ADOPTED LEVELS, GAMMAS for 151Er

Author: Balraj Singh |  Citation: Nucl. Data Sheets 110, 1 (2009) |  Cutoff date: 20-Nov-2008 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-7.49×103 keV 3S(n)= 8506 keV 24S(p)= 3609 keV 22Q(α)= 3505 keV 19
Reference: 2017WA10

References:
  A  151Er IT decay (0.58 S)  B  151Er IT decay (0.42 μs)
  C  151Tm ε decay (4.17 S)  D  151Tm ε decay (6.6 S)
  E  155Yb α decay (1.793 S) 

General Comments:

Nuclear structure calculations: 2005Od03, 1996Lo01

Q-value: QEC=5356 18$ S(2n)=20670 240$ S(2p)=5148 22$ QECP=3754 17$










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
      0.0ABCDE (7/2-) 23.5 s 20 
% ε = 100
     
    801.52 14 ABC   (9/2-)      801.6 2 
  100

      0.0
(7/2-)
    984.1 4    D  (3/2-)      984.1 4 
  100

      0.0
(7/2-)
   1140.35 14 ABC   (13/2+) 10 ns 3     338.5 2 
  1140.2 2 
    1.1 3 
  100
(M2)
E3
    801.52
      0.0
(9/2-)
(7/2-)
   1206.2 6    D  (1/2-)      222.1 4 
  100
[M1,E2]
    984.1
(3/2-)
   1495.50 19 A C   (9/2-)      354.2 6 ?
   692.8 7 ?
  1495.8 4 
    5.7 18 
    9.0 8 
  100 10 



   1140.35
    801.52
      0.0
(13/2+)
(9/2-)
(7/2-)
   1511.5 3   C   (3/2-:11/2-)     1511.5 3 
  100

      0.0
(7/2-)
   1548.55 17 A C   (11/2-)      408.3 3 ?
  1548.5 3 
    4.3 5 
  100 10 


   1140.35
      0.0
(13/2+)
(7/2-)
   1683.6 3   C   (3/2-:11/2-)     1683.5 4 
  100

      0.0
(7/2-)
   1720.94 16 A C   (11/2+)      225.1 2 
   580.5 2 
   919.3 2 
   16 3 
  100 11 
   17 3 
[E1]
(M1)

   1495.50
   1140.35
    801.52
(9/2-)
(13/2+)
(9/2-)
   2032.4 8 ?   D  (1/2,3/2)     1048.3 6 ?
  100

    984.1
(3/2-)
   2075.25 16 A C   (13/2+)      353.8 2 
   526.8 2 
   935.0 2 
   20 5 
  100 5 
   18 4 
(M1)


   1720.94
   1548.55
   1140.35
(11/2+)
(11/2-)
(13/2+)
   2165.1 4   C       1363.6 3 
  100

    801.52
(9/2-)
   2174.4 5   C       1372.9 4 
  100

    801.52
(9/2-)
   2212.47 18 A C   (15/2+)      136.9 2 
   718.0 4 ?
  1071.3 10 
  1411.4 2 ?
   75 10 
  208 21 
  100 19 
  177 27 
(M1)



   2075.25
   1495.50
   1140.35
    801.52
(13/2+)
(9/2-)
(13/2+)
(9/2-)
   2239.63 22 AB    (17/2+)       28
  1098.9 2 
 
  100
[M1]
E2
   2212.47
   1140.35
(15/2+)
(13/2+)
   2313.6 10   C       2313.6 10 
  100

      0.0
(7/2-)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   2329.6 10   C       2329.6 10 
  100

      0.0
(7/2-)
   2449.4 4   C        765.8 4 
  2449.5 6 
   42 2 
  100 10 


   1683.6
      0.0
(3/2-:11/2-)
(7/2-)
   2451.1 6   C       2451.1 6 
  100

      0.0
(7/2-)
   2528.3 3 AB    (21/2+)      288.7 2 
  100
E2
   2239.63
(17/2+)
   2586.0 5 AB    (27/2-) 0.58 s 2 
% IT = 95.3 4
% ε = 4.7 4
    57.7
  100
E3
   2528.3
(21/2+)
   2611.3 4   C       1809.8 3 
  100

