ADOPTED LEVELS, GAMMAS for 162Hf

Author: N. Nica |  Citation: Nucl. Data Sheets 195, 1 (2024) |  Cutoff date: 19-Sep-2023 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-9390 keV 60S(n)= 10924 keV 25S(p)= 3895 keV 29Q(α)= 4416 keV 5
Reference: 2021WA16

References:
  A  126Te(40Ca,4nγ),  B  162Ta ε decay
  C  166W α decay 

General Comments:

Data for the excited states are from 126Te(40Ca,4nγ) study (1988Hu05,1988Bi02). Data for ground state are from its ε and α decay.

Levels: For theoretical calculations see 1986Ra18.

Q-value: S(2n)=19372 13, S(2p)=5583 11, Q(εp)=1377 17 (2021Wa16)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
      0.0ABC 0+ 39.4 s 9 
% ε = 99.992 1
% α = 0.008 1
     
    285.0AB  2+ 103 ps 8     285.0
  100
[E2]
      0.0
0+
    729.5AB  4+      444.5
  100

    285.0
2+
   1292.8A   6+      563.4
  100

    729.5
4+
   1649.3A   5-      919.8
  100

    729.5
4+
   1735.1A   4-     1005.4
  100

    729.5
4+
   1940.1A   8+      647.0
  100

   1292.8
6+
   2038.7A   7-      389.7
   745.8
   11
  100


   1649.3
   1292.8
5-
6+
   2117.7A   6-      382.4
   468.2
   825.5
   75
  100
 



   1735.1
   1649.3
   1292.8
4-
5-
6+
   2439.0A   8-      321.5
   400.3
   498.6
  100
   72
   36



   2117.7
   2038.7
   1940.1
6-
7-
8+
   2488.5A   9-      449.6
   548.6
  100
   79


   2038.7
   1940.1
7-
8+
   2575.8A   9-      537.4
   635.4
  100
   69


   2038.7
   1940.1
7-
8+
   2623.2A   10-      134.9
   184.1
 
 


   2488.5
   2439.0
9-
8-
   2635.4A   10+      695.3
  100

   1940.1
8+
   2818.6A   11-      195.6
   242.9
   330.0
 
   66
  100



   2623.2
   2575.8
   2488.5
10-
9-
9-
   3030.6A   12-      407.4
  100

   2623.2
10-
   3185.4A   12+      550.0
  100

   2635.4
10+
   3247.5A   13-      428.9
  100

   2818.6
11-
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   3386.2?A   (12+)      750.8
  100

   2635.4
10+
   3566.8A   14+      381.4
  100

   3185.4
12+
   3580.4A   14-      549.8
  100

   3030.6
12-
   3811.5A   15-      564.0
  100

   3247.5
13-
   3996.7?A   (14+)      610.5
  100

   3386.2
(12+)
   4067.5A   16+      500.7
  100

   3566.8
14+
   4237.8A   16-      657.4
  100

   3580.4
14-
   4489.4A   17-      677.9
  100

   3811.5
15-
   4554.7?A   (16+)      558.0
  100

   3996.7
(14+)
   4652.5A   18+      585.0
  100

   4067.5
16+
   4973.8A   18-      736.0
  100

   4237.8
16-
   5167.8?A   (18+)      613.1
  100

   4554.7
(16+)
   5250.9A   19-      761.5
  100

   4489.4
17-
   5310.3A   20+      657.8
  100

   4652.5
18+
   5775.8A   20-      802.0
  100

   4973.8
18-
   5806.6?A   (20+)      638.8
  100

   5167.8
(18+)
   6035.3A   22+      725.0
  100

   5310.3
20+
   6064.8A   21-      813.9
  100

   5250.9
19-
   6594.3A   (22-)      818.5
 

   5775.8
20-
   6827.7A   24+      792.4
  100

   6035.3
22+
   6834.3A   23-      769.5
  100

   6064.8
21-
   7421.8A   (24-)      827.5
 

   6594.3
(22-)
   7583.0A   25-      748.7
  100

   6834.3
23-
   7688.8A   26+      861.1
  100

   6827.7
24+
   7793.9A        966.2
  100

   6827.7
24+
   8357.4A   (27-)      774.4
  100

   7583.0
25-
   8482.8A   28+      794.0
  100

   7688.8
26+
   8665.4A        872.0
   976.1
   60
  100


   7793.9
   7688.8

26+
   9184.8?A   (29-)      827.4?
 

