ADOPTED LEVELS, GAMMAS for 89Sr
Author: Balraj Singh | Citation: Nucl. Data Sheets 114, 1 (2013) | Cutoff date: 20-Oct-2012
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=1500.4 keV 24 | S(n)= 6358.72 keV 9 | S(p)= 10888.7 keV 11 | Q(α)= -7153.3 keV 23 | ||
Reference: 2012WA38 |
References: | |||
A | 89Rb β- decay (15.32 M) | B | 82Se(11B,p3nγ) |
C | 86Kr(α,nγ) | D | 87Sr(t,p) |
E | 88Sr(n,γ) E=TH | F | 88Sr(n,γ) E=23.6 KEV |
G | 88Sr(n,n),(n,γ):Resonances | H | 88Sr(d,p),(pol d,p) |
I | 88Sr(d,pγ) | J | 88Sr(13C,12C) |
K | 89Y(μ-,γ) | L | 89Y(t,3He) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCDEF HIJKL | 5/2+ | 50.563 d 25 % β- = 100 | |||||
1032.00 4 | A CDEF HIJK | 1/2+ | > 1 ps | 1031.95 5 | 100 | [E2] | 0.0 | 5/2+ |
1473.35 6 | A CDE HI | (7/2)+ | 0.26 ps 10 | 1473.30 7 | 100 | M1+E2 | 0.0 | 5/2+ |
1940.19 6 | A CDEF HI | 5/2+ | 0.19 ps 5 | 466.62 15 1940.15 6 | 21 5 100 7 | M1+E2 M1+E2 | 1473.35 0.0 | (7/2)+ 5/2+ |
2007.59 5 | A CDEF HI | 3/2+ | 0.10 ps 4 | 975.38 19 2007.56 8 | 2.3 5 100 7 | M1+E2 | 1032.00 0.0 | 1/2+ 5/2+ |
2057.4 5 | A | (1/2+,3/2,5/2+) | 1025.3 5 2058.0 11 | 98 35 100 38 | 1032.00 0.0 | 1/2+ 5/2+ | ||
2061.5 5 | CD H | (9/2+) | 0.21 ps 6 | 588.1 2061.6 | 9.5 100 | (M1+E2) [E2] | 1473.35 0.0 | (7/2)+ 5/2+ |
2079.0 5 | BC H | 11/2- | 0.33 ns 7 | 2079.4 1 | 100 | [E3] | 0.0 | 5/2+ |
2280.19 4 | A E H | (1/2)- | 272.42 7 1248.18 5 2280.00 15 | 3.34 16 100 5 0.42 4 | 2007.59 1032.00 0.0 | 3/2+ 1/2+ 5/2+ | ||
2451.64 6 | A DEF HI | 3/2+ | 512 1419.56 8 2451.65 11 | 76 7 100 12 61 6 | (M1+E2) (M1(+E2)) | 1940.19 1032.00 0.0 | 5/2+ 1/2+ 5/2+ | |
2570.10 4 | A E H | (3/2)- | 118.3 5 289.76 10 562.08 21 1538.08 6 2570.16 7 | 0.12 6 5.5 3 0.47 6 26.3 18 100 5 | 2451.64 2280.19 2007.59 1032.00 0.0 | 3/2+ (1/2)- 3/2+ 1/2+ 5/2+ | ||
2675 4 | HI | 7/2+ | 735 1202 2675 | 12 3 17 4 100 6 | (M1+E2) (M1+E2) | 1940.19 1473.35 0.0 | 5/2+ (7/2)+ 5/2+ | |
2707.12 9 | A D H | (5/2-) | 699.6 4 766.76 12 1234.0 4 2707.26 15 | 1.1 3 8.0 9 1.4 8 100 6 | 2007.59 1940.19 1473.35 0.0 | 3/2+ 5/2+ (7/2)+ 5/2+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2805 3 | H | (7/2-,5/2+) | ||||||
2916 5 | H | 3/2+,5/2+ | ||||||
2930.5 5 | C | 9/2(+) | 0.15 ps 5 | 852 1457.0 | 45 3 100 4 | [E1] (M1+E2) | 2079.0 1473.35 | 11/2- (7/2)+ |
2961.9 5 | CD H | 9/2+ | 0.7 ps 3 | 1488.5 | 100 | (M1(+E2)) | 1473.35 | (7/2)+ |
3073 9 | H | (3/2)+ | ||||||
3128 5 | D HI | 3/2+ | 3128 | 100 | 0.0 | 5/2+ | ||
