ADOPTED LEVELS, GAMMAS for 161Yb

Author: C. W. Reich |  Citation: Nucl. Data Sheets 112,2497 (2011) |  Cutoff date: 1-Jun-2011 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-5.28×103 keV 4S(n)= 7746 keV 22S(p)= 4.83×103 keV 4Q(α)= 3.13×103 keV 3
Reference: 2012WA38

References:
  A  148Sm(16O,3nγ),122Sn(44Ca,5nγ)  B  161Lu ε decay








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
      0AB 3/2- 4.2 m 2 
% ε = 100
     
     43.67 18 AB 5/2-       43.7 3 
  100
[M1,E2]
      0
3/2-
    110.79 9 AB 7/2-       67.13 20 
   110.78 10 
   48 5 
  100 9 
[M1,E2]
[E2]
     43.67
      0
5/2-
3/2-
    197.20 25  B       86.79 15 
  100

    110.79
7/2-
    211.08 12  B (3/2-)      100.32 10 
   211.10 20 
  100 9 
   21 10 


    110.79
      0
7/2-
3/2-
    211.1A  (9/2+)      100.3
 

    110.79
7/2-
    220.7A  9/2-      109.9
   176.9 1 
 
 


    110.79
     43.67
7/2-
5/2-
    230.6A  (13/2+)        
    367.28 14  B      156.24 10 
   170.08 20 
   256.24 25 
  100 10 
   29 8 
  100 16 



    211.08
    197.20
    110.79
(3/2-)

7/2-
    462.6A  (17/2+) 85 ps 6     232.0
 
E2
    230.6
(13/2+)
    552.7A  13/2- 6 ps 3     332.0
 
[E2]
    220.7
9/2-
    703.0A  (15/2+)      240.4
   472.4
 
 
M1+E2
M1+E2
    462.6
    230.6
(17/2+)
(13/2+)
    859.9A  (21/2+) 7.2 ps 6     397.3
 
E2
    462.6
(17/2+)
   1006.7A  17/2- 3.5 ps 21     454.0
 
[E2]
    552.7
13/2-
   1117.0A  (19/2+)      256.4
   414.5
   653.9
   49 12 
  100
   72 15 
M1+E2

M1+E2
    859.9
    703.0
    462.6
(21/2+)
(15/2+)
(17/2+)
   1382.3A  (25/2+) 1.5 ps 3     522.4
 
E2
    859.9
(21/2+)
   1535.9A  21/2- < 21 ps    529.2
 
[E2]
   1006.7
17/2-
   1649.0A  (23/2+)      264.7
   532.8
   788.9
   15 3 
  100
   49 9 
M1+E2

M1+E2
   1382.3
   1117.0
    859.9
(25/2+)
(19/2+)
(21/2+)
   1999.2A  (29/2+) 1.6 ps 3     616.9
 
E2
   1382.3
(25/2+)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   2044.4A  (25/2-)      508.5
 

   1535.9
21/2-
   2098.1A  25/2-      562.2
 

   1535.9
21/2-
   2259.0A  (27/2+)      610.5
 

   1649.0
(23/2+)
   2304.6A  (27/2-)      922.3
 

   1382.3
(25/2+)
   2478.3A  29/2-      380.2
   433.5
 
 


   2098.1
   2044.4
25/2-
(25/2-)
   2560.6A  (29/2-)      516.2
 

   2044.4
(25/2-)
   2680.1A  (33/2+) < 1.4 ps    680.9
 
E2
   1999.2
(29/2+)
   2686.5A  (31/2-)      381.9
   687.3
 
 


   2304.6
   1999.2
(27/2-)
(29/2+)
   2915.7A  33/2- 4.2 ps 8     355.1
   437.4
 
 


   2560.6
   2478.3
(29/2-)
29/2-
   2919.0A  (31/2+)      660.1
 

   2259.0
(27/2+)
   3108.8A  (33/2-)      548.2
 

   2560.6
(29/2-)
   3167.4A  (35/2-)      480.9
   487.3?
 