    801.52
(9/2-)
   2621.5 7    D  (1/2+,3/2+)     1637.4 5 
  100

    984.1
(3/2-)
   2776.2 5   C       1092.7 4 
  1635.5 8 
  100 16 
  110 63 


   1683.6
   1140.35
(3/2-:11/2-)
(13/2+)
   2874.8 4   C       1326.2 5 
  2073.3 6 
  100 10 
   67 30 


   1548.55
    801.52
(11/2-)
(9/2-)
   2916.6 3   C   (11/2-,13/2-)     1368.0 4 
  1777.1 10 
  2115.1 3 
    5.6 6 
    6 2 
  100 5 



   1548.55
   1140.35
    801.52
(11/2-)
(13/2+)
(9/2-)
   2921.4 4   C       1199.0 10 
  2120.1 4 
  2921.7 25 
   14 7 
  100 6 
   44 11 



   1720.94
    801.52
      0.0
(11/2+)
(9/2-)
(7/2-)
   2966.1 21    D  (1/2+,3/2+)     1982 2 
  100

    984.1
(3/2-)
   3031.19 22   C   (11/2-,13/2-)      818.6 10 
   956.1 7 
  1483.0 7 
  1535.6 3 
  1890.8 3 
  2229.7 4 
   13 2 
    6.1 11 
   19 5 
   52 11 
   73 5 
  100 16 






   2212.47
   2075.25
   1548.55
   1495.50
   1140.35
    801.52
(15/2+)
(13/2+)
(11/2-)
(9/2-)
(13/2+)
(9/2-)
   3037.3 3   C   (9/2-,11/2-)     1488.5 4 
  1525.9 4 
  2236.0 4 
  3037.5 25 
   60 16 
   72 16 
  100 16 
   64 12 




   1548.55
   1511.5
    801.52
      0.0
(11/2-)
(3/2-:11/2-)
(9/2-)
(7/2-)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   3051.1 21    D  (1/2+,3/2+)     2067 2 
  100

    984.1
(3/2-)
   3094.1 8   C       1953.7 7 
  100

   1140.35
(13/2+)
   3110 3   C       3110 3 
  100

      0.0
(7/2-)
   3212.5 6   C   (9/2+,11/2,13/2-)     2071.7 7 
  2411.9 10 
  100 40 
   44 14 


   1140.35
    801.52
(13/2+)
(9/2-)
   3270.5 5   C       1549.6 9 
  1586.5 6 
  2469.7 9 
  100 10 
   40 20 
   21 3 



   1720.94
   1683.6
    801.52
(11/2+)
(3/2-:11/2-)
(9/2-)
   3288.3 6   C       1123.2 4 
  100

   2165.1

   3341 3   C       2539.2 25 
  100

    801.52
(9/2-)
   3685.9 6  B    (31/2-)     1099.9
 
E2
   2586.0
(27/2-)
   3766.8 8   C        850.1 7 
  100

   2916.6
(11/2-,13/2-)
   3901.5 6  B    (33/2-)      215.6
 
M1
   3685.9
(31/2-)
   4189.8 7  B    (33/2:37/2-)      288.3
 

   3901.5
(33/2-)
   4455.2 7  B    (37/2-)      553.6
 
E2
   3901.5
(33/2-)
   4618.1 7  B    (39/2-)      162.9
   428.3
 
 
M1

   4455.2
   4189.8
(37/2-)
(33/2:37/2-)
   4752.2 8  B    (41/2-)      134.1
 
M1
   4618.1
(39/2-)
   5130.1 8  B    (43/2+)      378.1
 
E1
   4752.2
(41/2-)
   5804.4 8  B    (41/2:45/2-)      674.3
  1052.0
 
 


   5130.1
   4752.2
(43/2+)
(41/2-)
   6131.8 8  B    (45/2+)      327.4
  1001.8
 
 