   8357.4
(27-)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   9279.3A   30+      796.5
  100

   8482.8
28+
  10143.0A   32+      863.7
  100

   9279.3
30+
  11073.7A   34+      930.7
  100

  10143.0
32+
  12058.0A   36+      984.3
  100

  11073.7
34+
  13101.6?A   (38+)     1043.6?
  100

  12058.0
36+
  14178.0?A   (40+)     1076.4?
  100

  13101.6
(38+)

E(level): From in-beam study.

Jπ(level): From in-beam study (1988Hu05 and agree with those of 1988Bi02) and based on expected structure of bands and interpretation of γ(θ) data.

E(γ): From in-beam study (1988Hu05). From general comment, uncertainties are 0.3 keV increasing to 1.0 keV for weak transitions and doublets. Values of 1988Bi02 are systematically slightly higher.

E(γ): Unplaced γ’s from the in-beam study (1988Hu05) are not included here.

I(γ): From in-beam study (1988Hu05). From general comment, uncertainties are 5% to 20%.

M(γ): 1988Hu05 give Iγ(30|’)/Iγ(80|’) results which are suggestive of the multipolarity, but these authors do not give the multipolarities deduced.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Kπ=0+ ground-state band
      0.0 0+ 39.4 s 9 
% ε = 99.992 1
% α = 0.008 1
     
    285.0 2+ 103 ps 8     285.0
  100
[E2]
      0.0
0+
    729.5 4+      444.5
  100

    285.0
2+
   1292.8 6+      563.4
  100

    729.5
4+
   1940.1 8+      647.0
  100

   1292.8
6+
   2635.4 10+      695.3
  100

   1940.1
8+
   3185.4 12+      550.0
  100

   2635.4
10+
   3566.8 14+      381.4
  100

   3185.4
12+
   4067.5 16+      500.7
  100

   3566.8
14+
   4652.5 18+      585.0
  100

   4067.5
16+
   5310.3 20+      657.8
  100

   4652.5
18+
   6035.3 22+      725.0
  100

   5310.3
20+
   6827.7 24+      792.4
  100

   6035.3
22+
   7688.8 26+      861.1
  100

   6827.7
24+
   8482.8 28+      794.0
  100

   7688.8
26+
   9279.3 30+      796.5
  100

   8482.8
28+
  10143.0 32+      863.7
  100

   9279.3
30+
  11073.7 34+      930.7
  100

  10143.0
32+
  12058.0 36+      984.3
  100

  11073.7
34+
  13101.6 (38+)     1043.6?
  100

  12058.0
36+
  14178.0 (40+)     1076.4?
  100

  13101.6
(38+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Negative-parity, odd-spin band; signature=1
   1649.3 5-        
   2038.7 7-      389.7
   745.8
   11
  100


   1649.3
   1292.8
5-
6+
   2818.6 11-      195.6
   242.9
   330.0
 
   66
  100



   2623.2
   2575.8
   2488.5
10-
9-
9-
   3247.5 13-      428.9
  100

   2818.6
11-
   3811.5 15-      564.0
  100

   3247.5
13-
   4489.4 17-      677.9
  100

   3811.5
15-
   5250.9 19-      761.5
  100

   4489.4
17-
   6064.8 21-      813.9
  100

   5250.9
19-
   6834.3 23-      769.5
  100

   6064.8
21-
   7583.0 25-      748.7
  100

   6834.3
23-
   8357.4 (27-)      774.4
  100

   7583.0
25-
   9184.8 (29-)      827.4?
 

   8357.4
(27-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Negative-parity, even-spin band; signature=0
   1735.1 4-        
   2117.7 6-      382.4
   468.2
   825.5
   75
  100
 



   1735.1
   1649.3
   1292.8
4-
5-
6+
   2439.0 8-      321.5
   400.3
   498.6
  100
   72
   36



   2117.7
   2038.7
   1940.1
6-
7-
8+
   2623.2 10-      134.9
   184.1
 
 


   2488.5
   2439.0
9-
8-
   3030.6 12-      407.4
  100

   2623.2
10-
   3580.4 14-      549.8
  100

   3030.6
12-
   4237.8 16-      657.4
  100

   3580.4
14-
   4973.8 18-      736.0
  100

   4237.8
16-
   5775.8 20-      802.0
  100

   4973.8
18-
   6594.3 (22-)      818.5
 

   5775.8
20-
   7421.8 (24-)      827.5
 

   6594.3
(22-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - Positive-parity, even-spin band; signature=0
   3386.2 (12+)        
   3996.7 (14+)      610.5
  100

