ADOPTED LEVELS, GAMMAS for 161Tm

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-)=-4.06×103 keV 4S(n)= 9.67×103 keV 5S(p)= 3.12×103 keV 4Q(α)= 2.51×103 keV 4
Reference: 2012WA38

References:
  A  128Te(37Cl,4nγ):SD  B  152Sm(14N,5nγ),165Ho(4He,8NG)
  C  128Te(37Cl,4nγ)  D  161Yb ε decay

General Comments:

Levels: From measurements following chemical separations by Szilard-Chalmers reactions, 1968GrZX report an `isomer’ of 7 min 2. This has not been confirmed. See, however, the comment below on the half-life of the 7.51 level.

Levels: band(a) 7/2[404] band. α=+1/2 branch.

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

Q-value: 2003Au03 report the following: Q(β-)=-4050 30; S(n)=9670 40; 3130 40; and Q(α)=2510 40.










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
       0 BCD 7/2+ 30.2 m 8 
% ε = 100
     
       7.51 24  B D 1/2+ % IT = ?
% ε = ?
     7.4S
 
[M3]
       0
7/2+
      18.90 9  BCD 5/2+ < 50 ns     18.90 12 
   100
(M1)
       0
7/2+
      22.84 17  BCD 3/2+       15.4S
   100

       7.51
1/2+
      78.20 3  BCD 7/2- 110 ns 3      78.20 3 
   100
E1
       0
7/2+
     149.20 9  BC  9/2-       71.0 1 
   100
D
      78.20
7/2-
     159.11 11  BCD 7/2+      140.25 8 
   100
D
      18.90
5/2+
     161.81 8  BC  9/2+      161.8 1 
   100

       0
7/2+
     167.28 18  B D 5/2+      144.43 6 
   100

      22.84
3/2+
     211.10 17  BCD 7/2+      188.28 5 
   100

      22.84
3/2+
     254.80 9  BC  11/2-      105.6 1 
   176.6 1 
   100
    29 1 
M1+E2
E2
     149.20
      78.20
9/2-
7/2-
     326.70 13  BC  9/2+      167.6 1 
   307.8 2 
   100 21 
    21.1 14 
D

     159.11
      18.90
7/2+
5/2+
     337.55 17    D 1/2+,3/2+      314.70 15 
   318.63 18 
   330.10 24 
    97 4 
    23.3 19 
   100 6 
M1(+E2)

M1(+E2)
      22.84
      18.90
       7.51
3/2+
5/2+
1/2+
     347.89 8  BC  11/2+      186.1 1 
   347.9 1 
    53.9 21 
   100 5 
M1+E2

     161.81
       0
9/2+
7/2+
     367.46 25  B D 1/2-      344.72 28 
   359.92 17 
   100 9 
    77 5 


      22.84
       7.51
3/2+
1/2+
     376.64 18  BC  5/2-      353.7 2 
   357.7
   100
  ≤120


      22.84
      18.90
3/2+
5/2+
     417.50 10  BC  13/2-      162.7 1 
   268.3 1 
   100
    34.7 5 
M1+E2
E2
     254.80
     149.20
11/2-
9/2-
     433.31 20    D 3/2+,5/2,7/2+      222.37 20 
   266.0 5 
   410.44 17 
    19 3 
    64 21 
   100 7 



     211.10
     167.28
      22.84
7/2+
5/2+
3/2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     465.80 21    D      298.46 15 
   443.02 24 
   100 6 
    30 5 


     167.28
      22.84
5/2+
3/2+
     515.75 15  BC  11/2+      189.0 1 
   356.6
   100
  ≤127
D

     326.70
     159.11
9/2+
7/2+
     516.57 17  BC  9/2-      139.9 1 
   305.5 2 
  ≤172
   100 2 


     376.64
     211.10
5/2-
7/2+
     531.45 15  BC  11/2+      204.8 1 
   320.4 2 
   372.3
    32 1 
   100 2 
     9.3 5 



     326.70
     211.10
     159.11
9/2+
7/2+
7/2+
     557.34 10  BC  13/2+      209.5 1 
   395.5 1 
    70 15 
   100
M1+E2
E2
     347.89
     161.81
11/2+
9/2+
     577.40 11  BC  15/2- 7.5 ps 17     159.9 1 
   322.6 1 
   100
    84 3 
M1+E2
E2
     417.50
     254.80
13/2-
11/2-
     625.53 20    D      159.67 19 
   192.26 14 
   458.22 16 
    21 5 
    20 2 
   100 4 



     465.80
     433.31
     167.28

3/2+,5/2,7/2+
5/2+
     638.74 12    D      560.48 20 
   100

      78.20
7/2-
     647.89 13    D      569.73 14 
   100

      78.20
7/2-
     678.08 9    D 5/2-      519.12 20 
   599.88 10 
   659.10 14 
     2.4 3 
   100 5 
    12.5 5 

M1(+E2)

     159.11
      78.20
      18.90
7/2+
7/2-
5/2+
     709.66 9    D 5/2-       70.90 10 
   550.0 5 
   631.45 10 
   690.75 20 
     3.5 8 
     1.9 6 
   100 5 
     7.8 7 


M1(+E2)

     638.74
     159.11
      78.20
      18.90

7/2+
7/2-
5/2+
     756.39 15  BC  13/2-      225.0 1 
   239.8 1 
   240.6 1 
   100 2 
   ≤51
   ≤51



     531.45
     516.57
     515.75
11/2+
9/2-
11/2+
     788.50 12  BC  15/2+      231.2
   440.6 1 
    36.5 24 
   100
M1+E2