M1
   5804.4
   5130.1
(41/2:45/2-)
(43/2+)
   6548.0 9  B    (47/2-)      416.1
 
E1
   6131.8
(45/2+)
   6664.3 9  B    (49/2-)      116.3
   532.5
 
 
M1

   6548.0
   6131.8
(47/2-)
(45/2+)
   6771.8 9  B    (51/2+,53/2-)      107.5
 

   6664.3
(49/2-)
   7441.3 9  B    (53/2-)      777.0
 
E2
   6664.3
(49/2-)
   8016.0 9  B    (55/2+)      574.7
  1244.1
 
 
E1

   7441.3
   6771.8
(53/2-)
(51/2+,53/2-)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   8380.3 10  B    (57/2+)      364.3
 
M1
   8016.0
(55/2+)
   9046.2 10  B    (57/2:61/2+)      665.9
 

   8380.3
(57/2+)
   9392.0 10  B    (61/2+)      345.8
  1011.7
 
 

E2
   9046.2
   8380.3
(57/2:61/2+)
(57/2+)
  10286.6 10  B    (67/2-) 0.42 µs 5 
% IT = 100
   894.6
 
(E3)
   9392.0
(61/2+)

E(level): From least-squares fit to Eγ’s, assuming Δ(Eγ)=0.3~keV when not stated

Jπ(level): From shell-model consideration and analogy to 149Dy. For levels populated in 151Tm ε decay (4.17~s), J=9/2, 11/2 or 13/2 from the parent state Jπ=(11/2-). For probable shell-model configurations see 1988Ba02 and 1997Co24

M(γ): From ce data in 151Er IT decay (0.42 μs), some of the assignments are from ce data in 151Er IT decay (0.58 s)

