ADOPTED LEVELS, GAMMAS for 172Lu

Author: Balraj Singh |  Citation: Nucl. Data Sheets 75,199 (1995) |  Cutoff date: 31-May-1995 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-336 keV 25S(n)= 6979 keV 3S(p)= 4719.1 keV 24Q(α)= 2150 keV 3
Reference: 2012WA38

References:
  A  172Hf ε decay (1.87 Y)  B  172Lu IT decay (3.7 M)
  C  172Lu IT decay (440 μs)  D  171Yb(3He,d),(α,t)
  E  174Yb(p,3nγ) 

General Comments:

Hyperfine structure studies: 1992Ne09, 1993BoZR

Cross sections and yields:

1992Ro24: Yb(α,xnp)

1994Mo10, 1992Mo14, 1990Si17: 169Tm(α,n)

1986Gr12, 1986Gr05: (3He,F)

1984Jh01, 1975Ba35: (n,xn) theory

Nuclear structure calculations: 1988Fr16, 1987So10, 1986So15, 1979Ad07, 1978Ko15, 1976Ek02, 1972Ne21, 1966So02

α 4H isomer in 172Lu proposed by 1951Wi08 was not confirmed in later studies (1967Ba57,1960Wi11,1960Bu27)

Levels: Band assignments are from 1976El11

Q-value: Note: Current evaluation has used the following Q record










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    0.0ABCDE 4- 6.70 d 3 
% ε = 100
     
   41.86 4 ABC   1- 3.7 m 5 
% IT = 100
   41.86 4 
   100
M3
    0.0
4-
   65.79 4 A  D  (1)+ 0.332 µs 20     23.9331 2 
   100
E1
   41.86
1-
   68 3    DE (3-)        
   68 3    D  (3+)        
  109.41 10 A C   (1)+ 440 µs 12 
% IT = 100
   67.35 10 
   100
E1
   41.86
1-
  109.85 4 A     (2)+ 2.30 ns 12     44.17 10 
   68.00 10 
    46 8 
   100 10 
E2
[E1]
   65.79
   41.86
(1)+
1-
  111.13 17     E (5-)     111.2 2 
   100

    0.0
4-
  132 3    D  (2+)        
  148 3    D  (5+)        
  168 3     E (4-)      99.6 2 
   100

   68
(3+)
  179.85 4 A     (1)+      69.99 10 
  114.061 3 
    33 4 
   100 11 
M1+E2
M1
  109.85
   65.79
(2)+
(1)+
  191.60 4 A  D  (1)+ ≤ 0.5 ns    11.8
   81.7513 5 
  125.812 3 
     0.3 1 
    40 2 
   100 5 
[M1]
M1+E2
M1+E2
  179.85
  109.85
   65.79
(1)+
(2)+
(1)+
  196.58 11 ?A     (0,1,2)-     154.72 10 ?
   100
M1
   41.86
1-
  204.00 21 ?A     (0+,1+,2+)      12.41 20 ?
   100
[M1]
  191.60
(1)+
  210 3    D  (4+)        
  213.57 17     E (6-) 150 ns   102.5 2 
  213.5 2 
    61 6 
   100 10 
[M1,E2]
[E2]
  111.13
    0.0
(5-)
4-
  232.33 10 A     (1)+      41.13 10 
  122.916 3 
    24 2 
   100 10 
M1+E2
M1+E2
  191.60
  109.41
(1)+
(1)+
  237 5    D  (0+)        
  237.32 14 A     (0-,1-)     127.91 10 
   100
[E1]
  109.41
(1)+
  244.7 3     E (6-)     133.6 2 
   100

  111.13
(5-)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  252.2 3 ?A     (0+,1+)      48.17 20 
   60.65
    ≈8
  ≈100
(M1+E2)
(M1)
  204.00
  191.60
(0+,1+,2+)
(1)+
  290 3     E (5-)     122.2 2 
   100

  168
(4-)
  296 3    D         
  314 5    D  (2+)        
  355 5    D  (3+)        
  399.3 4     E (7-)     154.6 2 
   100

