<= Return to MIRDspec isotope database
Radionuclide Dosimetric Data Sheets
Zinc-71m
Summary data
General
Classification
Isotope: Zn-71m
Atomic number (Z): 30
Mass number (A): 71
Neutron number (N): 41
Radioactive decay
Decay modes: β-
Half-life: 3.96 [h]
Decay constant: 4.8621e-05 [1/s]
Daughters: Ga-71 (100.0%)
Radioactive daughters: None
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 0.54303 [MeV]
Mean photon energy: 1.56064 [MeV]
Air kerma rate constant, Γ10: 5.825e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 5.825e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 8.700e-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-:
8.700e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.500e-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/Zn-71m 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/Zn-71m 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/Zn-71m 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/Zn-71m Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.57866e-05 |
3.842e-02 |
X-ray |
|
1.21480e-01 |
2.883e-02 |
Gamma |
|
1.42600e-01 |
5.580e-02 |
Gamma |
|
3.86280e-01 |
9.300e-01 |
Gamma |
|
3.89870e-01 |
2.604e-02 |
Gamma |
|
4.53080e-01 |
1.116e-02 |
Gamma |
|
4.87340e-01 |
6.231e-01 |
Gamma |
|
5.11550e-01 |
2.837e-01 |
Gamma |
|
5.96070e-01 |
2.790e-01 |
Gamma |
|
6.20190e-01 |
5.673e-01 |
Gamma |
|
7.53410e-01 |
3.255e-02 |
Gamma |
|
7.71260e-01 |
2.046e-02 |
Gamma |
|
9.64700e-01 |
4.278e-02 |
Gamma |
|
9.88600e-01 |
1.209e-02 |
Gamma |
|
1.10740e+00 |
2.046e-02 |
Gamma |
|
2.49208e-01 |
6.731e-02 |
Beta |
|
5.72786e-01 |
8.941e-01 |
Beta |
|
1.17408e-05 |
1.057e-02 |
Auger 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)
<= Return to MIRDspec isotope database