     557.34
     347.89
13/2+
11/2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     815.60 12  BC  17/2- 3.6 ps 11     238.2 1 
   398.1 1 
   100
    77 4 
M1+E2
E2
     577.40
     417.50
15/2-
13/2-
     989.25 18  B   15/2+      457.8 1 
   100

     531.45
11/2+
    1008.40 13  BC  19/2- 2.6 ps 10     192.8 1 
   431.0 1 
    57 11 
   100
M1+E2
E2
     815.60
     577.40
17/2-
15/2-
    1036.73 12  BC  17/2+      248.2 1 
   479.4 1 
    20 1 
   100
M1+E2
E2
     788.50
     557.34
15/2+
13/2+
    1080.1 3  BC  17/2-      323.7 2 
   100
E2
     756.39
13/2-
    1180.70 12    D      471.00 10 
   532.91 23 
  1022.0 4 
   100 6 
    38 6 
    31 4 



     709.66
     647.89
     159.11
5/2-

7/2+
    1305.03 14  BC  19/2+      268.3 1 
   516.6 2 
    18.9 6 
   100
M1+E2
E2
    1036.73
     788.50
17/2+
15/2+
    1310.10 14  BC  21/2- 1.7 ps 4     301.7 1 
   494.5 1 
    71.4 20 
   100
M1+E2
E2
    1008.40
     815.60
19/2-
17/2-
    1496.1 3  BC  21/2- 2.7 ps 3     416.0 1 
   100
E2
    1080.1
17/2-
    1525.53 16  BC  23/2- 1.1 ps 3     215.4 1 
   517.1 2 
    47 3 
   100
M1+E2
E2
    1310.10
    1008.40
21/2-
19/2-
    1581.65 15  BC  21/2+      276.7 2 
   544.9 1 
    32.8 14 
   100
M1+E2
E2
    1305.03
    1036.73
19/2+
17/2+
    1873.97 16  BC  25/2- 0.55 ps 7     348.4 2 
   563.9 1 
    71 4 
   100
M1+E2
E2
    1525.53
    1310.10
23/2-
21/2-
    1876.72 24  BC  23/2+      295
   571.7 2 
    14.1 8 
   100
M1+E2
E2
    1581.65
    1305.03
21/2+
19/2+
    1996.2 4  BC  25/2- 0.96 ps 5     500.1 2 
   100
E2
    1496.1
21/2-
    2108.95 17  BC  27/2- 1.0 ps 3     235.0 1 
   583.4 1 
    31 4 
   100
M1+E2
E2
    1873.97
    1525.53
25/2-
23/2-
    2172.26 24  BC  25/2+      296
   590.6 2 
     9.3 10 
   100

E2
    1876.72
    1581.65
23/2+
21/2+
    2478.0 3  BC  27/2+      306
   601.3 2 
    44.4 25 
   100


    2172.26
    1876.72
25/2+
23/2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    2480.95 22  BC  29/2- 0.49 ps 14     372.0
   607.0 2 
    49 3 
   100
M1+E2
E2
    2108.95
    1873.97
27/2-
25/2-
    2570.3 4  BC  29/2-      574.1 2 
   100

    1996.2
25/2-
    2736.57 22  BC  31/2-      255.6 2 
   627.6 2 
    35.5 25 
   100
M1+E2
E2
    2480.95
    2108.95
29/2-
27/2-
    2786  C  29/2+      308
   614
    16.9 25 
   100


    2478.0
    2172.26
27/2+
25/2+
    3050.89 23  BC  33/2-      314.4 1 
   570.0 2 
    69.4 14 
   100
D
E2
    2736.57
    2480.95
31/2-
29/2-
    3110  C  31/2+      324
   632
   ≤13
   100


    2786
    2478.0
29/2+
27/2+
    3117  C  (33/2-)      381
   636
    86.5 19 
   100 6 


    2736.57
    2480.95
31/2-
29/2-
    3206.4 5  BC  33/2-      636.1 3 
   100

    2570.3
29/2-
    3255.34 24  BC  35/2-      204.5 1 
   518.4 2 
   100
    65 13 
D

    3050.89
    2736.57
33/2-
31/2-
    3381 BC  35/2-      264?
   330
   644.2
 
 
 



    3117
    3050.89
    2736.57
(33/2-)
33/2-
31/2-
    3441  C  33/2+      331
   655
    11.2 13 
   100


    3110
    2786
31/2+
29/2+
    3476.75 31  BC  37/2-      221.4 1 
   425.9 1 
   100
    66 5 
D

    3255.34
    3050.89
35/2-
33/2-
    3723?  C  (37/2-)      342?
   606?
 
