ADOPTED LEVELS, GAMMAS for 182Hf

Author: Balraj Singh |  Citation: Nucl. Data Sheets 130, 21 (2015) |  Cutoff date: 15-Jul-2015 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=381 keV 6S(n)= 6718 keV 6S(p)= 8.54×103 keV 16Q(α)= 1217 keV 12
Reference: 2012WA38

References:
  A  182Lu β- decay (2.0 M)  B  182Hf IT decay (61.5 M)
  C  180Hf(t,p)  D  180Hf(136Xe,134XEG)
  E  180Hf(238U,236UG) 

General Comments:

First identifications of 182Hf: 1961Ar07, 1961Hu01, 1961Na03, 1961Wi09

182Hf produced in 180Hf(2n,γ) (1961Ar07,1961Hu01,1961Na03, 1961Wi09,1971He13)

Structure calculations: 2012Ze02, 2011Li26, 2011No15, 2009Ef01, 2009Ro20, 2008Sa21, 2001Oi03, 2000Xu03

186W could, in principle, undergo α decay to 182Hf. Recent studies by 2004Co26, 2003Bi13, 2003Da05, 2003Ce01 and 1997Ge15 have established upper limit for T1/2(α) for 186W as |>8.2x1021 y (2004Co26) with 90% confidence limit

Q-value: S(2n)=12413 6, S(2p)=16030 300 (syst) (2012Wa38)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
      0.0ABCDE 0+ 8.90×10+6 y 9 
% β- = 100
     
     97.79 9 ABCDE 2+      97.79 9 
  100
E2
      0.0
0+
    322.17 14 ABCDE (4+)     224.38 10 
  100
(E2)
     97.79
2+
    666.27 17  BCDE (6+)     344.1 1 
  100
(E2)
    322.17
(4+)
    818.4 3 A C   (1,2+)     720.6 4 
  818.4 4 
  100 10 
  100 25 


     97.79
      0.0
2+
0+
    905.9 5 ?A         808.1 5 
  100

     97.79
2+
   1022 3   C          
   1034 3   C   (0+)        
   1122.07 18  B DE (8+)     455.80 8 
  100
(E2)
    666.27
(6+)
   1172.87 18  B DE (8-) 61.5 m 15 
% IT = 46 2
% β- = 54 2
   50.80 8 
  506.60 8 
   56 7 
  100 8 
(E1)
[M2,E3]
   1122.07
    666.27
(8+)
(6+)
   1265 3   C   (0+)        
   1419.5 5    DE (9-)     246.8 5 
  100

   1172.87
(8-)
   1465  C          
   1497 3   C          
  ≈1590  C          
   1680.3 6    D  (10+)     558.2 5 
  100

   1122.07
(8+)
   1691.9 5    DE (10-)     272.3 5 
  518.9 5 
  100 8 
   79 8 


   1419.5
   1172.87
(9-)
(8-)
   1724 5   C          
   1829 5   C          
   1885 5   C          
   1915 5   C          
   1988.4 5    DE (11-)     296.6 5 
  569.1 5 
  100 7 
   98 7 


   1691.9
   1419.5
(10-)
(9-)
   2214 5   C          
   2280 5   C          
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   2307.3 6    DE (12-)     319.2 5 
  615.0 5 
   90 7 
  100 7 


   1988.4
   1691.9
(11-)
(10-)
   2331.7 8    D  (12+)     651.4 5 
  100

   1680.3
(10+)
   2571.3 12     E (13+) 40 µs 10 
% IT ≈ 100
  264
 
[E1]
   2307.3
(12-)
   2649.3 6    D  (13-)     341.6 5 
  661.0 5 
  100 8 
   92 8 


   2307.3
   1988.4
(12-)
(11-)
   3010.0 7    D  (14-)     360.5 5 
  703.0 5 
  100 7 
   78 6 


   2649.3
   2307.3
(13-)
(12-)
   3065.3 9    D  (14+)     733.6 5 
  100

   2331.7
(12+)
   3869.2 11    D  (16+)     803.9 5 
  100

   3065.3
(14+)
   4733.9 12    D  (18+)     864.7 5 
  100

   3869.2
(16+)

E(level): From least-squares fit to Eγ data for levels populated in γ-ray datasets, others are from (t,p)

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - The g.s. band
      0.0 0+ 8.90×10+6 y 9 
% β- = 100
     
     97.79 9  2+      97.79 9 
  100
E2
      0.0
0+
    322.17 14  (4+)     224.38 10 
  100
(E2)
     97.79
2+
    666.27 17  (6+)     344.1 1 
  100
(E2)
    322.17
(4+)
   1122.07 18  (8+)     455.80 8 
  100
(E2)
    666.27
(6+)
   1680.3 6  (10+)     558.2 5 
  100

   1122.07
(8+)
   2331.7 8  (12+)        
   3065.3 9  (14+)        
   3869.2 11  (16+)     803.9 5 
  100

   3065.3
(14+)
   4733.9 12  (18+)     864.7 5 
  100

   3869.2
(16+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=(8-) band.
   1172.87 18  (8-) 61.5 m 15 
% IT = 46 2
% β- = 54 2 		     
   1419.5 5  (9-)     246.8 5 
  100

   1172.87
(8-)
   1691.9 5  (10-)     272.3 5 
  518.9 5 
  100 8 
   79 8 


   1419.5
   1172.87
(9-)
(8-)
   1988.4 5  (11-)     296.6 5 
  569.1 5 
  100 7 
   98 7 


