Table 1 Half-life values for 154Dy available from literature.

From: High precision half-life measurement of the extinct radio-lanthanide Dysprosium-154

Year

Half-life

(My)

Comments

Reference

1961

1.5 ± 0.9

154Gd(α,4n)154Dy @48 MeV α-particles, number of 154Dy atoms estimated assuming cross section of 1 barn

25

1965

2.9 ± 1.5

Nuclear structure derived from α-spectrum

26

1971

4

Study based on the enhanced α-decay of 154mDy

27

1985

3.0 ± 1.5

Revision of previous works with updated nuclear data

28

1991

1.2

Theoretical calculation

29