Low-temperature nuclear orientation of neutron-deficient terbium nuclei

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Published under licence by IOP Publishing Ltd
, , Citation I Berkes et al 1983 J. Phys. G: Nucl. Phys. 9 213 DOI 10.1088/0305-4616/9/2/014

0305-4616/9/2/213

Abstract

152,153,154m1,154m2,156,160Tb isotopes have been oriented in a gadolinium matrix at low temperature. A new nuclear thermometer and a consistent evaluation procedure have been developed. The following nuclear moments are derived from the measurements. 156Tb(3-): mod mu mod =1.68(21) mu N, Q=+1.9(7) b; 154Tbm1(3-); mod mu mod =1.8(39) mu N, Q=+2.4(13) b; 153Tb(5/2+): mod mu mod =3.5(7) mu N; 152Tb(2-): mod mu mod =0.60(44) mu N, Q=+0.4(14) b. Using a reasonable approximation for the electric quadrupole moments mod mu (152Tb; 2- mod =0.9(1) mu N and mod mu (154Tbm2(7-) mod =0.9(3) mu N are obtained. The magnetic moments of the odd-odd nuclei allow their proton and neutron configurations to be determined. Experimental magnetic moments are confronted with rotor+quasiparticle calculations involving Coriolis mixing. Reduced electromagnetic transition probabilities are compared with rotational-model calculations using the measured static electromagnetic moments.

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10.1088/0305-4616/9/2/014