   1691.9
   1419.5
(10-)
(9-)
   2307.3 6  (12-)     319.2 5 
  615.0 5 
   90 7 
  100 7 


   1988.4
   1691.9
(11-)
(10-)
   2649.3 6  (13-)     341.6 5 
  661.0 5 
  100 8 
   92 8 


   2307.3
   1988.4
(12-)
(11-)
   3010.0 7  (14-)        

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
     97.79 2+      97.79 9 E23.85α=3.85, α(K)=0.995 14, α(L)=2.17 4, α(M)=0.542 8, α(N)=0.1256 19, α(O)=0.01587 24, α(P)=6.26×10-5 9
    322.17 (4+)     224.38 10 (E2)0.198α=0.198 4, α(K)=0.1215 17, α(L)=0.0573 8, α(M)=0.01399 20, α(N)=0.00326 5, α(O)=0.000432 6, α(P)=8.18×10-6 12
    666.27 (6+)     344.1 1 (E2)0.0529α=0.0529, α(K)=0.0381 6, α(L)=0.01136 16, α(M)=0.00272 4, α(N)=0.000636 9, α(O)=8.76×10-5 13, α(P)=2.79E-6 4
   1122.07 (8+)     455.80 8 (E2)0.0245α=0.0245, α(K)=0.0187 3, α(L)=0.00445 7, α(M)=0.001047 15, α(N)=0.000246 4, α(O)=3.48×10-5 5, α(P)=1.422E-6 20
   1172.87 (8-) 61.5 m 15 
% IT = 46 2
% β- = 54 2
   50.80 8 (E1)0.418B(E1)(W.u.)=1.26E-16 19, α=0.418 7, α(L)=0.325 5, α(M)=0.0740 12, α(N)=0.0170 3, α(O)=0.00228 4, α(P)=8.92E-5 14
(8-) 61.5 m 15 
% IT = 46 2
% β- = 54 2
  506.60 8 [M2,E3]0.10B(M2)(W.u.)=4.0×10-12 5, α=0.10 5, α(K)=0.08 4, α(L)=0.018 4, α(M)=0.0042 7, α(N)=0.00100 16, α(O)=0.00015 3, α(P)=7.E-6 4

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.00+ 8.90×10+6 y 9 
% β- = 100
Δ<r2>(182Hf-180Hf)=0.048 fm2 4 (1994An14,1994An09).
E(level): The g.s. band.
Jπ(level): g.s. band members.
     97.792+   E(level): The g.s. band.
Jπ(level): g.s. band members.
    322.17(4+)   E(level): The g.s. band.
Jπ(level): g.s. band members.
    666.27(6+)   E(level): The g.s. band.
Jπ(level): g.s. band members.
   1122.07(8+)   E(level): The g.s. band.
Jπ(level): g.s. band members.
   1172.87(8-) 61.5 m 15 
% IT = 46 2
% β- = 54 2
2006Av01: cross section measurement in 186W(n,n’α) at 14.72-14.88 MeV.
E(level): Kπ=(8-) band.
Jπ(level): Possible member of configuration=π7/2[404]~#π9/2[514], Kπ=(8-).
   1419.5(9-)   E(level): Kπ=(8-) band.
Jπ(level): Possible member of configuration=π7/2[404]~#π9/2[514], Kπ=(8-).
   1680.3(10+)   E(level): The g.s. band.
Jπ(level): g.s. band members.
   1691.9(10-)   E(level): Kπ=(8-) band.
Jπ(level): Possible member of configuration=π7/2[404]~#π9/2[514], Kπ=(8-).
   1988.4(11-)   E(level): Kπ=(8-) band.
Jπ(level): Possible member of configuration=π7/2[404]~#π9/2[514], Kπ=(8-).
   2307.3(12-)   E(level): Kπ=(8-) band.
Jπ(level): Possible member of configuration=π7/2[404]~#π9/2[514], Kπ=(8-).
   2331.7(12+)   E(level): The g.s. band.
Jπ(level): g.s. band members.
   2649.3(13-)   E(level): Kπ=(8-) band.
Jπ(level): Possible member of configuration=π7/2[404]~#π9/2[514], Kπ=(8-).
   3010.0(14-)   E(level): Kπ=(8-) band.
Jπ(level): Possible member of configuration=π7/2[404]~#π9/2[514], Kπ=(8-).
   3065.3(14+)   E(level): The g.s. band.
Jπ(level): g.s. band members.
   3869.2(16+)   E(level): The g.s. band.
Jπ(level): g.s. band members.
   4733.9(18+)   E(level): The g.s. band.
Jπ(level): g.s. band members.

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Additional Gamma Comments:

E(level)E(gamma)Comments
     97.79     97.79M(γ): from intensity balance arguments in IT decay. From intensity balance in IT decay, multipolarities of the transitions in the g.s. band up to 8+ are consistent with E2
    322.17    224.38M(γ): From intensity balance in IT decay, multipolarities of the transitions in the g.s. band up to 8+ are consistent with E2
    666.27    344.1M(γ): From intensity balance in IT decay, multipolarities of the transitions in the g.s. band up to 8+ are consistent with E2
   1122.07    455.80M(γ): From intensity balance in IT decay, multipolarities of the transitions in the g.s. band up to 8+ are consistent with E2
   1172.87     50.80M(γ): from intensity-balance in IT decay
   2571.3    264M(γ): Weisskopf estimate supports E1

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