3200 7 | H | |||||||
3227.87 5 | A E | (3/2)- | 657.77 6 776.19 25 947.63 7 1220.35 9 2196.02 20 3227.84 13 | 75 4 0.52 13 69 4 1.65 13 100 7 0.57 4 | 2570.10 2451.64 2280.19 2007.59 1032.00 0.0 | (3/2)- 3/2+ (1/2)- 3/2+ 1/2+ 5/2+ | ||
3249 9 | HI | 5/2+ | 1776 3249 | 33 13 100 13 | 1473.35 0.0 | (7/2)+ 5/2+ | ||
3303.10 24 | A | (3/2,5/2,7/2+) | 596.0 3 3303.5 8 | 100 25 25 13 | 2707.12 0.0 | (5/2-) 5/2+ | ||
3388.1 7 | BC | 15/2- | > 7 ps | 1309.3 1 | 100 | E2 | 2079.0 | 11/2- |
3390? | I | 3390 | 100 | 0.0 | 5/2+ | |||
3404.1 7 | C H | 11/2- | 1325.1 | 100 | 2079.0 | 11/2- | ||
3421 10 | H | (11/2-) | ||||||
3433.06 11 | DE H | (1/2+,3/2) | 1152.75 16 1425.39 18 3433.14 18 | 69 19 60 17 100 13 | 2280.19 2007.59 0.0 | (1/2)- 3/2+ 5/2+ | ||
3468 1 | H | |||||||
3508.64 7 | A E H | (3/2)+ | 205.7 4 801.1 5 1057.2 4 1228.46 13 1501.00 15 2035.37 20 3508.65 19 | 1.0 5 1.5 10 2.0 10 10.6 15 17.2 15 4.5 23 100 6 | 3303.10 2707.12 2451.64 2280.19 2007.59 1473.35 0.0 | (3/2,5/2,7/2+) (5/2-) 3/2+ (1/2)- 3/2+ (7/2)+ 5/2+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3524.3 7 | CD | 13/2- | 0.39 ps 12 | 1445.3 | 100 | M1+E2 | 2079.0 | 11/2- |
3541 8 | D H | |||||||
3599.0 7 | C H | (11/2+) | 0.43 ps 12 | 1520.0 | 100 | (E1) | 2079.0 | 11/2- |
3634 5 | D H | 5/2-,7/2- | ||||||
3651.71 19 | A | 1/2(+),3/2,5/2 | 1081.4 3 1644.2 3 3651.8 4 | 67 17 67 17 100 33 | 2570.10 2007.59 0.0 | (3/2)- 3/2+ 5/2+ | ||
3672.1 7 | BC | (15/2-) | 2.4 ps +27-8 | 283.9 3 1593.2 3 | 100 6 75 6 | D [E2] | 3388.1 2079.0 | 15/2- 11/2- |
3677 7 | D H | + | ||||||
3699.82 10 | E H | 5/2+ | 1419.56? 2667.84 13 3699.3 4 | <63 100 13 27 6 | 2280.19 1032.00 0.0 | (1/2)- 1/2+ 5/2+ | ||
3728.0 10 | C | 323.9 | 100 | 3404.1 | 11/2- | |||
3745 7 | H | |||||||
3750.7 10 | BC | 17/2- | 362.4 1 | 100 | M1(+E2) | 3388.1 | 15/2- | |
3755 7 | HI | 1/2+ | 1747 3755 | 61 8 100 8 | 2007.59 0.0 | 3/2+ 5/2+ | ||
3763 7 | D H | + | ||||||
3829 6 | H | 3/2+,5/2+ | ||||||
3845.7 4 | A D | 5/2+ | 1138.5 5 2372.8 9 3845.4 6 | 40 20 40 20 100 20 | 2707.12 1473.35 0.0 | (5/2-) (7/2)+ 5/2+ | ||
3881 7 | H | |||||||
3910 7 | D H | (+) | ||||||
3937 7 | D H | (+) | ||||||
3987.8 4 | A H | 1/2(+),3/2,5/2(+) | 1979.7 5 2955.0 12 3989.1 8 | 100 25 25 13 75 25 | 2007.59 1032.00 0.0 | 3/2+ 1/2+ 5/2+ | ||
4017 5 | H | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
4034 5 | H | |||||||
