beta
3.93950e-01	6.978e-01	Beta
5.57158e-01	2.565e-01	Beta
1.19100e-05	2.557e-01	Auger electron
2.73572e-05	3.640e-01	Auger electron
1.60483e-04	1.007e+00	Auger electron
2.97413e-04	3.252e-02	Auger electron
3.08435e-04	1.855e-01	Auger electron
6.70187e-04	3.888e-02	Auger electron
1.41746e-03	4.596e-01	Auger electron
1.59730e-03	2.666e-02	Auger electron
5.60800e-03	2.541e-01	Conversion electron
6.31750e-03	1.487e-01	Auger electron
8.00257e-03	5.602e-02	Auger electron
6.15170e-02	2.602e-02	Conversion electron
6.32938e-02	1.171e-02	Conversion electron
7.09889e-02	1.091e-02	Conversion electron
3.91505e-01	1.546e-02	Conversion electron

 

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

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

 

 

 

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