Mössbauer isotopes
in the energy range 6 keV - 30 keV
and with lifetimes greater than 1 ns.

Displayed are the following quantities:
Mössbauer isotope, transition energy, half life time and energy width of the Mössbauer level, internal conversion factor, natural abundance of the isotope.

Isotope E [keV] t1/2 [ns] Γ[neV] α ab.[%]
40K 29.56(7) 4.25(6) 107.3 6.6(5) 0.012
57Fe 14.412497(3) 97.81(14) 004.665 8.21(12) 2.14
73Ge 13.263(15) 2953(23) 000.154 1095(55) 7.76
83Kr 09.405(1) 147(4) 003.10 19.6(7) 11.55
119Sn 23.871(7) 17.75(12) 025.7 5.12(10) 8.58
129I 27.77(2) 16.8(2) 027.15 5.1(3) 0.0
133Ba 12.29(5) 8.1(2) 056.3 110(5) 0.0
149Sm 22.494(11) 7.12(11) 064.07 50(10) 13.83
151Eu 21.5417(5) 9.7(3) 047.03 28.60(15) 47.82
161Dy 25.655(3) 28.2(9) 016.18 2.9(3) 18.88
169Tm 08.41031(2) 4.00(10) 114.05 268(5) 100.00
181Ta 06.2155(2) 6050(120) 000.075 70.5(3) 99.99

Reference: Mössbauer Effect Data Center, Asheville, North Carolina 28804-3299, USA; in case of Eu and Ta we have used updated numbers which were recently determined at ESRF.


Last modified 24/06/02 03:25 PM by Ernst Schreier