4050.0 3 | A H | 1/2+ | 822.0 4 1770.2 8 2109.7 5 | 100 40 40 20 60 20 | 3227.87 2280.19 1940.19 | (3/2)- (1/2)- 5/2+ | ||
4055 4 | H | |||||||
4065 6 | H | (1/2+,5/2-,7/2-) | ||||||
4072 10 | D | (+) | ||||||
4081 4 | H | |||||||
4093.8 6 | A | 1/2(+),3/2,5/2 | 4093.7 6 | 100 | 0.0 | 5/2+ | ||
4120 5 | H | |||||||
4168 7 | H | (3/2+,5/2+) | ||||||
4180 7 | D H | |||||||
4199 7 | D H | |||||||
4207 7 | H | |||||||
4208.8 10 | BC | (19/2)- | 458.0 1 536.5 3 820.4 1 | 100.0 18 5.1 7 94.2 15 | M1+E2 (E2) | 3750.7 3672.1 3388.1 | 17/2- (15/2-) 15/2- | |
4222 7 | H | |||||||
4225.53 9 | E H | (1/2+,3/2) | 2285.2 3 4225.55 16 | 100 20 100 8 | 1940.19 0.0 | 5/2+ 5/2+ | ||
4233 7 | H | |||||||
4247 7 | H | |||||||
4254 7 | D H | |||||||
4271 7 | D H | |||||||
4328.80 9 | E H | (3/2)+ | 2321.29 19 3296.62 24 4328.66 15 | 82 15 44 7 100 7 | 2007.59 1032.00 0.0 | 3/2+ 1/2+ 5/2+ | ||
4335.58 7 | E | (1/2+,3/2) | 2055.4 3 3303.52 10 4335.46 13 | 17 4 100 5 40 3 | 2280.19 1032.00 0.0 | (1/2)- 1/2+ 5/2+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
4359 10 | H | |||||||
4382 7 | H | |||||||
4406 7 | H | |||||||
4417 7 | H | |||||||
4435 7 | H | (5/2-,7/2-) | ||||||
4445.16 9 | DE | (1/2+,3/2) | 2165.3 3 2437.74 24 3413.1 5 4444.0 10 | 100 23 85 18 28 10 15 8 | 2280.19 2007.59 1032.00 0.0 | (1/2)- 3/2+ 1/2+ 5/2+ | ||
4465 8 | H | |||||||
4472 8 | H | 1/2+ | ||||||
4518 10 | D H | 7/2+,9/2+ | ||||||
4560 10 | H | (3/2+,5/2+) | ||||||
4594 10 | H | 3/2+,5/2+ | ||||||
4614 10 | H | 1/2+ | ||||||
4626 10 | H | |||||||
4659.85 8 | DE H | 1/2+ | 2379.43 12 2652.58 16 3627.73 18 | 100 12 53 8 51 5 | 2280.19 2007.59 1032.00 | (1/2)- 3/2+ 1/2+ | ||
4679 7 | H | (1/2-,3/2,5/2+) | ||||||
4742 7 | H | (1/2+) | ||||||
4759 10 | D H | |||||||
4790 10 | D H | |||||||
4818 10 | D H | |||||||
4865 10 | D H | (7/2+,9/2+) | ||||||
4894 10 | H | |||||||
4928 10 | H | (1/2-,3/2,5/2+) | ||||||
4955.54 9 | E | (3/2+) | 2948.05 11 3482.0 4 3923.30 17 | 100 11 14 4 29 3 | 2007.59 1473.35 1032.00 | 3/2+ (7/2)+ 1/2+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5005 10 | H | |||||||
5036 10 | D H | 1/2+ | ||||||
5067 10 | D H | 3/2+,5/2+ | ||||||
5081 10 | D H | 3/2+,5/2+ | ||||||
5107 10 | DE H | |||||||
5115.14 19 | B | (21/2) | 906.0 1 | 100 | D | 4208.8 | (19/2)- | |
5130 10 | H | |||||||
5148 10 | H | |||||||
5169 10 | H | (3/2+,5/2+) | ||||||
5208 10 | D H | |||||||
5242 10 | H | |||||||
5259 10 | H | |||||||
5280 10 | H | 1/2+ | ||||||
