87RB 87KR B- DECAY 1971SH01,1973BLZH,1973GEYV15NDS 201510
87RB H TYP=FUL$AUT=T.D. Johnson and W.D. Kulp(a)$CIT=NDS 129, 1 (2015)$
87RB2 H CUT=27-Jul-2015$
87RB DG CC$ FROM BrIcc v2.3 (9-Dec-2011) 2008Ki07, "Frozen Orbitals" appr.
87RB cL The level scheme is that proposed by 1971Sh01,
87RB2cL with one additional level at 1389 keV from 1973BlZH.
87RB cG |g-ray data for about 30 |g's were measured with good
87RB2cG accuracy by 1971Sh01, 1973BlZH, and 1973GeYV. They are
87RB3cG in good agreement even for very weak transitions.
87RB4cG |g|g-coincidences (Ge(Li)) were measured by 1971Sh01. Shorter
87RB5cG sets of |g data are given by 1967Ho17, 1969Bo02, 1969Ly01,
87RB6cG 1969On01, and 1 |g ray by 1979Bo26.
87RB cL E From least-squares fit to |g-ray energies.
87RB cL J From {+87}Rb Adopted Levels.
87RB cB E |b- energies were measured with |s=50 keV to 100 keV by
87RB2cB 1969Bo02. For other measurements, see 1969On01 and 1969Ly01.
87RB cB IB A measurement in a magnetic spectrometer and detailed
87RB2cB analysis of the |b{+-} spectrum was carried out by 1973Wo01.
87RB3cB The decomposition of this spectrum was done without intensity
87RB4cB constraints from the decay scheme and with constraints based
87RB5cB on several previous decay schemes. Their results which differ
87RB6cB significantly from those from the intensity balances are noted.
87RB cB IB The value for the decay to the ground state, 30.5, is from
87RB2cB 1973Wo01 and those for the excited levels are from the |g-ray
87RB3cB intensity balances. Where they differ significantly, the values
87RB4cB recommended by 1973Wo01 are given in comments. The analysis of
87RB5cB 1973Wo01 does not include the level at 1389 and it does not give
87RB6cB values for branches of less than 0.4%.
87RB cB IB The |b strength function has been reported by 1973Jo02 in
87RB2cB graphical form. These data support the absence of any strong
87RB3cB |b branches to levels between 900 and 1500 keV.
87RB cG E,RI Weighted average of values from 1971Sh01, 1973BlZH, and
87RB2cG 1973GeYV, unless noted otherwise.
87RB cG E(A) Not observed by 1973GeYV
87RB cG E(B) Not observed by 1971Sh01
87RB cG E(D) Not observed by 1973BlZH
87RB N 0.496 24 1.0 1.0
87RB cN NR calculated to give 100% feeding of ground state with
87RB2cN direct |b- feeding of 30.5% {I22} (1973Wo01).
87RB PN 3
87KR P 0.0 5/2+ 76.3 M 5 3888.27 25
87RB G 129.4 3 0.09 2 D
87RB G 510.78 14 0.16 4 A
87RB G 901.5 3 0.053 9 D
87RB G 1063.2 4 0.054 12 A
87RB G 1842.61 23 0.28 2 B
87RB G 3704.6 10 0.03 1
87RB3 G FLAG=BD
87RB L 0.0 3/2- 4.97E10 Y 3
87RB B 30.5 22 7.81 4
87RBS B EAV=1694.44
87RB L 402.588 12 5/2-
87RB B 41 3 7.47 4
87RBS B EAV=1501.66
87RB cB IB other: 42.9 (1973Wo01)
87RB G 402.588 12 100 4M1+E2 -0.24 12 0.0041118 C
87RB CG E$ From 1979Bo26. Others: 402.7 {I3}, (1971Sh01), 402.60 {I10},
87RB2CG and 402.578 {I20}, (1973GeYV).
87RB cG MR from {+87}Rb Adopted Gammas.
87RB L 845.44 4(1/2)-
87RB B 7.3 4 9.371 24 1U
87RBS B EAV=1293.80
87RB G 845.44 4 14.8 4 C
87RB L 1349.36 10
87RB G 946.69 13 0.26 1 C
87RB L 1389.88 12(3/2)-
87RB B 0.119 8 9.39 3
87RBS B EAV=1033.36 13
87RB G 1389.87 12 0.24 1
87RB L 1578.05 61/2-,3/2-
87RB B 0.12 5 9.24 18
87RBS B EAV=945.25 12
87RB G 1175.41 7 2.23 8 C
87RB G 1578.03 14 0.26 2
87RB L 1740.58 5(3/2,5/2)-
87RB B 0.62 9 8.40 7
87RBS B EAV=869.60 12
87RB G 1338.00 7 1.28 7 C
87RB G 1740.51 7 4.11 9 C
87RB L 2378.38 18
87RB B 0.06012 8.79 9
87RBS B EAV=578.33 14
87RB G 1531.2 4 0.72 11 DC ?
87RB3 G FL=845.44
87RB cG E from 1971Sh01, but is a poor fit and not resolved by
87RB2cG 1973GeYV from the double-escape peak of the 2554|g . Not
87RB3cG included in the least-squares fit which gives E|g=1532.96
87RB4cG {I12} for this transition.
87RB G 2378.5 3 0.19 1
87RB L 2414.44 6(3/2-)
87RB B 5.5 3 6.788 24
87RBS B EAV=562.23 12
87RB cB IB other: 5.07 (1973Wo01)
87RB G 673.83 8 3.81 10 C
87RB G 836.38 5 1.56 4 C
87RB G 2011.88 10 5.81 23 C
87RB L 2554.82 73/2+,5/2+
87RB B 9.4 7 6.38 4
87RBS B EAV=500.05 12
87RB cB IB other: 8.09 (1973Wo01)
87RB G 814.25 6 0.33 2
87RB G 976.14 12 0.113 8
87RB G 2554.75 25 18.6 9
87RB L 2811.25 143/2+,5/2+
87RB B 0.60 4 7.22 3
87RBS B EAV=388.95 13
87RB cB IB other: 0.42 (1973Wo01)
87RB G 1461.3 7 0.10 1 D
87RB G 2408.46 15 0.46 4
87RB G 2811.36 20 0.65 3
87RB L 2960.62 7(3/2,5/2)+
87RB B 4.4 4 6.11 4
87RBS B EAV=326.12 11
87RB G 582.32 21 0.07 2 A
87RB G 1382.55 7 0.58 2 C
87RB G 1611.18 14 0.23 3 C
87RB G 2558.08 19 8.0 5 C
87RB G 2961.2 8 0.14 4 A
87RB L 3055.15 243/2,5/2,7/2(-)
87RB B 0.108 9 7.55 4
87RBS B EAV=287.26 15
87RB G 2652.48 38 0.047 8
87RB G 3055.1 3 0.162 13
87RB L 3308.49 123/2+,5/2+
87RB B 0.49 4 6.33 4
87RBS B EAV=187.49 11
87RB cB IB other: 0.91 (1973Wo01); this value may include some
87RB2cB scattered electrons or it may indicate additional |g rays
87RB3cB from this level.
87RB G 894.02 13 0.092 7
87RB cG E uncertainty in energy of this weak |g seems to be
87RB2cG underestimated by 1973BlZH and was increased by the evaluator
87RB3cG from 0.1 to 0.2 keV.
87RB G 3308.5 2 0.90 5