Actinium (Z=89)
212Ac 213Ac 214Ac 215Ac 217Ac 227Ac 228Ac 229Ac
Recommended† magnetic dipole moments
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Method Recommended Tables
215Ac 0 0.17 s 9/2- +4.14(6) IGLIS INDC(NDS)-0915
1621 30 ns (17/2-) 7.74(13) TDPAD INDC(NDS)-0816
1796 185 ns (21/2-) 9.56(16) TDPAD INDC(NDS)-0816
2438+x 335 ns (29/2+) 14.98(22) TDPAD INDC(NDS)-0816


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
215Ac 0 0.17 s 9/2- +0.04(10) IGLIS INDC(NDS)-0833


Compiled‡ magnetic dipole and electric quadrupole moments from published articles
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Q [b] Ref. Std Method NSR keyword doi
1621 30 ns (17/2-) 7.82(16) TDPAD 1983DE08 10.1007/BF01433610
1796 185 ns (21/2-) 9.7(2) TDPAD 1983DE08 10.1007/BF01433610
2438+x. 335 ns (29/2+) 15.1(3) TDPAD 1983DE08 10.1007/BF01433610
215Ac 0 0.17 s 9/2- +4.14(6) IGLIS 2017GR18 PhysRevC.96.054331
+0.04(10) [227Ac Q calculated] IGLIS 2017GR18 PhysRevC.96.054331

† Recommended magnetic moments are for the bare nucleus with published results corrected consistently for diamagnetism (including error estimate).
  Where appropriate published results are also adjusted to the most recent adopted half-life for the state.
  Recommended quadrupole moments are adjusted using the best electric field gradient calculation for the system concerned.
  For details see the Reports referenced.

‡ In this listing published results are given without adjustment or correction.