 


   2686.5
   2680.1
(31/2-)
(33/2+)
   3387.4A  (37/2+)      707.3
 
E2
   2680.1
(33/2+)
   3443.5A  37/2- < 2.8 ps    527.8
 
[E2]
   2915.7
33/2-
   3627.0A  (35/2+)      708.0
 

   2919.0
(31/2+)
   3712.6A  (37/2-)      603.8
 

   3108.8
(33/2-)
   3766.9A  (39/2-)      599.5
 

   3167.4
(35/2-)
   4074.9A  41/2-      631.4
 

   3443.5
37/2-
   4092.5A  (41/2+)      705.1
 

   3387.4
(37/2+)
   4350.0A  (39/2+)      723.0
 

   3627.0
(35/2+)
   4382.8A  (41/2-)      670.2
 

   3712.6
(37/2-)
   4473.2A  (43/2-)      706.3
 

   3766.9
(39/2-)
   4811.4A  45/2-      736.5
 

   4074.9
41/2-
   4812.0A  (45/2+)      719.5
 

   4092.5
(41/2+)
   5142.9A  (45/2-)      760.1
 

   4382.8
(41/2-)
   5266.4A  (47/2-)      793.2
 

   4473.2
(43/2-)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   5578.6A  (49/2+)      766.6
 

   4812.0
(45/2+)
   5631.6A  49/2-      820.1
 

   4811.4
45/2-
   5963.5A  (49/2-)      820.6
 

   5142.9
(45/2-)
   6120.2A  (51/2-)      853.0
 

   5266.4
(47/2-)
   6405.6A  (53/2+)      827.0
 

   5578.6
(49/2+)
   6500.1A  53/2-      868.6
 

   5631.6
49/2-
   6813.8A  (53/2-)      850.3
 

   5963.5
(49/2-)
   6977.5A  (55/2-)      857.3
 

   6120.2
(51/2-)
   7288.8A  (57/2+)      883.2
 

   6405.6
(53/2+)
   7347.4A  57/2-      847.3
 

   6500.1
53/2-
   7876.7A  (59/2-)      899.2
 

   6977.5
(55/2-)
   8194.7A  61/2-      847.3
 

   7347.4
57/2-
   8198.0A  (61/2+)      909.2
 

   7288.8
(57/2+)
   8832.3A  (63/2-)      955.6
 

   7876.7
(59/2-)
   9090.2A  65/2-      895.5
 

   8194.7
61/2-
   9095.0A  (65/2+)      897.0
 

   8198.0
(61/2+)
   9844.3A  (67/2-)     1012.0
 

   8832.3
(63/2-)
  10010.5A  (69/2+)      915.5
 

   9095.0
(65/2+)
  10053.2A  69/2-      963.0
 

   9090.2
65/2-
  10914.3?A  (71/2-)     1070.0?
 

   9844.3
(67/2-)
  10972.5A  (73/2+)      962.0
 

  10010.5
(69/2+)
  11105.2A  73/2-     1052.0
 

  10053.2
69/2-
  11988.5A  (77/2+)     1016.0
 

  10972.5
(73/2+)
  12044.3?A  (75/2-)     1130.0?
 

  10914.3
(71/2-)
  12218.2A  77/2-     1113.0
 

  11105.2
73/2-
  13054.5A  (81/2+)     1066.0
 

  11988.5
(77/2+)
  13364.5A  81/2-     1146.3
 

  12218.2
77/2-
  14181.5A  (85/2+)     1127.0
 

  13054.5
(81/2+)
  14531.5A  85/2-     1167.0
 

  13364.5
81/2-
  15709.4?A  (89/2-)     1177.9?
 

  14531.5
85/2-

E(level): For those levels seen only in the (HI,xnγ) reactions, the level energies are those listed by 1990TeZW from the 122Sn(44Ca,5n) reaction. For the others, they are computed from the γ energies.

Jπ(level): The spins from the heavy-ion studies are based largely on the observed γ-deexcitation of the levels, general considerations of rotational-band structure and γ(θ) data, which, especially, establish a sequence of stretched E2 transitions. With the exception of those for the members of the g.s. band, the Jπ values are shown in parentheses.

T1/2(level): Unless noted otherwise, the values are from the in-beam study of 1988Fe01, using the recoil-distance technique. Preliminary values are given by the same authors for six excited levels (1985Fe02).

E(γ): The unplaced γ’s from the ε decay of 161Lu (1980Be39) are not included here.