 


    3381
    3117
35/2-
(33/2-)
    3739.7 3  BC  39/2-      263.0 2 
   358
   484.3 1 
   100 5 
    12.7 5 
    59 5 


E2
    3476.75
    3381
    3255.34
37/2-
35/2-
35/2-
    3779  C  35/2+      338
   669
    12.7 19 
   100


    3441
    3110
33/2+
31/2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    3886  C  (37/2-)      680
   100

    3206.4
33/2-
    4012.7 3  BC  41/2- 0.42 ps 10     273.1 1 
   536.2
   100
    92 3 
[M1+E2]
[E2]
    3739.7
    3476.75
39/2-
37/2-
    4084?  C  (39/2-)      361?
   703?
    33 2 
   100 3 


    3723
    3381
(37/2-)
35/2-
    4130  C  37/2+      351?
   689
     6.9 5 
   100 5 


    3779
    3441
35/2+
33/2+
    4330.4 3  BC  43/2- 0.42 ps 10     317.7 1 
   590.6 2 
    92 8 
   100
[M1+E2]
E2
    4012.7
    3739.7
41/2-
39/2-
    4492  C  (39/2+)      713
   100

    3779
35/2+
    4578  C  (41/2-)      692
   100

    3886
(37/2-)
    4656.0 7  BC  45/2- 0.28 ps +15-8     325.1
   643.9
    46 3 
   100
[M1+E2]
[E2]
    4330.4
    4012.7
43/2-
41/2-
    4867  C  (41/2+)      737
   100

    4130
37/2+
    5017.3  C  47/2- 0.21 ps +21-12     361.5
   686.8
    48 5 
   100
[M1+E2]
E2
    4656.0
    4330.4
45/2-
43/2-
    5267  C  (43/2+)      775
   100

    4492
(39/2+)
    5270  C  (45/2-)      692
   100

    4578
(41/2-)
    5394.1  C  49/2- 0.14 ps 3     376.6
   738.1
    37 11 
   100
[M1+E2]
[E2]
    5017.3
    4656.0
47/2-
45/2-
    5675  C  (45/2+)      808
   100

    4867
(41/2+)
    5789.1  C  51/2- 0.10 ps 3     394.8
   771.9
    63 8 
   100
[M1+E2]
[E2]
    5394.1
    5017.3
49/2-
47/2-
    5988  C  (49/2-)      718
   100

    5270
(45/2-)
    6113  C  (47/2+)      846
   100

    5267
(43/2+)
    6216.6  C  53/2- ≤ 0.18 ps    426.7?
   822.5
 
   100

[E2]
    5789.1
    5394.1
51/2-
49/2-
    6560  C  (49/2+)      885
   100

    5675
(45/2+)
    6633.4  C  (55/2-) 0.11 ps 4     844.3
   100
[E2]
    5789.1
51/2-
    6726?  C  (53/2-)      738?
   100

    5988
(49/2-)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    7037?  C  (51/2+)      924?
   100

    6113
(47/2+)
    7110.3  C  (57/2-) 0.08 ps 4     893.7
   100
[E2]
    6216.6
53/2-
    7519?  C  (53/2+)      959?
   100

    6560
(49/2+)
    7533.8  C  (59/2-) 0.07 ps 3     900.4
   100
[E2]
    6633.4
(55/2-)
    8052.8  C  (61/2-) 0.07 ps 2     942.5
   100
[E2]
    7110.3
(57/2-)
    8476.3  C  (63/2-) 0.07 ps 2     942.5
   100
[E2]
    7533.8
(59/2-)
    9034.1  C  (65/2-) 0.11 ps 4     981.3
   100
[E2]
    8052.8
(61/2-)
    9457.6  C  (67/2-) 0.11 ps 4     981.3
   100
[E2]
    8476.3
(63/2-)
   10059.6  C  (69/2-)     1025.5
   100

    9034.1
(65/2-)
   10483.1  C  (71/2-)     1025.5
   100

    9457.6
(67/2-)
   11141?  C  (73/2-)     1081?
   100

   10059.6
(69/2-)
   11582?  C  (75/2-)     1102?
   100

   10483.1
(71/2-)
       XA    J        
   881+XA    J+2      881
   100

       X
J
  1814+XA    J+4      933
   100

   881+X
J+2
  2795+XA    J+6      981
   100

  1814+X
J+4
  3825+XA    J+8     1030
   100

  2795+X
J+6
  4904+XA    J+10     1079
   100

  3825+X
J+8
  6034+XA    J+12     1130
   100

  4904+X
J+10
  7215+XA    J+14     1181
   100

  6034+X
J+12
  8446+XA    J+16     1231
   100

  7215+X
J+14
  9738+X?A    J+18     1292?
   100

  8446+X
J+16

E(level): From a least-squares fit to the listed γ-ray energies.

Jπ(level): For the data from the in-beam studies, the Jπ assignments are based on the expected properties of rotational bands, including level energies, the decrease of γ intensity and the increase of J values with increasing excitation energy. This has been supplemented with the measured γ-ray multipolarities and mixing ratios. These are interpreted as M1+E2 and E2, instead of E1+M2 M2, in keeping with the interpretation of the associated gammas as being intraband transitions.

E(γ): See 161Yb ε decay and the in-beam study of 1984Fo04 for lists of unplaced γ’s that are not given here.

E(γ): In the two heavy-ion studies (1984Fo04, 1995Sm02) where the data sets overlap, the reported Eγ values are identical in almost all cases, except that 1995Sm02 list no uncertainties. For the Eγ data from these studies, those with listed uncertainties are from 1984Fo04 and those without them are from 1995Sm02.

I(γ): The Iγ data for the γ’s from the heavy-ion studies are mostly from 1995Sm02, whose data are more extensive than those of of 1984Fo04 and for which uncertainties are listed in most cases. 1984Fo04 do not list uncertainties for their Iγ data.

M(γ): Assignments are based on the ce data from 161Yb ε decay and the γγ(θ) (DCO) data (1995Wa21). In the latter case, the the evaluator has made the assignments from reported data.

M(γ): For transitions having listed δ values, the multipolarities are shown as M1+E2, rather than E1+M2. This is in keeping with their interpretation as intraband transitions and permits the calculation of the relevant reduced transition probabilities where level T1/2 values are known.

