ADOPTED LEVELS, GAMMAS for 129In
Authors: Janos Timar and Zoltan Elekes, Balraj Singh | Citation: Nucl. Data Sheets 121, 143 (2014) | Cutoff date: 31-May-2014
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=7769 keV 19 | S(n)= 676×101 keV 15 | S(p)= 12885 keV 8 | Q(α)= -1103×101 keV 60 | ||
Reference: 2012WA38 |
References: | |||
A | 129Cd β- decay:MIXED | B | 129In IT decay (8.7 μs) |
C | 129In IT decay (110 MS) | D | 130Cd β-n decay (162 MS) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCD | (9/2+) | 611 ms 5 % β- = 100 % β-n = 0.23 7 | |||||
459 5 | AB | (1/2-) | 1.23 s 3 % β-n = 3.6 4 % β- > 99.7 % IT < 0.3 | |||||
858.8 4 ? | A | (5/2) | 400.5 5 ? 858.1 5 ? | 100 20 47 10 | 459 0.0 | (1/2-) (9/2+) | ||
995.17 17 | AB | (11/2+) | 995.2 2 | 100 | 0.0 | (9/2+) | ||
1020.5 4 ? | A | (5/2) | 561.7 5 ? 1020.3 5 ? | 94 19 100 20 | 459 0.0 | (1/2-) (9/2+) | ||
1091.0 4 ? | A | (3/2-) | 631.9 5 | 100 | 459 | (1/2-) | ||
1354.14 17 | AB | (13/2+) | 359.0 2 1354.1 2 | 100 10 42 4 | 995.17 0.0 | (11/2+) (9/2+) | ||
1422.8 4 | A | (5/2+) | 1422.6 5 | 100 | 0.0 | (9/2+) | ||
1562.0 4 ? | A | (5/2) | 1103.4 5 ? 1561.5 5 ? | 100 20 100 20 | 459 0.0 | (1/2-) (9/2+) | ||
1585.7 5 | A | (9/2+) | 1585.7 5 | 100 | 0.0 | (9/2+) | ||
1630 56 | C | (23/2-) | 0.67 s 10 % IT = ? % β- ≈ 100 | |||||
1632.8 7 ? | A | (5/2-) | 541.8 5 ? | 100 | 1091.0 | (3/2-) | ||
1687.97 25 | AB | (17/2-) | 8.7 µs 7 % IT = 100 | 333.8 2 | 100 | (M2) | 1354.14 | (13/2+) |
1911 56 | C | (29/2+) | 110 ms 15 % β- = ? % IT ≈ 100 | 281.0 2 | 100 | (E3) | 1630 | (23/2-) |
2419.2 4 | A | (13/2-) | 731.1 5 1065.2 5 | 100 20 94 19 | 1687.97 1354.14 | (17/2-) (13/2+) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2918.9 4 ? | A | (5/2) | 2460.2 5 ? 2918.5 5 ? | 100 20 17 3 | 459 0.0 | (1/2-) (9/2+) | ||
3150.2 4 | A | (13/2-) | 1462.2 5 1796.1 5 2155.1 5 | 34 3 100 9 28 6 | 1687.97 1354.14 995.17 | (17/2-) (13/2+) (11/2+) | ||
3183.9 4 | A | 1760.9 5 3184.1 5 | 100 10 16 3 | 1422.8 0.0 | (5/2+) (9/2+) | |||
4578.9 4 ? | A | (5/2-) | 3487.8 5 4119.9 5 | 50 10 100 20 | 1091.0 459 | (3/2-) (1/2-) |
E(level): From least-squares fit to Eγ data, keeping energy of 459-keV isomer fixed
Jπ(level): From shell-model predictions and systematics of neighboring nuclides, unless otherwise stated
E(γ): From 129In IT decay (8.7 μs) when possible
I(γ): From 129Cd β- decay:mixed when multiple values are available
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
1687.97 | (17/2-) | 8.7 µs 7 % IT = 100 | 333.8 2 | (M2) | 0.0816 | B(M2)(W.u.)=0.0312 25, α=0.0816, α(K)=0.0697 10, α(L)=0.00968 14, α(M)=0.00190 3, α(N)=0.000348 5, α(O)=2.51×10-5 4 |
1911 | (29/2+) | 110 ms 15 % β- = ? % IT ≈ 100 | 281.0 2 | (E3) | 0.1695 | B(E3)(W.u.)=0.069 10, α=0.1695, α(K)=0.1299 19, α(L)=0.0320 5, α(M)=0.00646 10, α(N)=0.001123 17, α(O)=5.14E-5 8 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (9/2+) | 611 ms 5 % β- = 100 % β-n = 0.23 7 | Configuration=νh11/2-2~#πg9/2-1. |
459 | (1/2-) | 1.23 s 3 % β-n = 3.6 4 % β- > 99.7 % IT < 0.3 | %β-n: value recommended in 1993Ru01 and 2002Pf04 based on the following measurements: 2.5 5 (1980Lu04), 2.52 52 (1986ReZU), 3.92 19 (1993Ru01). |
995.17 | (11/2+) | Configuration=νh11/2-2~#πg9/2-1. | |
1354.14 | (13/2+) | Configuration=νh11/2-2~#πg9/2-1. |
E(level) | E(gamma) | Comments |
1687.97 | 333.8 | M(γ): α(K)exp in 129In IT decay (8.7 μs) gives M2 or E3; former is more likely from systematics and configuration assignments to levels involved |
1911 | 281.0 | E(γ): from 129In IT decay (110 ms) (2004Sc42,1998FoZY) M(γ): M2 or E3 from observation of K-x rays (2004Ga24,1998FoZY), with preference for E3 from systematics of neighboring nuclides |
1970OsZZ, 1974Gr29, 1975Al11, 1978Al18: 129In produced in thermal neutron fission of 235U followed by mass separation at OSIRIS Studsvik facility, measured half-life, β, β strength functions
Later decay studies: 1980Lu04, 1986Go10
2009Ar04: experiment performed at ISOLDE facility. 1 GeV proton beam hit Ta or W rod producing neutrons close to uranium target where fission is induced. The products were laser ionized after diffusion out the heated target. γ-ray single and coincidence spectra measured with laser on and off by four HPGe detectors. β rays measured by ΔE-E β telescope.
2012Ha25: mass measurement using Penning-trap system at JYFL; mass excess=-72838.0 keV 26
2013Ka08: mass excess=-72379 keV 4 for (1/2-) isomer in 129In measured relative to that of g.s. of 130Xe using Penning-trap system at JYFL facility.
The level scheme is primarily from 129Cd β- decay, and is considered as tentative
Q-value: S(2n)=12082 21, S(2p)=28830 200 (syst), Q(β-n)=2453 18 (2012Wa38)