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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=3/2- GS band.
      0 3/2- 4.2 m 2 
% ε = 100
     
     43.67 18  5/2-       43.7 3 
  100
[M1,E2]
      0
3/2-
    110.79 9  7/2-       67.13 20 
   110.78 10 
   48 5 
  100 9 
[M1,E2]
[E2]
     43.67
      0
5/2-
3/2-
    220.7 9/2-      109.9
   176.9 1 
 
 


    110.79
     43.67
7/2-
5/2-
    552.7 13/2- 6 ps 3     332.0
 
[E2]
    220.7
9/2-
   1006.7 17/2- 3.5 ps 21     454.0
 
[E2]
    552.7
13/2-
   1535.9 21/2- < 21 ps    529.2
 
[E2]
   1006.7
17/2-
   2098.1 25/2-        
   2478.3 29/2-      380.2
   433.5
 
 


   2098.1
   2044.4
25/2-
(25/2-)
   2915.7 33/2- 4.2 ps 8     355.1
   437.4
 
 


   2560.6
   2478.3
(29/2-)
29/2-
   3443.5 37/2- < 2.8 ps    527.8
 
[E2]
   2915.7
33/2-
   4074.9 41/2-      631.4
 

   3443.5
37/2-
   4811.4 45/2-      736.5
 

   4074.9
41/2-
   5631.6 49/2-      820.1
 

   4811.4
45/2-
   6500.1 53/2-      868.6
 

   5631.6
49/2-
   7347.4 57/2-      847.3
 

   6500.1
53/2-
   8194.7 61/2-      847.3
 

   7347.4
57/2-
   9090.2 65/2-      895.5
 

   8194.7
61/2-
  10053.2 69/2-      963.0
 

   9090.2
65/2-
  11105.2 73/2-     1052.0
 

  10053.2
69/2-
  12218.2 77/2-     1113.0
 

  11105.2
73/2-
  13364.5 81/2-     1146.3
 

  12218.2
77/2-
  14531.5 85/2-     1167.0
 

  13364.5
81/2-
  15709.4 (89/2-)     1177.9?
 

  14531.5
85/2-
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - NEGATIVE-PARITY band. α=+1/2.
   2044.4 (25/2-)        
   2560.6 (29/2-)      516.2
 

   2044.4
(25/2-)
   3108.8 (33/2-)      548.2
 

   2560.6
(29/2-)
   3712.6 (37/2-)      603.8
 

   3108.8
(33/2-)
   4382.8 (41/2-)      670.2
 

   3712.6
(37/2-)
   5142.9 (45/2-)      760.1
 

   4382.8
(41/2-)
   5963.5 (49/2-)      820.6
 

   5142.9
(45/2-)
   6813.8 (53/2-)        
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - NEGATIVE-PARITY band. α=-1/2.
   2304.6 (27/2-)        
   2686.5 (31/2-)      381.9
   687.3
 
 


   2304.6
   1999.2
(27/2-)
(29/2+)
   3167.4 (35/2-)      480.9
   487.3?
 
 


   2686.5
   2680.1
(31/2-)
(33/2+)
   3766.9 (39/2-)      599.5
 

   3167.4
(35/2-)
   4473.2 (43/2-)      706.3
 

   3766.9
(39/2-)
   5266.4 (47/2-)      793.2
 

   4473.2
(43/2-)
   6120.2 (51/2-)      853.0
 

   5266.4
(47/2-)
   6977.5 (55/2-)        
   7876.7 (59/2-)      899.2
 

   6977.5
(55/2-)
   8832.3 (63/2-)      955.6
 

   7876.7
(59/2-)
   9844.3 (67/2-)     1012.0
 

   8832.3
(63/2-)
  10914.3 (71/2-)     1070.0?
 

   9844.3
(67/2-)
  12044.3 (75/2-)     1130.0?
 

  10914.3
(71/2-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - yrast band, α=+1/2.
    211.1 (9/2+)        
    230.6 (13/2+)     
    462.6 (17/2+) 85 ps 6     232.0
 