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
   1140.35 (13/2+) 10 ns 3     338.5 2 (M2)0.372B(M2)(W.u.)=0.34 14, α=0.372, α(K)=0.301 5, α(L)=0.0555 8, α(M)=0.01266 18, α(N)=0.00296 5, α(O)=0.000423 6, α(P)=2.20×10-5 4, α(N+)=0.00341 5
(13/2+) 10 ns 3    1140.2 2 E30.00539B(E3)(W.u.)=36 11, α=0.00539, α(K)=0.00440 7, α(L)=0.000771 11, α(M)=0.0001742 25, α(N)=4.04E-5 6, α(O)=5.67E-6 8, α(P)=2.66E-7 4, α(N+)=4.66E-5 7
   1206.2 (1/2-)      222.1 4 [M1,E2]0.24α=0.24 7, α(K)=0.19 7, α(L)=0.041 4, α(M)=0.0095 12, α(N)=0.0022 3, α(O)=0.000292 13, α(P)=1.1×10-5 5, α(N+)=0.0025 3
   1720.94 (11/2+)      225.1 2 [E1]0.0382α=0.0382
(11/2+)      580.5 2 (M1)0.0238α=0.0238, α(K)=0.0201 3, α(L)=0.00289 4, α(M)=0.000639 9, α(N)=0.0001491 21, α(O)=2.16×10-5 3, α(P)=1.213E-6 17, α(N+)=0.0001720 25
   2075.25 (13/2+)      353.8 2 (M1)0.0859α=0.0859, α(K)=0.0724 11, α(L)=0.01059 15, α(M)=0.00234 4, α(N)=0.000546 8, α(O)=7.92×10-5 12, α(P)=4.41E-6 7, α(N+)=0.000630 9
   2212.47 (15/2+)      136.9 2 (M1)1.162α=1.162, α(K)=0.975 15, α(L)=0.1457 22, α(M)=0.0323 5, α(N)=0.00754 11, α(O)=0.001090 16, α(P)=6.01×10-5 9, α(N+)=0.00869 13
   2239.63 (17/2+)       28[M1]19.2α=19.2, α(L)=14.96 21, α(M)=3.32 5, α(N)=0.774 11, α(O)=0.1117 16, α(P)=0.00612 9, α(N+)=0.892 13
(17/2+)     1098.9 2 E20.00277α=0.00277, α(K)=0.00233 4, α(L)=0.000349 5, α(M)=7.74×10-5 11, α(N)=1.80E-5 3, α(O)=2.56E-6 4, α(P)=1.326E-7 19, α(N+)=2.07E-5 3
   2528.3 (21/2+)      288.7 2 E20.0776α=0.0776, α(K)=0.0563 8, α(L)=0.01646 24, α(M)=0.00386 6, α(N)=0.000882 13, α(O)=0.0001129 16, α(P)=2.88×10-6 4, α(N+)=0.000998 15
   2586.0 (27/2-) 0.58 s 2 
% IT = 95.3 4
% ε = 4.7 4
    57.7E31.28×103B(E3)(W.u.)=0.54 5, α=1.28×103
   3685.9 (31/2-)     1099.9E20.00277α=0.00277, α(K)=0.00232 4, α(L)=0.000348 5, α(M)=7.72×10-5 11, α(N)=1.79E-5 3, α(O)=2.56E-6 4, α(P)=1.324E-7 19, α(N+)=2.06E-5 3
   3901.5 (33/2-)      215.6M10.327α=0.327, α(K)=0.275 4, α(L)=0.0407 6, α(M)=0.00903 13, α(N)=0.00211 3, α(O)=0.000305 5, α(P)=1.685×10-5 24, α(N+)=0.00243 4
   4455.2 (37/2-)      553.6E20.01271α=0.01271, α(K)=0.01023 15, α(L)=0.00193 3, α(M)=0.000438 7, α(N)=0.0001012 15, α(O)=1.382×10-5 20, α(P)=5.71E-7 8, α(N+)=0.0001156 17
   4618.1 (39/2-)      162.9M10.712α=0.712, α(K)=0.598 9, α(L)=0.0891 13, α(M)=0.0198 3, α(N)=0.00461 7, α(O)=0.000666 10, α(P)=3.68×10-5 6, α(N+)=0.00531 8
   4752.2 (41/2-)      134.1M11.232α=1.232, α(K)=1.034 15, α(L)=0.1545 22, α(M)=0.0343 5, α(N)=0.00799 12, α(O)=0.001156 17, α(P)=6.37×10-5 9, α(N+)=0.00921 13
   5130.1 (43/2+)      378.1E10.01059α=0.01059, α(K)=0.00896 13, α(L)=0.001275 18, α(M)=0.000281 4, α(N)=6.50×10-5 10, α(O)=9.20E-6 13, α(P)=4.71E-7 7, α(N+)=7.47E-5 11
   6131.8 (45/2+)     1001.8M10.00614α=0.00614, α(K)=0.00520 8, α(L)=0.000734 11, α(M)=0.0001618 23, α(N)=3.77×10-5 6, α(O)=5.49E-6 8, α(P)=3.10E-7 5, α(N+)=4.35E-5 6
   6548.0 (47/2-)      416.1E10.00847α=0.00847, α(K)=0.00717 10, α(L)=0.001014 15, α(M)=0.000223 4, α(N)=5.17×10-5 8, α(O)=7.34E-6 11, α(P)=3.80E-7 6, α(N+)=5.94E-5 9
   6664.3 (49/2-)      116.3M11.85α=1.85, α(K)=1.550 22, α(L)=0.232 4, α(M)=0.0515 8, α(N)=0.01200 17, α(O)=0.001735 25, α(P)=9.56×10-5 14, α(N+)=0.01384 20
   7441.3 (53/2-)      777.0E20.00575α=0.00575, α(K)=0.00475 7, α(L)=0.000780 11, α(M)=0.0001750 25, α(N)=4.05×10-5 6, α(O)=5.67E-6 8, α(P)=2.69E-7 4, α(N+)=4.65E-5 7
   8016.0 (55/2+)      574.7E10.00413α=0.00413, α(K)=0.00350 5, α(L)=0.000486 7, α(M)=0.0001069 15, α(N)=2.48×10-5 4, α(O)=3.54E-6 5, α(P)=1.89E-7 3, α(N+)=2.85E-5 4
   8380.3 (57/2+)      364.3M10.0796α=0.0796, α(K)=0.0670 10, α(L)=0.00979 14, α(M)=0.00217 3, α(N)=0.000505 7, α(O)=7.32×10-5 11, α(P)=4.08E-6 6, α(N+)=0.000583 9
   9392.0 (61/2+)     1011.7E20.00328α=0.00328, α(K)=0.00274 4, α(L)=0.000419 6, α(M)=9.32×10-5 13, α(N)=2.16E-5 3, α(O)=3.07E-6 5, α(P)=1.563E-7 22, α(N+)=2.49E-5 4
  10286.6 (67/2-) 0.42 µs 5 
% IT = 100
   894.6(E3)0.00957α=0.00957, α(K)=0.00761 11, α(L)=0.001520 22, α(M)=0.000348 5, α(N)=8.05×10-5 12, α(O)=1.107E-5 16, α(P)=4.66E-7 7, α(N+)=9.21E-5 13