  244.7
(6-)
  406 3    D  (2-)        
  434 3     E (6-)     144.2 2 
   100

  290
(5-)
  437 5    D         
  466 3    D  (3-)        
  513 3    D  (3-)        
  576.8 4     E (8-)     177.5 2 
   100

  399.3
(7-)
  581 3    D  (5+)        
  602 3     E (7-)     168.0 2 
   100

  434
(6-)
  614 5    D  (5+)        
  640 3    D  (5+)        
  663 5    D         
  685 3    D  (6+)        
  720 3    D  (6+)        

Jπ(level): For levels populated in (p,3nγ), Jπ values are tentative and are based on ΔJ=(1) cascade of γ rays above 4- and (3-) bandheads

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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=4- band.
    0.0 4- 6.70 d 3 
% ε = 100
     
  111.13 17  (5-)     111.2 2 
   100

    0.0
4-
  244.7 3  (6-)     133.6 2 
   100

  111.13
(5-)
  399.3 4  (7-)        
  576.8 4  (8-)        
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=3- band.
   68 3  (3-)        
  168 3  (4-)      99.6 2 
   100

   68
(3+)
  290 3  (5-)     122.2 2 
   100

  168
(4-)
  434 3  (6-)        
  602 3  (7-)        
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Kπ=1+ band.
   65.79 4  (1)+ 0.332 µs 20       
   68 3  (3+)     
  132 3  (2+)     
  148 3  (5+)        
  210 3  (4+)        
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - Kπ=0+ band.
  191.60 4  (1)+ ≤ 0.5 ns      
  237 5  (0+)     
  314 5  (2+)     
  355 5  (3+)        
  614 5  (5+)        
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - Kπ=2- band.
  406 3  (2-)        
  466 3  (3-)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - Kπ=4+ band.
  581 3  (5+)        
  685 3  (6+)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 7 - Kπ=5+ band.
  640 3  (5+)        
  720 3  (6+)     

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Additional Gamma Data:















E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
   41.86 1- 3.7 m 5 
% IT = 100
   41.86 4 M3 2.58×104B(M3)(W.u.)=0.054 8, α=2.58×104
   65.79 (1)+ 0.332 µs 20     23.9331 2 E1 3.3B(E1)(W.u.)=1.11E-5 8, α=3.3
  109.41 (1)+ 440 µs 12 
% IT = 100
   67.35 10 E1 0.99B(E1)(W.u.)=8.2E-10 3, α=0.99
  109.85 (2)+ 2.30 ns 12     44.17 10 E2 122B(E2)(W.u.)=200 60, α=122
(2)+ 2.30 ns 12     68.00 10 [E1] 0.96B(E1)(W.u.)=5.2E-6 11, α=0.96
  179.85 (1)+      69.99 10 M1+E20.16 210.7α=10.7
(1)+     114.061 3 M1 2.59α=2.59
  191.60 (1)+ ≤ 0.5 ns    11.8[M1] 79B(M1)(W.u.)≥0.009, α=79
(1)+ ≤ 0.5 ns    81.7513 5 M1+E20.066 156.8B(E2)(W.u.)≥0.8, B(M1)(W.u.)≥0.005, α=6.8
(1)+ ≤ 0.5 ns   125.812 3 M1+E20.16 21.94B(E2)(W.u.)≥1.8, B(M1)(W.u.)≥0.0033, α=1.94
  196.58 (0,1,2)-     154.72 10 M1 1.09α=1.09
  204.00 (0+,1+,2+)      12.41 20 [M1] 256α=256
  213.57 (6-) 150 ns   102.5 2 [M1,E2] 3.3α=3.3 2
(6-) 150 ns   213.5 2 [E2] 0.226B(E2)(W.u.)=0.039, α=0.226
  232.33 (1)+      41.13 10 M1+E20.14 512α=12 3
(1)+     122.916 3 M1+E22.3 101.6α=1.6 1
  237.32 (0-,1-)     127.91 10 [E1] 0.185α=0.185
  252.2 (0+,1+)      48.17 20 (M1+E2)0.2 AP8.2α=8.2
(0+,1+)      60.65(M1) 2.7α=2.7