E2
    230.6
(13/2+)
    859.9 (21/2+) 7.2 ps 6     397.3
 
E2
    462.6
(17/2+)
   1382.3 (25/2+) 1.5 ps 3     522.4
 
E2
    859.9
(21/2+)
   1999.2 (29/2+) 1.6 ps 3     616.9
 
E2
   1382.3
(25/2+)
   2680.1 (33/2+) < 1.4 ps    680.9
 
E2
   1999.2
(29/2+)
   3387.4 (37/2+)        
   4092.5 (41/2+)      705.1
 

   3387.4
(37/2+)
   4812.0 (45/2+)      719.5
 

   4092.5
(41/2+)
   5578.6 (49/2+)      766.6
 

   4812.0
(45/2+)
   6405.6 (53/2+)      827.0
 

   5578.6
(49/2+)
   7288.8 (57/2+)      883.2
 

   6405.6
(53/2+)
   8198.0 (61/2+)      909.2
 

   7288.8
(57/2+)
   9095.0 (65/2+)      897.0
 

   8198.0
(61/2+)
  10010.5 (69/2+)      915.5
 

   9095.0
(65/2+)
  10972.5 (73/2+)      962.0
 

  10010.5
(69/2+)
  11988.5 (77/2+)     1016.0
 

  10972.5
(73/2+)
  13054.5 (81/2+)     1066.0
 

  11988.5
(77/2+)
  14181.5 (85/2+)     1127.0
 

  13054.5
(81/2+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - POSITIVE-PARITY band, α=-1/2.
    703.0 (15/2+)        
   1117.0 (19/2+)      256.4
   414.5
   653.9
   49 12 
  100
   72 15 
M1+E2

M1+E2
    859.9
    703.0
    462.6
(21/2+)
(15/2+)
(17/2+)
   1649.0 (23/2+)      264.7
   532.8
   788.9
   15 3 
  100
   49 9 
M1+E2

M1+E2
   1382.3
   1117.0
    859.9
(25/2+)
(19/2+)
(21/2+)
   2259.0 (27/2+)      610.5
 

   1649.0
(23/2+)
   2919.0 (31/2+)      660.1
 

   2259.0
(27/2+)
   3627.0 (35/2+)      708.0
 

   2919.0
(31/2+)
   4350.0 (39/2+)      723.0
 

   3627.0
(35/2+)

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Additional Gamma Data:















E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
    462.6 (17/2+) 85 ps 6     232.0E2 0.1650B(E2)(W.u.)=163 12, α=0.1650
    552.7 13/2- 6 ps 3     332.0[E2] 0.0547B(E2)(W.u.)=4.3×102 22, α=0.0547
    703.0 (15/2+)      240.4M1+E2-0.17 80.283α=0.283 6
(15/2+)      472.4M1+E2+0.6 40.040α=0.040 7
    859.9 (21/2+) 7.2 ps 6     397.3E2 0.0328B(E2)(W.u.)=148 13, α=0.0328
   1006.7 17/2- 3.5 ps 21     454.0[E2] 0.0229B(E2)(W.u.)=1.6×102 10, α=0.0229
   1117.0 (19/2+)      256.4M1+E2-0.20 110.236α=0.236 7
(19/2+)      653.9M1+E2+0.5 +10-10.018α=0.018 6
   1382.3 (25/2+) 1.5 ps 3     522.4E2 0.01597B(E2)(W.u.)=1.8×102 4, α=0.01597
   1535.9 21/2- < 21 ps    529.2[E2] 0.01546B(E2)(W.u.)>12, α=0.01546
   1649.0 (23/2+)      264.7M1+E2-0.20 10 
(23/2+)      788.9M1+E2+0.40 150.0119α=0.0119 7
   1999.2 (29/2+) 1.6 ps 3     616.9E2 0.01066B(E2)(W.u.)=75 15, α=0.01066
   2680.1 (33/2+) < 1.4 ps    680.9E2 0.00848B(E2)(W.u.)>52, α=0.00848
   3387.4 (37/2+)      707.3E2 0.00778α=0.00778
   3443.5 37/2- < 2.8 ps    527.8[E2] 0.01556B(E2)(W.u.)>93, α=0.01556