5298 10 | D H | 1/2+ | ||||||
5316 10 | D H | |||||||
5360 10 | HI | 1/2+ | 4328? 5360? | | 1032.00 0.0 | 1/2+ 5/2+ | ||
5399 10 | D H | |||||||
5418 10 | D H | (1/2+) | ||||||
5442 10 | H | |||||||
5456 10 | H | |||||||
5480 10 | D H | |||||||
5496 10 | D H | |||||||
5529 10 | D H | |||||||
5540 10 | D H | |||||||
5573 10 | H | |||||||
5583 10 | H | |||||||
5611 10 | D H | |||||||
5628 10 | D H | |||||||
5657 10 | D H | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5666 10 | D H | |||||||
5694 10 | H | |||||||
5725.9 4 | B | (19/2,21/2,23/2-) | 1516.7 3 | 100 | 4208.8 | (19/2)- | ||
5753 10 | D H | |||||||
5773 10 | D H | |||||||
5825 10 | H | |||||||
5858 10 | H | |||||||
5925 10 | D | |||||||
5979.1 4 | B | (23/2) | 253.3 5 864.0 3 | 9.1 18 100 9 | D | 5725.9 5115.14 | (19/2,21/2,23/2-) (21/2) | |
5995 10 | D | |||||||
6115 10 | D | |||||||
6188 10 | D | |||||||
6649.9 4 | B | (25/2) | 1534.7 5 | 100 | (Q) | 5115.14 | (21/2) | |
6857.5 5 | B | (25/2) | 878.3 3 | 100 | D | 5979.1 | (23/2) | |
7025.7 4 | B | (25/2) | 1910.5 3 | 100 | 5115.14 | (21/2) | ||
7421.6 4 | B | (27/2) | 395.9 3 771.7 3 | 88 12 100 12 | (D) | 7025.7 6649.9 | (25/2) (25/2) | |
7984.4 7 ? | B | 1334.5 5 | 100 | 6649.9 | (25/2) |
E(level): From least-squares fit to Eγ data for levels populated in γ-ray studies and, generally, from (d,p) for levels populated in transfer reaction studies only. In addition 439 neutron resonances give levels in the range from 6370.99 to 7296.26 keV, mostly with spins of 1/2 and 3/2 (from s-, p-, d- wave resonances). These levels are not listed here. See 88Sr(n,n),(n,γ):resonances dataset for details
T1/2(level): From ΔS(a) in (α,nγ) (1981Wa10) for levels above 1032
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Additional Data |
1032.00 | 1/2+ | > 1 ps | 1031.95 5 | [E2] | B(E2)(W.u.)<20 | |
1473.35 | (7/2)+ | 0.26 ps 10 | 1473.30 7 | M1+E2 | +0.75 7 | B(E2)(W.u.)=4.8 20, B(M1)(W.u.)=0.017 7 |
1940.19 | 5/2+ | 0.19 ps 5 | 466.62 15 | M1+E2 | +0.18 8 | B(E2)(W.u.)=31 +32-21, B(M1)(W.u.)=0.19 7 |
5/2+ | 0.19 ps 5 | 1940.15 6 | M1+E2 | -0.45 17 | B(E2)(W.u.)=0.6 5, B(M1)(W.u.)=0.011 4 | |
2007.59 | 3/2+ | 0.10 ps 4 | 2007.56 8 | M1+E2 | -0.8 +5-8 | B(E2)(W.u.)=2.8 25, B(M1)(W.u.)=0.016 11 |
2061.5 | (9/2+) | 0.21 ps 6 | 588.1 | (M1+E2) | +0.01 3 | B(M1)(W.u.)=0.045 13 |
(9/2+) | 0.21 ps 6 | 2061.6 | [E2] | B(E2)(W.u.)=2.8 8 | ||
2079.0 | 11/2- | 0.33 ns 7 | 2079.4 1 | [E3] | B(E3)(W.u.)=47 10 | |
