Actinium (Z=89)
215Ac 217Ac 227Ac
Recommended† magnetic dipole moments
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Method Recommended Tables
227Ac 0 21.77 y 3/2- +1.1(1)/1.22(17) INDC(NDS)-0794


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
227Ac 0 21.77 y 3/2- +1.74(10) 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
227Ac 0. 21.77 y 3/2- +1.1(1) O 1955FR26 10.1103/PhysRev.98.1514
+1.7(2) O 1955FR26
2013STZZ		 10.1103/PhysRev.98.1514

† 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.