161ER 161ER IT DECAY (7.5 US) 1970BO02 11NDS 201111
161ER H TYP=FUL$AUT=C. W. Reich$CIT=NDS 112,2497 (2011)$CUT=1-Jun-2011$
161ER D DATA SET UPDATED (AUGUST, 2009) BY CW REICH TO INCORPORATE CC
161ER2D VALUES FROM BRICC, RECOMPUTE SOME OF THE RI VALUES, AND MODIFY
161ER3D SOME COMMENTS
161ER c All data are from 1970Bo02, unless otherwise noted. {+161}Er isomer
161ER2c produced by {+161}Dy({+3}He,3n) on enriched (80.7%) target. |g's
161ER3c measured with Ge detectors and ce's with magnetic spectrometer.
161ER4c |gce coincidences measured.
161ER cG M,MR Multipolarity assignments and |d values are from the {+161}Er
161ER2cG Adopted |g's and are consistent with those of 1970Bo02.
161ER cG CC Values were computed for the more precise |g energies given
161ER2cG in the {+161}Er Adopted |g's.
161ER cG E(MNPQ) Although not observed in the IT decay, this |g is
161ER2cG observed to depopulate this level in the |e decay of {+161}Tm.
161ER cG RI(M) Value computed by evaluator to give intensity balance
161ER2cG at 267 level [i.e., I(|g+ce)(78)=I(|g+ce)(131)+I(|g+ce)(29)].
161ER cG RI(N) Value computed from I|g's from {+161}Tm |e decay and scaled
161ER2cG to give intensity balance at 297 level [i.e., I(|g+ce)(29)+I(|g+ce)(46)
161ER3cG + I(|g+ce)(79)+I(|g+ce)(107)=I(|g+ce)(100)].
161ER cG RI(P) Value computed from I|g(207)/I|g(147) from {+161}Tm |e decay.
161ER2cG The in-beam study 1970Hj02 gives a value that is larger by a factor
161ER3cG of 1.8.
161ER cG RI(Q) Value computed to give intensity balance at 189 level.
161ER cG RI(R) Value computed to give intensity balance at 59 level.
161ER cG RI(T) Value computed to give intensity balance at 217 level.
161ER cL J J|p and band assignments are those of 1970Bo02, except as
161ER2cL noted. They agree with those in the {+161}Er Adopted Levels.
161ER DL Levels are 3/2(0), 5/2(59), 7/2(144), and 9/2(250).
161ER DL Levels are 13/2(267) and 11/2(297), but not assigned here.
161ER DL Level is 11/2(397).
161ER CL BAND(A) 3/2[521] band
161ER CL BAND(E) Bandhead of 11/2[505]
161ER P 397 11/2- 7.5 US 7
161ER N 0.93 9 1.0
161ER cN NR calculated by evaluator to give 100% decays from the
161ER2cN 397-keV isomer. The calculated ground-state feeding is then 95% {I10}.
161ER PN 3
161ER L 0 3/2- 3.21 H 3 A
161ER cL T from {+161}Er Adopted Levels.
161ER L 59 5/2- A
161ER G 59 7.1 M1+E2 0.14 12.82 R
161ERS G KC=10.37 15$LC=1.91 3$MC=0.431 6$NC+=0.1144 17
161ERS G NC=0.0998 14$OC=0.01390 20$PC=0.000654 10
161ER L 144 7/2- A
161ER G 85 16 3 M1+E2 0.23 4.69
161ERS G KC=3.77 6$LC=0.714 10$MC=0.1618 23$NC+=0.0428 6
161ERS G NC=0.0375 6$OC=0.00517 8$PC=0.000232 4
161ER G 144 2.5 13E2 0.779
161ERS G KC=0.416 6$LC=0.278 4$MC=0.0670 10$NC+=0.01706 25
161ERS G NC=0.01522 22$OC=0.00183 3$PC=1.82E-5 3
161ER L 189 9/2+ ?
161ER cL E level proposed (1970Bo02) to allow decay of 267- and 297-keV
161ER2cL levels; existence of level is established in |e decay of {+161}Tm.
161ER cL J from Adopted Levels.
161ER G 45.54 23 E1 0.495 Q S
161ERS G LC=0.387 6$MC=0.0864 13$NC+=0.0220 4
161ERS G NC=0.0195 3$OC=0.00243 4$PC=8.11E-5 12
161ER cG M |a(L1)(exp)/|a(L2)(exp)/|a(L3)(exp)=
161ER2cG 100 {I10}/47 {I5}/57 {I6} (1980Ab18); other: 1975Ad08.
161ER cG MR <0.05 (1980Ab18).