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
    0.04- 6.70 d 3 
% ε = 100
μ=2.25 10 (1976Kr04,1989Ra17), Q=3.80 7 (1993HaZU)
Δ<r2>(175Lu-172Lu)=-0.2 fm2 (1992Ne09,1993BoZR).
E(level): Kπ=4- band.
   41.861- 3.7 m 5 
% IT = 100
%ε+%β+<0.18 from Iβ+<0.015% (1967Dz10) and ε/β+=11.2 (1971Go40). Only Lu-x rays were seen in the photon spectrum.
   65.79(1)+ 0.332 µs 20  The band assignment is from (3He,d), (α,t) (1976El11). In 172Hf ε decay studies (1979To18,1966Ha23) this level was proposed as the bandhead of a Kπ=0+ band having configuration=((ν 7/2[633])(π 7/2[404])) but a level with this configuration will not be populated in proton transfer reactions (3He,d) and (α,t). Thus the Kπ=0+ assignment is unlikely if it is a common level populated in both studies.
E(level): Kπ=1+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
   68(3-)   E(level): Kπ=3- band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
   68(3+)   E(level): Kπ=1+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  109.41(1)+ 440 µs 12 
% IT = 100
In 172Hf ε decay study, 1979To18 assigned this as 1+ bandhead of configuration=((ν 1/2[521])(π 1/2[541])) but calculations and experimental cross sections in (3He,d), (α,t) (1976El11) suggest E≈66 keV for this bandhead.
  109.85(2)+ 2.30 ns 12  In 172Hf ε decay study, 1979To18 suggest this level as 2+ member of the Kπ=0+ band with configuration=((ν 7/2[633])(π 7/2[404])); the 65.8 and 191.6 levels are assigned as the 0+ and 1+ members, respectively. But from (3He,d) and (α,t) results, the latter two levels are assigned (1976El11) different configurations.
  111.13(5-)   E(level): Kπ=4- band.
  132(2+)   E(level): Kπ=1+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  148(5+)   E(level): Kπ=1+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  168(4-)   E(level): Kπ=3- band.
  179.85(1)+   Probable configuration=((π 5/2[402])(ν 7/2[633])).
  191.60(1)+ ≤ 0.5 ns 1976El11 assign this as 1+ member of a Kπ=0+ band having configuration=((ν 1/2[521])(π 1/2[541])) on the basis of energy calculation and experimental cross sections. 1979To18 assigned this as 1+ member of a Kπ=0+ band with configuration=((ν 7/2[633])(π 7/2[404])). α level with this configuration will not be populated in (3He,d) and (α,t). If this a common level populated in both studies, the latter configuration is unlikely.
E(level): Kπ=0+ band.
  210(4+)   E(level): Kπ=1+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  237(0+)   E(level): Kπ=0+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  244.7(6-)   E(level): Kπ=4- band.
  290(5-)   E(level): Kπ=3- band.
  314(2+)   E(level): Kπ=0+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  355(3+)   E(level): Kπ=0+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  399.3(7-)   E(level): Kπ=4- band.
  406(2-)   E(level): Kπ=2- band.
  434(6-)   E(level): Kπ=3- band.
  466(3-)   E(level): Kπ=2- band.
  576.8(8-)   E(level): Kπ=4- band.
  581(5+)   E(level): Kπ=4+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
E(level)Jπ(level)T1/2(level)Comments
  602(7-)   E(level): Kπ=3- band.
  614(5+)   E(level): Kπ=0+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  640(5+)   E(level): Kπ=5+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  685(6+)   E(level): Kπ=4+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).
  720(6+)   E(level): Kπ=5+ band.
Jπ(level): From comparison of experimental and calculated cross sections in (α,t) and (3He,d).

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Additional Gamma Comments:

E(level)E(gamma)Comments
  237.32  127.91M(γ): from absence of conversion lines in 172Hf ε decay.

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