Protactinium (Z=91)
228Pa 230Pa 231Pa 233Pa
Recommended† magnetic dipole moments
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Method Recommended Tables
231Pa 0 3.3x104 y 3/2- 1.99(2) ENDOR INDC(NDS)-0794


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
231Pa 0 3.3 104 y 3/2- [-1.72(5)] not measured INDC(NDS)-0833
84 45.1 ns 5/2+ +0.7(2) ME 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
231Pa 0. 3.3×104 y 3/2- 2.01(2) ENDOR 1961AX01 10.1103/PhysRev.121.1630
-1.72(5) est. from B(E2) 1978FR28
2013STZZ		 10.1016/0375-9601(78)90223-2
84. 44 ns 5/2+ +0.7(2) [231Pa] ME 1978FR28
2013STZZ		 10.1016/0375-9601(78)90223-2

† 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.