M(γ): For levels having known half-lives, the multipolarities of the crossover quadrupole (ΔJ=2) transitions can be assigned as E2, since RUL eliminates the M2 possibility.

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - 7/2[404] band. α=-1/2 branch.
       0 7/2+ 30.2 m 8 
% ε = 100
     
     347.89 8  11/2+      186.1 1 
   347.9 1 
    53.9 21 
   100 5 
M1+E2

     161.81
       0
9/2+
7/2+
     788.50 12  15/2+      231.2
   440.6 1 
    36.5 24 
   100
M1+E2

     557.34
     347.89
13/2+
11/2+
    1305.03 14  19/2+      268.3 1 
   516.6 2 
    18.9 6 
   100
M1+E2
E2
    1036.73
     788.50
17/2+
15/2+
    1876.72 24  23/2+      295
   571.7 2 
    14.1 8 
   100
M1+E2
E2
    1581.65
    1305.03
21/2+
19/2+
    2478.0 3  27/2+      306
   601.3 2 
    44.4 25 
   100


    2172.26
    1876.72
25/2+
23/2+
    3110 31/2+      324
   632
   ≤13
   100


    2786
    2478.0
29/2+
27/2+
    3779 35/2+      338
   669
    12.7 19 
   100


    3441
    3110
33/2+
31/2+
    4492 (39/2+)      713
   100

    3779
35/2+
    5267 (43/2+)      775
   100

    4492
(39/2+)
    6113 (47/2+)      846
   100

    5267
(43/2+)
    7037 (51/2+)      924?
   100

    6113
(47/2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - 1/2[411] band.
       7.51 24  1/2+ % IT = ?
% ε = ?
     
      22.84 17  3/2+       15.4S
   100

       7.51
1/2+
     167.28 18  5/2+      144.43 6 
   100

      22.84
3/2+
     211.10 17  7/2+      188.28 5 
   100

      22.84
3/2+
     531.45 15  11/2+      204.8 1 
   320.4 2 
   372.3
    32 1 
   100 2 
     9.3 5 



     326.70
     211.10
     159.11
9/2+
7/2+
7/2+
     989.25 18  15/2+      457.8 1 
   100

     531.45
11/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - 5/2[402] band.
      18.90 9  5/2+ < 50 ns      
     159.11 11  7/2+      140.25 8 
   100
D
      18.90
5/2+
     326.70 13  9/2+      167.6 1 
   307.8 2 
   100 21 
    21.1 14 
D

     159.11
      18.90
7/2+
5/2+
     515.75 15  11/2+      189.0 1 
   356.6
   100
  ≤127
D

     326.70
     159.11
9/2+
7/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - 7/2[523] band, α=-1/2 branch.
      78.20 3  7/2- 110 ns 3       
     254.80 9  11/2-      105.6 1 
   176.6 1 
   100
    29 1 
M1+E2
E2
     149.20
      78.20
9/2-
7/2-
     577.40 11  15/2- 7.5 ps 17     159.9 1 
   322.6 1 
   100
    84 3 
M1+E2
E2
     417.50
     254.80
13/2-
11/2-
    1008.40 13  19/2- 2.6 ps 10     192.8 1 
   431.0 1 
    57 11 
   100
M1+E2
E2
     815.60
     577.40
17/2-
15/2-
    1525.53 16  23/2- 1.1 ps 3     215.4 1 
   517.1 2 
    47 3 
   100
M1+E2
E2
    1310.10
    1008.40
21/2-
19/2-
    2108.95 17  27/2- 1.0 ps 3     235.0 1 
   583.4 1 
    31 4 
   100
M1+E2
E2
    1873.97
    1525.53
25/2-
23/2-
    2736.57 22  31/2-      255.6 2 
   627.6 2 
    35.5 25 
   100
M1+E2
E2
    2480.95
    2108.95
29/2-
27/2-
    3255.34 24  35/2-      204.5 1 
   518.4 2 
   100
    65 13 
D

    3050.89
    2736.57
33/2-
31/2-
    3739.7 3  39/2-      263.0 2 
   358
   484.3 1 
   100 5 
    12.7 5 
    59 5 


E2
    3476.75
    3381
    3255.34
37/2-
35/2-
35/2-
    4330.4 3  43/2- 0.42 ps 10     317.7 1 
   590.6 2 
    92 8 
   100
[M1+E2]
E2
    4012.7
    3739.7
41/2-
39/2-
    5017.3 47/2- 0.21 ps +21-12     361.5
   686.8
    48 5 
   100
[M1+E2]
E2
    4656.0
    4330.4
45/2-
43/2-
    5789.1 51/2- 0.10 ps 3     394.8
   771.9
    63 8 
   100
[M1+E2]
[E2]
    5394.1
    5017.3
49/2-
47/2-
    6633.4 (55/2-) 0.11 ps 4     844.3
   100
[E2]
    5789.1
51/2-
    7533.8 (59/2-) 0.07 ps 3     900.4
   100
[E2]
    6633.4
(55/2-)
    8476.3 (63/2-) 0.07 ps 2     942.5
   100
[E2]
    7533.8
(59/2-)
    9457.6 (67/2-) 0.11 ps 4     981.3
   100
[E2]
    8476.3
(63/2-)
   10483.1 (71/2-)     1025.5
   100

