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Radionuclide Dosimetric Data Sheets

Krypton-88

Isotope:  Kr-88
Atomic number (Z):  36
Mass number (A):  88
Neutron number (N):  52

Decay modes:  β-
Half-life:  2.84 [h]
Decay constant:  6.7796e-05 [1/s]
Daughters:  Rb-88 (100.0%)
Radioactive daughters:  Rb-88

Mean alpha energy:  0.0 [MeV]
Mean electron energy:  0.36887 [MeV]
Mean photon energy:  1.95383 [MeV]
Air kerma rate constant, Γ₁₀:  6.183e-17 [Gy·m²/Bq·s]
Air kerma coefficient, K_air:  6.183e-17 [Gy·m²/Bq·s]
Equilibrium dose constant for weakly-penetrating radiations (α and/or electrons), Δ_wp:  5.910e-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-:  5.910e-14 [Gy·kg/Bq·s]
Equilibrium dose constant for photons, Δ_p:  3.130e-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/Kr-88 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/Kr-88 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/Kr-88 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/Kr-88 Summary Spectrum.csv

 

Energy [MeV]	Yield [#/nt] if > 0.01	Radiation type
1.52794e-05	1.266e+00	X-ray
1.32919e-02	2.366e-02	X-ray
1.33539e-02	4.553e-02	X-ray
2.75130e-02	1.924e-02	Gamma
1.65980e-01	3.104e-02	Gamma
1.96301e-01	2.598e-01	Gamma
3.62226e-01	2.249e-02	Gamma
8.34830e-01	1.298e-01	Gamma
9.85780e-01	1.315e-02	Gamma
1.14133e+00	1.284e-02	Gamma
1.25067e+00	1.121e-02	Gamma
1.36950e+00	1.477e-02	Gamma
1.51839e+00	2.152e-02	Gamma
1.52977e+00	1.093e-01	Gamma
2.02984e+00	4.529e-02	Gamma
2.03541e+00	3.737e-02	Gamma
2.19584e+00	1.318e-01	Gamma
2.23177e+00	3.391e-02	Gamma
2.39211e+00	3.460e-01	Gamma
1.09454e-01	2.623e-02	Beta
1.65376e-01	6.631e-01	Beta
2.26544e-01	9.007e-02	Beta
4.41025e-01	1.930e-02	Beta
6.91884e-01	1.010e-02	Beta
8.35443e-01	1.287e-02	Beta
1.13590e+00	2.078e-02	Beta
1.23297e+00	1.386e-01	Beta
1.26043e-05	3.709e-01	Auger electron
6.49791e-05	3.721e-01	Auger electron
7.35551e-05	1.502e-01	Auger electron
1.05863e-04	2.885e-02	Auger electron
1.48954e-03	1.410e-01	Auger electron
1.61107e-03	1.141e-02	Auger electron
1.14024e-02	3.017e-02	Auger electron
1.23540e-02	1.058e-01	Conversion electron
2.54650e-02	1.111e-02	Conversion electron
1.81142e-01	1.150e-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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