Open Access

Table 1.

Half-life of the most important γ-emitting radioactive nuclides in concrete given by order of their respective Γpower.

Nuclide Half-life Nuclide Half-life Nuclide Half-life
24Na 14.96 h 29Al 6.56 m 19Ne 17.2 s
28Al 2.24 m 23Mg 11.3 s 42K 12.36 h
16N 7.1 s 60Co 5.27 y 17F 1.07 m
22Na 2.6 y 13N 9.96 m 49Ca 8.72 m
15O 2.04 m 18F 1.83 h 14O 1.18 m
26mAl 6.34 s 25Al 7.18 s 52Mn 5.59 d
11C 20.36 m 54Mn 312.15 d 34mCl 32.1 m
38K 7.61 m 152Eu 13.53 y 30P 2.5 m
20F 11 s 21Na 22.5 s 43K 22.2 h
27Mg 9.45 m 56Mn 2.58 h

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