161ER L 217 7/2+
161ER G 27.9 0.12 M1+E2 0.10 28.0 T S
161ERS G LC=21.7 4$MC=4.96 8$NC+=1.301 19
161ERS G NC=1.142 17$OC=0.1536 23$PC=0.00612 9
161ER G 73.4 0.045 E1 0.732 T S
161ERS G KC=0.601 9$LC=0.1020 15$MC=0.0226 4$NC+=0.00585 9
161ERS G NC=0.00515 8$OC=0.000674 10$PC=2.60E-5 4
161ER G 157.8 0.52 E1 0.0969 T S
161ERS G KC=0.0812 12$LC=0.01228 18$MC=0.00271 4$NC+=0.000714 10
161ERS G NC=0.000624 9$OC=8.56E-5 12$PC=3.90E-6 6
161ER L 250 9/2- A
161ER G 106 14 3 M1+E2 0.23 2.41
161ERS G KC=1.97 3$LC=0.344 5$MC=0.0774 11$NC+=0.0206 3
161ERS G NC=0.0180 3$OC=0.00252 4$PC=0.0001207 17
161ER G 191 4 LEE2 0.298
161ERS G KC=0.187 3$LC=0.0847 12$MC=0.0202 3$NC+=0.00518 8
161ERS G NC=0.00460 7$OC=0.000565 8$PC=8.72E-6 13
161ER L 267 13/2+
161ER cL E level proposed (1970Bo02) to allow decay of 397-keV level by
161ER2cL an observed |g; existence of level is established in |e decay of
161ER3cL {+161}Tm and in-beam studies.
161ER cL J from Adopted Levels.
161ER G 78.07 2.8 E2 7.69 M S
161ERS G KC=1.758 25$LC=4.54 7$MC=1.107 16$NC+=0.279 4
161ERS G NC=0.250 4$OC=0.0291 5$PC=7.80E-5 11
161ER L 297 11/2+
161ER cL E level proposed (1970Bo02) to allow decay of 397-keV level by
161ER2cL an observed |g; existence of level is established in |e decay of
161ER3cL {+161}Tm.
161ER cL J from Adopted Levels.
161ER G 29.26 0.27 M1+E2 0.07 20.2 N S
161ERS G LC=15.72 23$MC=3.54 5$NC+=0.939 14
161ERS G NC=0.820 12$OC=0.1140 17$PC=0.00535 8
161ER G 46.86 3.9 E1 0.457 N S
161ERS G LC=0.357 6$MC=0.0798 12$NC+=0.0203 3
161ERS G NC=0.0180 3$OC=0.00225 4$PC=7.59E-5 11
161ER G 79.35 0.49 E2 7.21 N S
161ERS G KC=1.714 24$LC=4.21 6$MC=1.025 15$NC+=0.259 4
161ERS G NC=0.232 4$OC=0.0270 4$PC=7.54E-5 11
161ER G 107.22 2.1 M1+E2 1.2 2.29 N S
161ERS G KC=1.338 19$LC=0.733 11$MC=0.1754 25$NC+=0.0448 7
161ERS G NC=0.0399 6$OC=0.00487 7$PC=7.18E-5 10
161ER L 397 11/2- 7.5 US 7 EM
161ER cL T from 1970Bo02 from |g(t) and ce(t).
161ER G 100 16 3 E1 0.327
161ERS G KC=0.272 4$LC=0.0434 6$MC=0.00963 14$NC+=0.00251 4
161ERS G NC=0.00220 3$OC=0.000294 5$PC=1.224E-5 18
161ER G 131 16 2 E1 0.1657
161ERS G KC=0.1383 20$LC=0.0214 3$MC=0.00473 7$NC+=0.001239 18
161ERS G NC=0.001085 16$OC=0.0001473 21$PC=6.47E-6 9
161ER G 147 24 4 M1+E2 0.23 0.945
161ERS G KC=0.783 11$LC=0.1267 18$MC=0.0284 4$NC+=0.00758 11
161ERS G NC=0.00659 10$OC=0.000936 14$PC=4.78E-5 7
161ER G 207.12 12 3 E1 0.0475 P
161ERS G KC=0.0399 6$LC=0.00590 9$MC=0.001304 19$NC+=0.000344 5
161ERS G NC=0.000301 5$OC=4.17E-5 6$PC=1.98E-6 3
161ER G 253 7 2 E2 0.1179
161ERS G KC=0.0825 12$LC=0.0273 4$MC=0.00644 9$NC+=0.001660 24
161ERS G NC=0.001470 21$OC=0.000186 3$PC=4.10E-6 6