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
    801.52(9/2-)   Configuration=νh9/2 (1997Co24).
   1140.35(13/2+) 10 ns 3  Configuration=(νf7/2~#3-)+νi13/2 (1997Co24).
   2032.4(1/2,3/2)   Jπ(level): The β transition from (1/2+) parent state is possibly allowed.
   2621.5(1/2+,3/2+)   Jπ(level): The β transition from (1/2+) parent state is possibly allowed.
   2966.1(1/2+,3/2+)   Jπ(level): The β transition from (1/2+) parent state is possibly allowed.
   3051.1(1/2+,3/2+)   Jπ(level): The β transition from (1/2+) parent state is possibly allowed.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   1495.50    354.2E(γ): γ not reported by 1997Co24 in 151Er IT decay (0.58~s) study. 1997Co24 state that some of the γ-transition placements by 1990Ak01 are in conflict with their work. Apparently, the details of work by 1997Co24 are given only in a thesis by R. Collatz, KFA Julich (1994) (reference 8 in 1997Co24). This thesis is not available to the evaluator.
    692.8E(γ): γ not reported by 1997Co24 in 151Er IT decay (0.58~s) study. 1997Co24 state that some of the γ-transition placements by 1990Ak01 are in conflict with their work. Apparently, the details of work by 1997Co24 are given only in a thesis by R. Collatz, KFA Julich (1994) (reference 8 in 1997Co24). This thesis is not available to the evaluator.
   1548.55    408.3E(γ): γ not reported by 1997Co24 in 151Er IT decay (0.58~s) study. 1997Co24 state that some of the γ-transition placements by 1990Ak01 are in conflict with their work. Apparently, the details of work by 1997Co24 are given only in a thesis by R. Collatz, KFA Julich (1994) (reference 8 in 1997Co24). This thesis is not available to the evaluator.
   2075.25    353.8I(γ): 88 in 151Er IT decay (0.58~s)
    935.0I(γ): 44 in 151Er IT decay (0.58~s)
   2212.47    718.0E(γ): γ not reported by 1997Co24 in 151Er IT decay (0.58~s) study. 1997Co24 state that some of the γ-transition placements by 1990Ak01 are in conflict with their work. Apparently, the details of work by 1997Co24 are given only in a thesis by R. Collatz, KFA Julich (1994) (reference 8 in 1997Co24). This thesis is not available to the evaluator.
   1411.4E(γ): γ not reported by 1997Co24 in 151Er IT decay (0.58~s) study. 1997Co24 state that some of the γ-transition placements by 1990Ak01 are in conflict with their work. Apparently, the details of work by 1997Co24 are given only in a thesis by R. Collatz, KFA Julich (1994) (reference 8 in 1997Co24). This thesis is not available to the evaluator.
   2586.0     57.7M(γ): from fitting of observed ce(L) lines with theoretical subshell intensity ratios (1988Ba02)

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