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Radionuclide Dosimetric Data Sheets
Neodymium-135
Summary data
General
Classification
Isotope: Nd-135
Atomic number (Z): 60
Mass number (A): 135
Neutron number (N): 75
Radioactive decay
Decay modes: β+, Electron capture
Half-life: 12.4 [m]
Decay constant: 9.3165e-04 [1/s]
Daughters: Pr-135 (100.0%)
Radioactive daughters: Pr-135
Dosimetric constants
Mean alpha energy: 0.0 [MeV]
Mean electron energy: 1.05508 [MeV]
Mean photon energy: 1.26172 [MeV]
Air kerma rate constant, Γ10: 2.290e-17 [Gy·m2/Bq·s]
Air kerma coefficient, Kair: 4.872e-17 [Gy·m2/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or
electrons), Δwp: 1.690e-13 [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-:
1.690e-13 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δp: 2.022e-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/Nd-135 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/Nd-135 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/Nd-135 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/Nd-135 Summary Spectrum.csv
|
Energy [MeV] |
Yield [#/nt] if > 0.01 |
Radiation type |
|
1.56414e-05 |
1.735e+01 |
X-ray |
|
8.20379e-04 |
1.273e-02 |
X-ray |
|
5.01954e-03 |
6.411e-02 |
X-ray |
|
5.48691e-03 |
4.399e-02 |
X-ray |
|
5.57140e-03 |
1.310e-02 |
X-ray |
|
5.83581e-03 |
1.049e-02 |
X-ray |
|
3.55671e-02 |
1.812e-01 |
X-ray |
|
3.60557e-02 |
3.308e-01 |
X-ray |
|
4.06843e-02 |
3.242e-02 |
X-ray |
|
4.07816e-02 |
6.277e-02 |
X-ray |
|
4.14800e-02 |
2.232e-01 |
Gamma |
|
4.17904e-02 |
1.348e-02 |
X-ray |
|
1.12620e-01 |
4.464e-02 |
Gamma |
|
1.64700e-01 |
3.968e-02 |
Gamma |
|
1.85070e-01 |
2.728e-02 |
Gamma |
|
2.04090e-01 |
4.960e-01 |
Gamma |
|
2.06000e-01 |
2.976e-02 |
Gamma |
|
2.33400e-01 |
1.240e-02 |
Gamma |
|
2.45400e-01 |
3.373e-02 |
Gamma |
|
2.56100e-01 |
2.629e-02 |
Gamma |
|
2.71900e-01 |
2.430e-02 |
Gamma |
|
3.16700e-01 |
1.091e-02 |
Gamma |
|
3.72800e-01 |
2.232e-02 |
Gamma |
|
3.85900e-01 |
1.438e-02 |
Gamma |
|
4.15000e-01 |
1.091e-02 |
Gamma |
|
4.41100e-01 |
1.428e-01 |
Gamma |
|
4.51900e-01 |
4.216e-02 |
Gamma |
|
4.75800e-01 |
8.184e-02 |
Gamma |
|
4.82600e-01 |
1.686e-02 |
Gamma |
|
4.93400e-01 |
1.438e-02 |
Gamma |
|
5.01600e-01 |
9.622e-02 |
Gamma |
|
5.11000e-01 |
1.334e+00 |
Annihilation photon |
|
5.31900e-01 |
1.934e-02 |
Gamma |
|
5.93700e-01 |
3.770e-02 |
Gamma |
|
6.16500e-01 |
1.885e-02 |
Gamma |
|
9.66600e-01 |
2.579e-02 |
Gamma |
|
1.17210e+00 |
1.091e-02 |
Gamma |
|
1.48070e+00 |
1.141e-02 |
Gamma |
|
1.75200e+00 |
1.984e-02 |
Gamma |
|
1.14826e+00 |
1.618e-02 |
Positron |
|
1.15992e+00 |
1.112e-02 |
Positron |
|
1.32603e+00 |
7.482e-02 |
Positron |
|
1.33616e+00 |
1.820e-02 |
Positron |
|
1.37723e+00 |
1.820e-02 |
Positron |
|
1.44470e+00 |
4.448e-02 |
Positron |
|
1.45669e+00 |
6.471e-02 |
Positron |
|
1.46785e+00 |
4.347e-02 |
Positron |
|
1.53080e+00 |
1.415e-01 |
Positron |
|
1.58333e+00 |
9.099e-02 |
Positron |
|
1.60171e+00 |
5.055e-02 |
Positron |
|
1.66827e+00 |
4.044e-02 |
Positron |
|
1.29601e-05 |
2.041e+00 |
Auger electron |
|
3.35201e-05 |
1.657e-02 |
Auger electron |
|
7.10453e-05 |
2.170e+00 |
Auger electron |
|
8.70561e-05 |
6.105e+00 |
Auger electron |
|
1.42931e-04 |
1.023e+00 |
Auger electron |
|
4.41119e-04 |
3.280e-01 |
Auger electron |
|
6.69828e-04 |
2.148e+00 |
Auger electron |
|
8.31102e-04 |
1.530e-01 |
Auger electron |
|
4.05100e-03 |
8.175e-01 |
Auger electron |
|
4.96052e-03 |
2.733e-01 |
Auger electron |
|
5.90762e-03 |
2.258e-02 |
Auger electron |
|
2.93378e-02 |
3.691e-02 |
Auger electron |
|
3.45832e-02 |
1.756e-02 |
Auger electron |
|
3.46802e-02 |
3.401e-01 |
Conversion electron |
|
3.50371e-02 |
1.088e-01 |
Conversion electron |
|
3.55256e-02 |
1.110e-01 |
Conversion electron |
|
4.02516e-02 |
1.213e-01 |
Conversion electron |
|
4.14800e-02 |
3.303e-02 |
Conversion electron |
|
7.06100e-02 |
2.929e-01 |
Conversion electron |
|
1.05820e-01 |
5.077e-02 |
Conversion electron |
|
1.11392e-01 |
1.440e-02 |
Conversion electron |
|
1.22690e-01 |
1.089e-02 |
Conversion electron |
|
1.62080e-01 |
7.604e-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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