   3386.2
(12+)
   4554.7 (16+)      558.0
  100

   3996.7
(14+)
   5167.8 (18+)      613.1
  100

   4554.7
(16+)
   5806.6 (20+)      638.8
  100

   5167.8
(18+)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
    285.0 2+ 103 ps 8     285.0[E2]0.0925B(E2)(W.u.)=51.0 +43-37, α=0.0925, α(K)=0.0630 9, α(L)=0.0226 4, α(M)=0.00545 8, α(N)=0.001273 18, α(O)=0.0001723 25, α(P)=4.46E-6 7

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.00+ 39.4 s 9 
% ε = 99.992 1
% α = 0.008 1
E(level): Kπ=0+ ground-state band.
    285.02+ 103 ps 8  μ=0.58 14
E(level): Kπ=0+ ground-state band.
    729.54+   E(level): Kπ=0+ ground-state band.
   1292.86+   E(level): Kπ=0+ ground-state band.
   1649.35-   E(level): Negative-parity, odd-spin band; signature=1.
   1735.14-   E(level): Negative-parity, even-spin band; signature=0.
   1940.18+   E(level): Kπ=0+ ground-state band.
   2038.77-   E(level): Negative-parity, odd-spin band; signature=1.
   2117.76-   E(level): Negative-parity, even-spin band; signature=0.
   2439.08-   E(level): Negative-parity, even-spin band; signature=0.
   2623.210-   E(level): Negative-parity, even-spin band; signature=0.
   2635.410+   E(level): Kπ=0+ ground-state band.
   2818.611-   E(level): Negative-parity, odd-spin band; signature=1.
   3030.612-   E(level): Negative-parity, even-spin band; signature=0.
   3185.412+   E(level): Kπ=0+ ground-state band.
   3247.513-   E(level): Negative-parity, odd-spin band; signature=1.
   3386.2(12+)   E(level): Positive-parity, even-spin band; signature=0.
   3566.814+   E(level): Kπ=0+ ground-state band.
   3580.414-   E(level): Negative-parity, even-spin band; signature=0.
   3811.515-   E(level): Negative-parity, odd-spin band; signature=1.
   3996.7(14+)   E(level): Positive-parity, even-spin band; signature=0.
   4067.516+   E(level): Kπ=0+ ground-state band.
   4237.816-   E(level): Negative-parity, even-spin band; signature=0.
   4489.417-   E(level): Negative-parity, odd-spin band; signature=1.
   4554.7(16+)   E(level): Positive-parity, even-spin band; signature=0.
E(level)Jπ(level)T1/2(level)Comments
   4652.518+   E(level): Kπ=0+ ground-state band.
   4973.818-   E(level): Negative-parity, even-spin band; signature=0.
   5167.8(18+)   E(level): Positive-parity, even-spin band; signature=0.
   5250.919-   E(level): Negative-parity, odd-spin band; signature=1.
   5310.320+   E(level): Kπ=0+ ground-state band.
   5775.820-   E(level): Negative-parity, even-spin band; signature=0.
   5806.6(20+)   E(level): Positive-parity, even-spin band; signature=0.
   6035.322+   E(level): Kπ=0+ ground-state band.
   6064.821-   E(level): Negative-parity, odd-spin band; signature=1.
   6594.3(22-)   E(level): Negative-parity, even-spin band; signature=0.
   6827.724+   E(level): Kπ=0+ ground-state band.
   6834.323-   E(level): Negative-parity, odd-spin band; signature=1.
   7421.8(24-)   E(level): Negative-parity, even-spin band; signature=0.
   7583.025-   E(level): Negative-parity, odd-spin band; signature=1.
   7688.826+   E(level): Kπ=0+ ground-state band.
   8357.4(27-)   E(level): Negative-parity, odd-spin band; signature=1.
   8482.828+   E(level): Kπ=0+ ground-state band.
   9184.8(29-)   E(level): Negative-parity, odd-spin band; signature=1.
   9279.330+   E(level): Kπ=0+ ground-state band.
  10143.032+   E(level): Kπ=0+ ground-state band.
  11073.734+   E(level): Kπ=0+ ground-state band.
  12058.036+   E(level): Kπ=0+ ground-state band.
  13101.6(38+)   E(level): Kπ=0+ ground-state band.
  14178.0(40+)   E(level): Kπ=0+ ground-state band.

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