    9457.6
(67/2-)
   11582 (75/2-)     1102?
   100

   10483.1
(71/2-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - 7/2[523] band; α=+1/2 branch.
     149.20 9  9/2-        
     417.50 10  13/2-      162.7 1 
   268.3 1 
   100
    34.7 5 
M1+E2
E2
     254.80
     149.20
11/2-
9/2-
     815.60 12  17/2- 3.6 ps 11     238.2 1 
   398.1 1 
   100
    77 4 
M1+E2
E2
     577.40
     417.50
15/2-
13/2-
    1310.10 14  21/2- 1.7 ps 4     301.7 1 
   494.5 1 
    71.4 20 
   100
M1+E2
E2
    1008.40
     815.60
19/2-
17/2-
    1873.97 16  25/2- 0.55 ps 7     348.4 2 
   563.9 1 
    71 4 
   100
M1+E2
E2
    1525.53
    1310.10
23/2-
21/2-
    2480.95 22  29/2- 0.49 ps 14     372.0
   607.0 2 
    49 3 
   100
M1+E2
E2
    2108.95
    1873.97
27/2-
25/2-
    3050.89 23  33/2-      314.4 1 
   570.0 2 
    69.4 14 
   100
D
E2
    2736.57
    2480.95
31/2-
29/2-
    3476.75 31  37/2-      221.4 1 
   425.9 1 
   100
    66 5 
D

    3255.34
    3050.89
35/2-
33/2-
    4012.7 3  41/2- 0.42 ps 10     273.1 1 
   536.2
   100
    92 3 
[M1+E2]
[E2]
    3739.7
    3476.75
39/2-
37/2-
    4656.0 7  45/2- 0.28 ps +15-8     325.1
   643.9
    46 3 
   100
[M1+E2]
[E2]
    4330.4
    4012.7
43/2-
41/2-
    5394.1 49/2- 0.14 ps 3     376.6
   738.1
    37 11 
   100
[M1+E2]
[E2]
    5017.3
    4656.0
47/2-
45/2-
    6216.6 53/2- ≤ 0.18 ps    426.7?
   822.5
 
   100

[E2]
    5789.1
    5394.1
51/2-
49/2-
    7110.3 (57/2-) 0.08 ps 4     893.7
   100
[E2]
    6216.6
53/2-
    8052.8 (61/2-) 0.07 ps 2     942.5
   100
[E2]
    7110.3
(57/2-)
    9034.1 (65/2-) 0.11 ps 4     981.3
   100
[E2]
    8052.8
(61/2-)
   10059.6 (69/2-)     1025.5
   100

    9034.1
(65/2-)
   11141 (73/2-)     1081?
   100

   10059.6
(69/2-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - 1/2[541] band. α=+1/2 branch.
     367.46 25  1/2-        
     376.64 18  5/2-      353.7 2 
   357.7
   100
  ≤120


      22.84
      18.90
3/2+
5/2+
     516.57 17  9/2-      139.9 1 
   305.5 2 
  ≤172
   100 2 


     376.64
     211.10
5/2-
7/2+
     756.39 15  13/2-      225.0 1 
   239.8 1 
   240.6 1 
   100 2 
   ≤51
   ≤51



     531.45
     516.57
     515.75
11/2+
9/2-
11/2+
    1080.1 3  17/2-      323.7 2 
   100
E2
     756.39
13/2-
    1496.1 3  21/2- 2.7 ps 3     416.0 1 
   100
E2
    1080.1
17/2-
    1996.2 4  25/2- 0.96 ps 5     500.1 2 
   100
E2
    1496.1
21/2-
    2570.3 4  29/2-      574.1 2 
   100

    1996.2
25/2-
    3206.4 5  33/2-      636.1 3 
   100

    2570.3
29/2-
    3886 (37/2-)      680
   100

    3206.4
33/2-
    4578 (41/2-)      692
   100

    3886
(37/2-)
    5270 (45/2-)      692
   100

    4578
(41/2-)
    5988 (49/2-)      718
   100

    5270
(45/2-)
    6726 (53/2-)      738?
   100

    5988
(49/2-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 7 - possible 3/2[411] band.
     337.55 17  1/2+,3/2+        
     433.31 20  3/2+,5/2,7/2+      222.37 20 
   266.0 5 
   410.44 17 
    19 3 
    64 21 
   100 7 



     211.10
     167.28
      22.84
7/2+
5/2+
3/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 8 - TRIAXIAL SD band.
       X J        
   881+X J+2      881
   100

       X
J
  1814+X J+4      933
   100

   881+X
J+2
  2795+X J+6      981
   100

  1814+X
J+4
  3825+X J+8     1030
   100

  2795+X
J+6
  4904+X J+10     1079
   100

  3825+X
J+8
  6034+X J+12     1130
   100

  4904+X
J+10
  7215+X J+14     1181
   100

  6034+X
J+12
  8446+X J+16     1231
   100

  7215+X
J+14
  9738+X J+18     1292?
   100

  8446+X
J+16

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Additional Gamma Data:















