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 19S(n)= 676×101 keV 15S(p)= 12885 keV 8Q(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)

General Comments:

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)










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0ABCD (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)
XREFJπ(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

Back to top

Back to top

Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
  1687.97 (17/2-) 8.7 µs 7 
% IT = 100
   333.8 2 (M2)0.0816B(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)0.1695B(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

Back to top

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
-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.

Back to top

Additional Gamma Comments:

E(level)E(gamma)Comments
  1687.97   333.8M(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   281.0E(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

Back to top