2451.64 | 3/2+ | 1419.56 8 | (M1+E2) | -0.6 4 | ||
3/2+ | 2451.65 11 | (M1(+E2)) | +0.18 LT | |||
2675 | 7/2+ | 1202 | (M1+E2) | +2.5 +10-6 | ||
7/2+ | 2675 | (M1+E2) | -7 2 | |||
2930.5 | 9/2(+) | 0.15 ps 5 | 852 | [E1] | B(E1)(W.u.)=0.0011 4 | |
9/2(+) | 0.15 ps 5 | 1457.0 | (M1+E2) | -0.24 6 | B(E2)(W.u.)=0.9 6, B(M1)(W.u.)=0.031 11 | |
3388.1 | 15/2- | > 7 ps | 1309.3 1 | E2 | B(E2)(W.u.)<0.89 | |
3524.3 | 13/2- | 0.39 ps 12 | 1445.3 | M1+E2 | +0.67 15 | B(E2)(W.u.)=3.0 14, B(M1)(W.u.)=0.013 5 |
3599.0 | (11/2+) | 0.43 ps 12 | 1520.0 | (E1) | B(E1)(W.u.)=0.00022 7 | |
3672.1 | (15/2-) | 2.4 ps +27-8 | 1593.2 3 | [E2] | B(E2)(W.u.)=0.4 2 | |
3750.7 | 17/2- | 362.4 1 | M1(+E2) | +0.01 3 | ||
4208.8 | (19/2)- | 458.0 1 | M1+E2 | +0.41 5 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 5/2+ | 50.563 d 25 % β- = 100 | μ=-1.1481 8 (1987An02,1989Ra17,2011StZZ), Q=-0.271 9 (2002Ma09,1987An02,1989Ra17,2011StZZ) Δ<r2>(88Sr-89Sr)=-0.124 fm2 5 (1990Bu12,1996Li25,1992Ne09,1992Li24). Others: -0.147 fm2 8 (1985Bu20), -0.10 4 or -0.21 10 (1987An02). |
1473.35 | (7/2)+ | 0.26 ps 10 | XREF: H(1460). |
2675 | 7/2+ | XREF: I(2670). E(level): From (d,p), (pol d,p). | |
2707.12 | (5/2-) | XREF: H(2696). | |
2961.9 | 9/2+ | 0.7 ps 3 | XREF: d(2974). |
3128 | 3/2+ | XREF: d(3116)I(3130). E(level): From (d,p), (pol d,p). | |
3249 | 5/2+ | XREF: I(3250). E(level): From (d,p), (pol d,p). | |
3390 | E(level): From (d,p), (pol d,p). | ||
3404.1 | 11/2- | XREF: H(3390). | |
3421 | (11/2-) | L=5 and Ay(θ) in (d,p). | |
3433.06 | (1/2+,3/2) | XREF: d(3448). | |
3508.64 | (3/2)+ | XREF: H(3497). | |
3541 | XREF: d(3566). | ||
3699.82 | 5/2+ | XREF: H(3687). | |
3755 | 1/2+ | E(level): From (d,p), (pol d,p). | |
3845.7 | 5/2+ | XREF: d(3858). | |
4328.80 | (3/2)+ | XREF: H(4315). | |
4518 | 7/2+,9/2+ | XREF: d(4539). | |
5360 | 1/2+ | E(level): From (d,p), (pol d,p). |
E(level) | E(gamma) | Comments |
2007.59 | 2007.56 | M(γ): From (d,pγ) |
2280.19 | 272.42 | E(γ): γ reported in β- decay only | 2280.00 | I(γ): from β- decay. Other: 5.5 28 in (n,γ) |
2451.64 | 1419.56 | M(γ): From (d,pγ) | 2451.65 | M(γ): From (d,pγ) |
2570.10 | 118.3 | E(γ): γ reported in β- decay only | 289.76 | E(γ): γ reported in β- decay only | 562.08 | E(γ): γ reported in β- decay only |
2675 | 735 | E(γ): γ from (d,pγ). Eγ is from level energy difference | 1202 | E(γ): γ from (d,pγ). Eγ is from level energy difference M(γ): From (d,pγ) | 2675 | E(γ): γ from (d,pγ). Eγ is from level energy difference M(γ): From (d,pγ) |