E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
      18.90 5/2+ < 50 ns     18.90 12 (M1) 67.7B(M1)(W.u.)>0.00092, α=67.7 16
      78.20 7/2- 110 ns 3      78.20 3 E1 0.635B(E1)(W.u.)=2.66E-6 8, α=0.635
     254.80 11/2-      105.6 1 M1+E20.23 6 
     347.89 11/2+      186.1 1 M1+E20.64 13 
     417.50 13/2-      162.7 1 M1+E20.26 3 
     557.34 13/2+      209.5 1 M1+E20.67 18 
     577.40 15/2- 7.5 ps 17     159.9 1 M1+E20.162 220.810B(E2)(W.u.)=1.3×102 5, B(M1)(W.u.)=0.26 6, α=0.810
15/2- 7.5 ps 17     322.6 1 E2 0.0575B(E2)(W.u.)=1.3×102 3, α=0.0575
     788.50 15/2+      231.2M1+E20.55 7 
     815.60 17/2- 3.6 ps 11     238.2 1 M1+E20.17 30.267B(E2)(W.u.)=54 25, B(M1)(W.u.)=0.21 7, α=0.267
17/2- 3.6 ps 11     398.1 1 E2 0.0314B(E2)(W.u.)=1.1×102 4, α=0.0314
    1008.40 19/2- 2.6 ps 10     192.8 1 M1+E20.15 30.480B(E2)(W.u.)=1.1×102 7, B(M1)(W.u.)=0.35 16, α=0.480
19/2- 2.6 ps 10     431.0 1 E2 0.0253B(E2)(W.u.)=1.5×102 6, α=0.0253
    1036.73 17/2+      248.2 1 M1+E20.45 13 
    1305.03 19/2+      268.3 1 M1+E20.48 20 
    1310.10 21/2- 1.7 ps 4     301.7 1 M1+E20.26 30.1381B(E2)(W.u.)=63 21, B(M1)(W.u.)=0.17 4, α=0.1381 22
21/2- 1.7 ps 4     494.5 1 E2 0.01762B(E2)(W.u.)=1.2×102 3, α=0.01762
    1496.1 21/2- 2.7 ps 3     416.0 1 E2 0.0279B(E2)(W.u.)=3.1×102 4, α=0.0279
    1525.53 23/2- 1.1 ps 3     215.4 1 M1+E20.18 40.352B(E2)(W.u.)=1.9×102 10, B(M1)(W.u.)=0.55 16, α=0.352 6
23/2- 1.1 ps 3     517.1 2 E2 0.01572B(E2)(W.u.)=1.6×102 5, α=0.01572
    1581.65 21/2+      276.7 2 M1+E20.46 16 
    1873.97 25/2- 0.55 ps 7     348.4 2 M1+E20.227 190.0947B(E2)(W.u.)=75 16, B(M1)(W.u.)=0.36 5, α=0.0947
25/2- 0.55 ps 7     563.9 1 E2 0.01267B(E2)(W.u.)=1.9×102 3, α=0.01267
    1876.72 23/2+      295M1+E20.42 9 
    1996.2 25/2- 0.96 ps 5     500.1 2 E2 0.01712B(E2)(W.u.)=356 19, α=0.01712
E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
    2108.95 27/2- 1.0 ps 3     235.0 1 M1+E20.128 230.279B(E2)(W.u.)=5.×101 3, B(M1)(W.u.)=0.37 12, α=0.279
27/2- 1.0 ps 3     583.4 1 E2 0.01167B(E2)(W.u.)=1.1×102 4, α=0.01167
    2480.95 29/2- 0.49 ps 14     372.0M1+E20.15 30.0808B(E2)(W.u.)=22 11, B(M1)(W.u.)=0.27 8, α=0.0808
29/2- 0.49 ps 14     607.0 2 E2 0.01061B(E2)(W.u.)=1.7×102 5, α=0.01061
    2736.57 31/2-      255.6 2 M1+E20.125 17 
    4012.7 41/2- 0.42 ps 10     273.1 1 [M1+E2]0.3 LT0.187B(E2)(W.u.)<8.3×102, B(M1)(W.u.)=1.2 3, α=0.187 4
41/2- 0.42 ps 10     536.2[E2] B(E2)(W.u.)=2.6×102 7
    4330.4 43/2- 0.42 ps 10     317.7 1 [M1+E2]0.3 LT0.122B(E2)(W.u.)<3.7×102, B(M1)(W.u.)>0.50, α=0.122 4
43/2- 0.42 ps 10     590.6 2 E2 0.01133B(E2)(W.u.)=1.8×102 5, α=0.01133
    4656.0 45/2- 0.28 ps +15-8     325.1[M1+E2]0.3 LT0.114B(E2)(W.u.)<2.7×102, B(M1)(W.u.)>0.64, α=0.114 3
45/2- 0.28 ps +15-8     643.9[E2] B(E2)(W.u.)=2.3×102 +7-13
    5017.3 47/2- 0.21 ps +21-12     361.5[M1+E2]0.3 LT0.0862B(E2)(W.u.)<2.2×102, B(M1)(W.u.)>0.64, α=0.0862 23
47/2- 0.21 ps +21-12     686.8E2 B(E2)(W.u.)=2.2×102 +13-22
    5394.1 49/2- 0.14 ps 3     376.6[M1+E2]0.3 LT0.0774B(E2)(W.u.)<3.1×102, B(M1)(W.u.)=0.8 3, α=0.0774 21
49/2- 0.14 ps 3     738.1[E2] B(E2)(W.u.)=2.5×102 6
    5789.1 51/2- 0.10 ps 3     394.8[M1+E2]0.3 LT0.0683B(E2)(W.u.)<4.7×102, B(M1)(W.u.)>0.83, α=0.0683 19
51/2- 0.10 ps 3     771.9[E2] B(E2)(W.u.)=2.4×102 8
    6633.4 (55/2-) 0.11 ps 4     844.3[E2] B(E2)(W.u.)=2.3×102 9
    7110.3 (57/2-) 0.08 ps 4     893.7[E2] B(E2)(W.u.)=2.4×102 12
    7533.8 (59/2-) 0.07 ps 3     900.4[E2] B(E2)(W.u.)=2.6×102 12
    8052.8 (61/2-) 0.07 ps 2     942.5[E2] B(E2)(W.u.)=2.1×102 6
    8476.3 (63/2-) 0.07 ps 2     942.5[E2] B(E2)(W.u.)=2.1×102 6
    9034.1 (65/2-) 0.11 ps 4     981.3[E2] B(E2)(W.u.)=1.1×102 4
    9457.6 (67/2-) 0.11 ps 4     981.3[E2] B(E2)(W.u.)=1.1×102 4

