162TB 162GD B- DECAY (8.4 M) 1982GE07,1970CH02 24NDS 202403
162TB H TYP=FUL$AUT=N. NICA$CIT=NDS 195, 1 (2024)$CUT=19-Sep-2023$
162TB c 1982Ge07: {+162}Gd from {+252}Cf spontaneous fission with
162TB2c radiochemistry. The |g-ray energies measured with Ge detector.
162TB c 1970Ch02: {+162}Gd from double-neutron capture in enriched (94.8%)
162TB2c {+160}Gd with radiochemistry. The |g-ray energies measured with Ge and
162TB3c Si(Li) detectors and |b particles with Si(Li) detector. |g(x ray) and
162TB4c |g|b coincidences measured.
162TB c 1967Wa05: {+162}Gd from double-neutron capture in enriched (94%)
162TB2c {+160}Gd with radiochemistry. The |g rays measured with NaI(Tl)
162TB3c detectors.
162TB cB E$From 1970Ch02.
162TB cB IB$From evaluator's assumption that 100% of the decays
162TB2cB depopulate the levels at 341 and 442 keV (that is, no |b{+-} feeding of
162TB3cB the ground state and the 39 level) and no |g feeding of the 341-keV
162TB4cB level. From log| {Ift}|>5.9 for the g.s. to g.s. |b{+-} transition
162TB5cB (1973Ra10), I|b{+-}(0)|<13%; and from log| {If{+1}t}|>8.5 for the
162TB6cB |b{+-} transition to the 2- at 39 keV (1973Ra10), I|b{+-}(39)|<0.15%.
162TB cG $Data are from 1982Ge07, unless otherwise noted. Others:
162TB2cG 1970Ch02, 1967Wa05.
162TB cL $Decay scheme is from 1982Ge07 and is similar to that of
162TB2cL 1970Ch02 and 1967Wa05.
162TB cL $The consistency of the scheme is supported by the fact that
162TB2cL the sum of the energies of the radiations is 1580 keV {I170}, which
162TB3cL agrees with the Q value of 1599 {I4}.
162TB cL E$From least-squares fit to |g energies.
162TB cL J$From {+162}Tb Adopted Levels. Rotational-band and Nilsson
162TB2cL configuration assignments are given there.
162TB DG CC$FROM BrIcc v2.3e (17-Jun-2020) 2008Ki07, "Frozen Orbitals" appr.
162GD P 0 0+ 8.4 M 2 1599 4
162GD cP T$From {+162}Gd Adopted Levels and based on values of
162GD2cP 8.2 min {I3} (1970Ch02) and 8.55 min {I28} (1982Ge07)
162GD cP QP$From 2021Wa16
162TB N 0.51 7 1.0 1.0
162TB cN NR$Based on evaluator's assumption that 100% of the decays
162TB2cN depopulate the levels at 341 and 442 keV. From log| {Ift}
162TB#cN arguments, the direct |b{+-} feeding of the ground state should
162TB$cN be |<13%. If I|b{+-}(0) were this large, the normalization factor
162TB%cN would be reduced from 0.51 to 0.44. Normalization to
162TB3cN 100% feeding of the ground state is not useful since I|g(39) has
162TB4cN a large (20%) uncertainty and the E2 mixture in this |g would
162TB5cN have to be determined from the intensity balance at the 39 level
162TB6cN in any case. 1982Ge07 report a normalization factor of 0.61 {I6}
162TB7cN based on a value of 43 {I1} |g's per 100 decays for the 807-keV |g
162TB8cN in the |b{+-} decay of {+162}Tb; but this results in a total |b{+-}
162TB9cN intensity of 118 {I12} per 100 decays of {+162}Gd. [Result reported
162TB0cN by 1982Ge07 is I|g(442|g from {+162}Gd decay)/I|g(807 |g from
162TBAcN {+162}Tb decay)=1.43 {I2}]
162TB PN 3
162TB L 0.0 1- 7.74 M 9
162TB CL T$from {+162}Tb Adopted Levels
162TB L 39.10 9 2-
162TB G 39.0 2 10 2 M1+E2 0.14 +5-7 7.9 18 C
162TB2 G %IG=5.1 7$
162TB cG E$average of 39.1 {I2} (1982Ge07) and 38.8 {I2} (1970Ch02).
162TB CG RI$average of 9 {I2} (1982Ge07) and 14 {I3} (1970Ch02).
162TB CG M,CC$|a value deduced by evaluator (with code BrIccMixing) from
162TB2CG intensity balance at 39 level from current decay scheme
162TB L 341.41 9 (0-,1)
162TB B 4.3 7 6.18 8
162TBS B EAV=443.4 17
162TB G 302.30 15 3.1 5
162TB2 G %IG=1.59 33$
162TB G 341.42 10 5.3 5
162TB2 G %IG=2.7 4$
162TB L 442.11 8 1+
162TB B 95 14 4.70 7
162TBS B EAV=401.9 17
162TB CB E$measured value=1000 {I100} (1970Ch02)
162TB G 403.00 8 85 4 [E1] 0.0080811 C
162TB2 G %IG=44 6$
162TBS G KC=0.00687 10$LC=0.000946 13$MC=0.0002052 29
162TBS G NC=4.72E-5 7$OC=7.15E-6 10$PC=4.44E-7 6
162TB G 442.12 8 100.00 1 [E1] 0.00651 9 C
162TB2 G %IG=51 7$
162TBS G KC=0.00554 8$LC=0.000759 11$MC=0.0001645 23
162TBS G NC=3.78E-5 5$OC=5.75E-6 8$PC=3.60E-7 5