2961.9 | 1488.5 | M(γ): γ(θ) and ΔJπ |
3128 | 3128 | E(γ): γ from (d,pγ). Eγ is from level energy difference |
3227.87 | 657.77 | E(γ): γ reported in β- decay only | 776.19 | E(γ): γ reported in β- decay only | 947.63 | I(γ): from β- decay. Other: 125 40 in (n,γ) | 1220.35 | E(γ): γ reported in β- decay only | 3227.84 | E(γ): γ reported in β- decay only |
3249 | 1776 | E(γ): γ from (d,pγ). Eγ is from level energy difference | 3249 | E(γ): γ from (d,pγ). Eγ is from level energy difference |
3390 | 3390 | E(γ): γ from (d,pγ). Eγ is from level energy difference |
3508.64 | 205.7 | E(γ): γ reported in β- decay only | 801.1 | E(γ): γ reported in β- decay only | 1057.2 | E(γ): γ reported in β- decay only | 1501.00 | E(γ): γ reported in β- decay only |
E(level) | E(gamma) | Comments |
3672.1 | 1593.2 | I(γ): branching ratios are from (11B,p3nγ). In (α,nγ), Iγ(1593)/Iγ(284)=3.2, but 284γ in this reaction is unresolved. M(γ): M1+E2, δ=+0.30 3 from γ(θ,pol) data in (α,nγ). E2 required by 15/2- assignment proposed in (11B,p3nγ) (2001St14) |
3755 | 1747 | E(γ): γ from (d,pγ). Eγ is from level energy difference | 3755 | E(γ): γ from (d,pγ). Eγ is from level energy difference |
5360 | 4328 | E(γ): γ from (d,pγ). Eγ is from level energy difference | 5360 | E(γ): γ from (d,pγ). Eγ is from level energy difference |
89Sr isotope produced and identified in bombardment of Sr with deuterons by 1937St01 (also 1939St01), and fission of uranium by neutrons (1939Li10), followed by measurement of half-life. Later studies of decay of 89Sr: 1946Gr06, 1949Go20, 1955He81, 1959Os37, 1965An07, 1971Ba28, 1972La14, 1982Me04, 1990Sc08, 1998Sc09, 2002Al02, 2005Am01, and several others.
Structure calculations (selected): 2010Ro27, 2002Gr16, 1996Ja24, 1994He43, 1987LiZR, 1986He14
Other reaction:
Resonances from (n,n),(n,γ): in ’88Sr(n,n),(n,γ):Resonances’ dataset. 440 resonances are listed where the excitation energies range from 6370.99 to 7296.26 keV corresponding to resonance (lab) energies of 12.41 to 948.2 keV. Resonance parameters are listed there.
Q-value: Note: Current evaluation has used the following Q record
Q-value: S(2n)=17471.35 18, S(2p)=20077.2 11 (2011AuZZ)
Q-value: Values in 2003Au03: Q(β-)=1492.6 26, S(n)=6358.72 9, S(p)=10889.1 11, Q(α)=-7153.8 22, S(2n)=17471.36 18, S(2p)=20077.7 11