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
       07/2+ 30.2 m 8 
% ε = 100
Q=+2.90 7, μ=+2.40 2
From an evaluation of data on nuclear rms charge radii, 2004An14 report <r2>1/2=5.162 fm 5.
E(level): From an evaluation of data on nuclear rms charge radii, 2004An14 report <r2>1/2=5.162 fm 5. 7/2[404] band. α=-1/2 branch.
       7.511/2+ % IT = ?
% ε = ?
Because of its low energy and its sole possible γ-decay mode, namely M3 to the g.s., this level is expected to have a half-life of the order of minutes. In such a case, an ε+β+ decay branch would be expected. Neither of these possibilities, however, has yet been reported.
E(level): Because of its low energy and its sole possible γ-decay mode, namely M3 to the g.s., this level is expected to have a half-life of the order of minutes. In such a case, an ε+β+ decay branch would be expected. Neither of these possibilities, however, has yet been reported. 1/2[411] band.
Jπ(level): The pattern of transitions populating of these levels from higher-lying levels suggests that they are members of the same rotational band. The spin sequence adopted here is consistent with the pattern of populating γ rays; and the energy spacings within the proposed band are what is expected for the proposed configuration, namely 1/2[411], an orbital that is expected to occur at a low energy in 161Tm.
      18.905/2+ < 50 ns E(level): 5/2[402] band.
      22.843/2+   E(level): 1/2[411] band.
Jπ(level): The pattern of transitions populating of these levels from higher-lying levels suggests that they are members of the same rotational band. The spin sequence adopted here is consistent with the pattern of populating γ rays; and the energy spacings within the proposed band are what is expected for the proposed configuration, namely 1/2[411], an orbital that is expected to occur at a low energy in 161Tm.
      78.207/2- 110 ns 3  E(level): 7/2[523] band, α=-1/2 branch.
     149.209/2-   E(level): 7/2[523] band; α=+1/2 branch.
     159.117/2+   E(level): 5/2[402] band.
     167.285/2+   E(level): 1/2[411] band.
Jπ(level): The pattern of transitions populating of these levels from higher-lying levels suggests that they are members of the same rotational band. The spin sequence adopted here is consistent with the pattern of populating γ rays; and the energy spacings within the proposed band are what is expected for the proposed configuration, namely 1/2[411], an orbital that is expected to occur at a low energy in 161Tm.
     211.107/2+   E(level): 1/2[411] band.
Jπ(level): The pattern of transitions populating of these levels from higher-lying levels suggests that they are members of the same rotational band. The spin sequence adopted here is consistent with the pattern of populating γ rays; and the energy spacings within the proposed band are what is expected for the proposed configuration, namely 1/2[411], an orbital that is expected to occur at a low energy in 161Tm.
     254.8011/2-   E(level): 7/2[523] band, α=-1/2 branch.
     326.709/2+   E(level): 5/2[402] band.
     337.551/2+,3/2+   E(level): possible 3/2[411] band.
     347.8911/2+   E(level): 7/2[404] band. α=-1/2 branch.
     367.461/2-   E(level): 1/2[541] band. α=+1/2 branch.
     376.645/2-   E(level): 1/2[541] band. α=+1/2 branch.
     417.5013/2-   E(level): 7/2[523] band; α=+1/2 branch.
     433.313/2+,5/2,7/2+   E(level): possible 3/2[411] band.
     515.7511/2+   E(level): 5/2[402] band.
     516.579/2-   E(level): 1/2[541] band. α=+1/2 branch.
     531.4511/2+   E(level): 1/2[411] band.
     577.4015/2- 7.5 ps 17  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
     756.3913/2-   E(level): 1/2[541] band. α=+1/2 branch.
     788.5015/2+   E(level): 7/2[404] band. α=-1/2 branch.
     815.6017/2- 3.6 ps 11  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
     989.2515/2+   E(level): 1/2[411] band.
E(level)Jπ(level)T1/2(level)Comments
    1008.4019/2- 2.6 ps 10  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
    1080.117/2-   E(level): 1/2[541] band. α=+1/2 branch.
    1305.0319/2+   E(level): 7/2[404] band. α=-1/2 branch.
    1310.1021/2- 1.7 ps 4  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
    1496.121/2- 2.7 ps 3  E(level): 1/2[541] band. α=+1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
    1525.5323/2- 1.1 ps 3  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
    1873.9725/2- 0.55 ps 7  E(level): 7/2[523] band; α=+1/2 branch.
    1876.7223/2+   E(level): 7/2[404] band. α=-1/2 branch.
    1996.225/2- 0.96 ps 5  E(level): 1/2[541] band. α=+1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
    2108.9527/2- 1.0 ps 3  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
    2478.027/2+   E(level): 7/2[404] band. α=-1/2 branch.
    2480.9529/2- 0.49 ps 14  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From recoil-distance measurements in 128Te(37Cl,4nγ).
    2570.329/2-   E(level): 1/2[541] band. α=+1/2 branch.
    2736.5731/2-   E(level): 7/2[523] band, α=-1/2 branch.
    3050.8933/2-   E(level): 7/2[523] band; α=+1/2 branch.
    311031/2+   E(level): 7/2[404] band. α=-1/2 branch.
    3206.433/2-   E(level): 1/2[541] band. α=+1/2 branch.
    3255.3435/2-   E(level): 7/2[523] band, α=-1/2 branch.
    3476.7537/2-   E(level): 7/2[523] band; α=+1/2 branch.
    3739.739/2-   E(level): 7/2[523] band, α=-1/2 branch.
    377935/2+   E(level): 7/2[404] band. α=-1/2 branch.
    3886(37/2-)   E(level): 1/2[541] band. α=+1/2 branch.
    4012.741/2- 0.42 ps 10  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    4330.443/2- 0.42 ps 10  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    4492(39/2+)   E(level): 7/2[404] band. α=-1/2 branch.
E(level)Jπ(level)T1/2(level)Comments
    4578(41/2-)   E(level): 1/2[541] band. α=+1/2 branch.
    4656.045/2- 0.28 ps +15-8  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    5017.347/2- 0.21 ps +21-12  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    5267(43/2+)   E(level): 7/2[404] band. α=-1/2 branch.
    5270(45/2-)   E(level): 1/2[541] band. α=+1/2 branch.
    5394.149/2- 0.14 ps 3  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    5789.151/2- 0.10 ps 3  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    5988(49/2-)   E(level): 1/2[541] band. α=+1/2 branch.
    6113(47/2+)   E(level): 7/2[404] band. α=-1/2 branch.
    6216.653/2- ≤ 0.18 ps E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    6633.4(55/2-) 0.11 ps 4  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    6726(53/2-)   E(level): 1/2[541] band. α=+1/2 branch.
    7037(51/2+)   E(level): 7/2[404] band. α=-1/2 branch.
    7110.3(57/2-) 0.08 ps 4  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    7533.8(59/2-) 0.07 ps 3  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    8052.8(61/2-) 0.07 ps 2  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    8476.3(63/2-) 0.07 ps 2  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    9034.1(65/2-) 0.11 ps 4  E(level): 7/2[523] band; α=+1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
    9457.6(67/2-) 0.11 ps 4  E(level): 7/2[523] band, α=-1/2 branch.
T1/2(level): From DSAM studies in 128Te(37Cl,4nγ). See the comments there regarding the evaluator’s treatment of those data.
   10059.6(69/2-)   E(level): 7/2[523] band; α=+1/2 branch.
   10483.1(71/2-)   E(level): 7/2[523] band, α=-1/2 branch.
   11141(73/2-)   E(level): 7/2[523] band; α=+1/2 branch.
   11582(75/2-)   E(level): 7/2[523] band, α=-1/2 branch.
       XJ   E(level): TRIAXIAL SD band.
   881+XJ+2   E(level): TRIAXIAL SD band.
E(level)Jπ(level)T1/2(level)Comments
  1814+XJ+4   E(level): TRIAXIAL SD band.
  2795+XJ+6   E(level): TRIAXIAL SD band.
  3825+XJ+8   E(level): TRIAXIAL SD band.
  4904+XJ+10   E(level): TRIAXIAL SD band.
  6034+XJ+12   E(level): TRIAXIAL SD band.
  7215+XJ+14   E(level): TRIAXIAL SD band.
  8446+XJ+16   E(level): TRIAXIAL SD band.
  9738+XJ+18   E(level): TRIAXIAL SD band.

