ADOPTED LEVELS, GAMMAS for 160Re

Author: N. Nica |  Citation: Nucl. Data Sheets 176, 1 (2021) |  Cutoff date: 1-May-2021 

 Full ENSDF file | Adopted Levels (PDF version) 


S(n)= 10150 keV SYS(p)= -1267 keV 7Q(α)= 6698 keV 4
Reference: 2021WA16

References:
  A  160Re IT decay (2.8 μs)  B  164Ir α decay (70 μs)
  C  106Cd(58Ni,p3nγ) 

General Comments:

Although the assignment of γ rays to 160Re was made by their correlations with characteristic proton and α decay of the 160Re ground state, the exact placement of those γ rays in the level scheme in not unambiguous

Gammas: Unplaced γ’s in 106Cd(58Ni,p3nγ) dataset

Q-value: ΔS(n)=430 (syst,2021Wa16)

Q-value: S(2p)=340 360, Q(εp)=10270 300 (syst,2021Wa16)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
      0.0AB  (4-) 612 µs 7 
% p = 89 1
% α = 11 1
     
     50 3 AB  (6-)      50 3 ?
  100
[E2]
      0.0
(4-)
     88 4 AB  (7+)      38 1 
  100
(E1)
     50
(6-)
    184 4 AB  (9+) 2.8 µs 1     96 1 
  100
(E2)
     88
(7+)
  184+X  C (10+)       X
 

    184
(9+)
   1021.4+X 3   C (12+)     837.4 3 
  100

  184+X
(10+)
   1647.5+X 6   C (14+)     626.1 5 
  100

   1021.4+X
(12+)
   1824.7+X 6   C (16+)     177.2 2 
  100

   1647.5+X
(14+)

E(level): From Eγ data. Level ordering assumed based on systematics of odd-odd n=85 isotones is rather tentative

Jπ(level): Assigned by 2011Da01 for levels from the (9+) isomer to g.s. based on syst and measured or assumed γ ray multipolarities; assigned by 2011Sa59 from systematics of n=85 isomers for levels of the γ sequence

M(γ): From 2011Da01 (160Re IT decay) unless otherwise stated.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - γ sequence based on (10+).
  184+X (10+)        
   1021.4+X 3  (12+)     837.4 3 
  100

  184+X
(10+)
   1647.5+X 6  (14+)     626.1 5 
  100

   1021.4+X
(12+)
   1824.7+X 6  (16+)     177.2 2 
  100

   1647.5+X
(14+)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
     50 (6-)      50 3 [E2]90α=90 32, α(L)=68 25, α(M)=17.4 62, α(N)=4.1 15, α(O)=0.58 21, α(P)=5.2×10-4 14
     88 (7+)      38 1 (E1)1.02α=1.02 8, α(L)=0.79 6, α(M)=0.184 15, α(N)=0.043 4, α(O)=0.0062 5, α(P)=0.000223 14
    184 (9+) 2.8 µs 1     96 1 (E2)4.86B(E2)(W.u.)=0.082 6, α=4.86 23, α(K)=0.891 18, α(L)=3.00 16, α(M)=0.76 4, α(N)=0.181 10, α(O)=0.0258 14, α(P)=8.52E-5 25

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.0(4-) 612 µs 7 
% p = 89 1
% α = 11 1
From comparison of observed and calculated proton-decay half-lives, 2011Da12 deduce that the proton emission likely takes place from the d3/2 orbital.
  184+X(10+)   E(level): γ sequence based on (10+).
   1021.4+X(12+)   E(level): γ sequence based on (10+).
   1647.5+X(14+)   E(level): γ sequence based on (10+).
   1824.7+X(16+)   E(level): γ sequence based on (10+).

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Additional Gamma Comments:

E(level)E(gamma)Comments
     50     50E(γ): weak γ observed in singles spectra but not confirmed by γγ coin (2011Da01, IT decay)
     88     38M(γ): from the prompt relationship between 38γ and 96γ and the intensity balance (2011Da01, IT decay)
    184     96M(γ): α(K)exp=1.2 4 deduced from Iγ(K| x ray) and Iγ(96γ) (α(K)=0.891 18 theory) (2011Da01, IT decay)
  184+X      XE(γ): based on Fig. 5 of 2011Sa59 in (58Ni,p3nγ) dataset of the systematics of energy levels built upon 9/2- and 10+ states in n=85 isotones one expects x<81 keV

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