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      03/2- 4.2 m 2 
% ε = 100
Q=+1.03 2, μ=-0.327 8
From an evaluation of data on nuclear rms charge radii, 2004An14 report <r2>1/2=5.183 fm 8.
E(level): From an evaluation of data on nuclear rms charge radii, 2004An14 report <r2>1/2=5.183 fm 8. Kπ=3/2- GS band.
     43.675/2-   E(level): Kπ=3/2- GS band.
    110.797/2-   E(level): Kπ=3/2- GS band.
    211.1(9/2+)   E(level): yrast band, α=+1/2.
    220.79/2-   E(level): Kπ=3/2- GS band.
    230.6(13/2+)   E(level): yrast band, α=+1/2.
    462.6(17/2+) 85 ps 6  E(level): yrast band, α=+1/2.
    552.713/2- 6 ps 3  E(level): Kπ=3/2- GS band.
    703.0(15/2+)   E(level): POSITIVE-PARITY band, α=-1/2.
    859.9(21/2+) 7.2 ps 6  E(level): yrast band, α=+1/2.
   1006.717/2- 3.5 ps 21  E(level): Kπ=3/2- GS band.
   1117.0(19/2+)   E(level): POSITIVE-PARITY band, α=-1/2.
   1382.3(25/2+) 1.5 ps 3  E(level): yrast band, α=+1/2.
   1535.921/2- < 21 ps E(level): Kπ=3/2- GS band.
   1649.0(23/2+)   E(level): POSITIVE-PARITY band, α=-1/2.
   1999.2(29/2+) 1.6 ps 3  E(level): yrast band, α=+1/2.
   2044.4(25/2-)   E(level): NEGATIVE-PARITY band. α=+1/2.
   2098.125/2-   E(level): Kπ=3/2- GS band.
   2259.0(27/2+)   E(level): POSITIVE-PARITY band, α=-1/2.
   2304.6(27/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   2478.329/2-   E(level): Kπ=3/2- GS band.
   2560.6(29/2-)   E(level): NEGATIVE-PARITY band. α=+1/2.
   2680.1(33/2+) < 1.4 ps E(level): yrast band, α=+1/2.
   2686.5(31/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   2915.733/2- 4.2 ps 8  E(level): Kπ=3/2- GS band.
E(level)Jπ(level)T1/2(level)Comments
   2919.0(31/2+)   E(level): POSITIVE-PARITY band, α=-1/2.
   3108.8(33/2-)   E(level): NEGATIVE-PARITY band. α=+1/2.
   3167.4(35/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   3387.4(37/2+)   E(level): yrast band, α=+1/2.
   3443.537/2- < 2.8 ps E(level): Kπ=3/2- GS band.
   3627.0(35/2+)   E(level): POSITIVE-PARITY band, α=-1/2.
   3712.6(37/2-)   E(level): NEGATIVE-PARITY band. α=+1/2.
   3766.9(39/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   4074.941/2-   E(level): Kπ=3/2- GS band.
   4092.5(41/2+)   E(level): yrast band, α=+1/2.
   4350.0(39/2+)   E(level): POSITIVE-PARITY band, α=-1/2.
   4382.8(41/2-)   E(level): NEGATIVE-PARITY band. α=+1/2.
   4473.2(43/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   4811.445/2-   E(level): Kπ=3/2- GS band.
   4812.0(45/2+)   E(level): yrast band, α=+1/2.
   5142.9(45/2-)   E(level): NEGATIVE-PARITY band. α=+1/2.
   5266.4(47/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   5578.6(49/2+)   E(level): yrast band, α=+1/2.
   5631.649/2-   E(level): Kπ=3/2- GS band.
   5963.5(49/2-)   E(level): NEGATIVE-PARITY band. α=+1/2.
   6120.2(51/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   6405.6(53/2+)   E(level): yrast band, α=+1/2.
   6500.153/2-   E(level): Kπ=3/2- GS band.
   6813.8(53/2-)   E(level): NEGATIVE-PARITY band. α=+1/2.
   6977.5(55/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
E(level)Jπ(level)T1/2(level)Comments
   7288.8(57/2+)   E(level): yrast band, α=+1/2.
   7347.457/2-   E(level): Kπ=3/2- GS band.
   7876.7(59/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   8194.761/2-   E(level): Kπ=3/2- GS band.
   8198.0(61/2+)   E(level): yrast band, α=+1/2.
   8832.3(63/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
   9090.265/2-   E(level): Kπ=3/2- GS band.
   9095.0(65/2+)   E(level): yrast band, α=+1/2.
   9844.3(67/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
  10010.5(69/2+)   E(level): yrast band, α=+1/2.
  10053.269/2-   E(level): Kπ=3/2- GS band.
  10914.3(71/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
  10972.5(73/2+)   E(level): yrast band, α=+1/2.
  11105.273/2-   E(level): Kπ=3/2- GS band.
  11988.5(77/2+)   E(level): yrast band, α=+1/2.
  12044.3(75/2-)   E(level): NEGATIVE-PARITY band. α=-1/2.
  12218.277/2-   E(level): Kπ=3/2- GS band.
  13054.5(81/2+)   E(level): yrast band, α=+1/2.
  13364.581/2-   E(level): Kπ=3/2- GS band.
  14181.5(85/2+)   E(level): yrast band, α=+1/2.
  14531.585/2-   E(level): Kπ=3/2- GS band.
  15709.4(89/2-)   E(level): Kπ=3/2- GS band.

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