186RE    186RE IT DECAY (2.0E+5 Y)     1972SE06                  22NDS    202207
186RE  H TYP=FUL$AUT=J. C. Batchelder and A. M. Hurst, M. S. Basunia$
186RE2 H CIT=NDS 183, 1 (2022)$CUT=1-Mar-2022$
186RE c  1972Se06: sources from {+185}Re(n,|g), chemically purified and aged 0,
186RE2c  4 or 20 years; 4-year old source thicknesses 0.25 and |?0.025
186RE3c  mg/cm{+2}; three Ge(Li) detector systems (8 cc, 0.5 cc with FWHM=330
186RE4c  eV at 14 keV, 20 cc detectors), windowless Si(Li) detector with
186RE5c  FWHM|?1 keV at 130 keV; measured T{-1/2}, E|g, I|g, E(ce), I(ce),
186RE6c  x-ray intensities for isomer, and |g and x-ray intensities for
186RE7c  {+186}Re (3.7185 d) decay.
186RE c  The decay scheme is that of 1972Se06. A possible, unobserved
186RE2c  E=1.93 {I50} E5 transition connecting the isomer to the known (3)- 146
186RE3c  keV level, postulated in 1988Fi06 to explain a small excess in K x-ray
186RE4c  intensity, has not been adopted; 1972Se06 concluded that the observed
186RE5c  I(K| x ray) could be explained adequately on the basis of conversion
186RE6c  of the 99|g alone.
186RE cG E         From adopted gammas, unless noted otherwise.
186RE cG RI        From 1972Se06, relative to I(137|g, {+186}Os)=10.0 {I1},
186RE2cG except as noted.
186RE cG M,MR      From adopted gammas, except as noted.
186RE cG M(B)      L2/L3|?0.6, L1<6 levels in {+186}W is
186RE5cN negative. Also, the observed ratio of I(|g+ce) deexciting the 2+
186RE6cN levels in the |e and |b{+-} decay daughters is the same for both the
186RE7cN g.s. decay and the isomer decay.
186RE PN                                                                     3
186RE  L 0.0         1-                  3.7185 D 5
186RE  L 59.010     3 2-
186RE  G 59.009     4 20.1    2 M1+E2     0.042   10   4.21    7
186RES G  LC=3.25 5$MC=0.744 12
186RES G  NC=0.1804 30$OC=0.0302 5$PC=0.002171 30
186RE cG E         58.98 from 1972Se06.
186RE cG RI        weighted average of 20.2 {I1} and 19.8 {I2} (1972Se06).
186RE  L 99.361     3 3-                 25.5 NS 25
186RE  G 40.350    3  5.68   4 M1+E2     0.145   6     17.7    5
186RES G  LC=13.6 4$MC=3.21 9
186RES G  NC=0.773 22$OC=0.1233 32$PC=0.00653 9
186RE cG E         40.29 from 1972Se06.
186RE cG MR        adopted value; weighted average of 0.146 {I6} from intensity
186RE2cG balance through 59-keV level (1972Se06) and 0.124 {I+33-45} in (n,|g)
186RE3cG E=thermal (1969La11).
186RE  G 99.362     4 1.21    5 E2                     4.23    6
186RES G  KC=0.848 12$LC=2.55 4$MC=0.650 9
186RES G  NC=0.1543 22$OC=0.02198 31$PC=7.86E-5 11
186RE cG E         99.33 from 1972Se06.
186RE  L 148.2      5  (8+)             2.0E+5 Y                             M1
186RE2 L %IT=100
186RE cL E         Other: 149 keV {I7} deduced from E|g (1972Se06).
186RE cL J         Deduced configuration K|p=8+, |p5/2[402]~#|n11/2[615]
186RE2cL (1972Se06).
186RE cL T         From mass spectrometry and average absolute photon intensity
186RE2cL measurements in 1972Se06; uncertainty not stated. Secondary datum:
186RE3cL 1.7|*10{+5} y from consistency check that measured equilibrium |b{+-}
186RE4cL activity using a proportional counter, corrected for |b{+-}
186RE5cL self-absorption and photon background (1972Se06).
186RE  G 48.84     50            (E5)                  4.8E6   4   100      B
186REL G FL=99.361
186REF G FLAG=D
186RES G  L/T=0.51 4$M/T=0.38 4
186RES G  N/T=0.098 11$O/T=0.0102 12$P/T=7.7E-6 8
186RES G  LC=2.48E6 19$MC=1.82E6 16
186RES G  NC=4.7E5 4$OC=4.9E4 4$PC=36.8 26