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Additional Gamma Comments:

E(level)E(gamma)Comments
      18.90      18.90M(γ): δ|<0.10 (1981Ad02).
      78.20      78.20M(γ): δ|<0.045 (1981Ad02).
     211.10     188.28M(γ): γ(θ) suggests γ is dipole, but placement has ΔJ=2. ce data suggest E1 or E2.
     417.50     268.3E(γ): Multiply placed with intensity suitably divided
I(γ): Multiply placed with intensity suitably divided
     515.75     189.0M(γ): From γ(θ), 1984Fo04.
     356.6I(γ): From 1995Sm02, where γ is part of a peak containing two γ’s.
     516.57     139.9I(γ): From 1995Sm02, where γ is part of a peak containing two γ’s.
     756.39     239.8I(γ): From 1995Sm02, where γ is part of a peak containing two γ’s.
     240.6I(γ): From 1995Sm02, where γ is part of a peak containing two γ’s.
    1305.03     268.3E(γ): Multiply placed with intensity suitably divided
I(γ): Multiply placed with intensity suitably divided
    2172.26     590.6E(γ): Multiply placed with intensity suitably divided
I(γ): Multiply placed with intensity suitably divided
    3110     324E(γ): 1995Sm02 report Eγ=234 for this transition. The evaluator has assumed that this is a misprint.
    4330.4     590.6E(γ): Multiply placed with intensity suitably divided
I(γ): Multiply placed with intensity suitably divided
    4578     692E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
    5270     692E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
    8052.8     942.5E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
    8476.3     942.5E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
    9034.1     981.3E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
    9457.6     981.3E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
   10059.6    1025.5E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity
   10483.1    1025.5E(γ): Multiply placed with undivided intensity
I(γ): Multiply placed with undivided intensity

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