ADOPTED LEVELS, GAMMAS for 71Se

Authors: Khalifeh Abusaleem, Balraj Singh |  Citation: Nucl. Data Sheets 112, 133 (2011) |  Cutoff date: 30-Nov-2010 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-6644 keV 6S(n)= 9288 keV 4S(p)= 6.09×103 keV 5Q(α)= -2913 keV 6
Reference: 2012WA38

References:
  A  71Br ε decay (21.4 S)  B  58Ni(16O,2pnγ)

General Comments:

1957Be43: identification and production of 71Se from Cu(14N,X) reaction, measured half-life.

1957At37: identification and production of 71Se from 70Ge(α,3n) reaction, measured half-life.

Mass measurements: 2002Li24, 2001Ha66, 1998Ch20

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

Q-value: Q(εp)=129 7, s(2n)=22986 35, s(2p)=10621 7 (2009AuZZ)

Q-value: Values in 2003Au03 are: Q(β-)=-6050 570, S(n)=9140 70, S(p)=6060 60, Q(α)=-2880 30, s(2n)=22960 50, s(2p)=10590 30, Q(εp)=160 30










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0AB (5/2-) 4.74 m 5 
% ε = 100
     
    48.79 5 AB (1/2-) 5.6 µs 7      48.78 5 
  100
E2
     0.0
(5/2-)
   171.52 6 A       122.72 5 
   171.6 1 
   83 6 
  100 8 


    48.79
     0.0
(1/2-)
(5/2-)
   260.48 10 AB (9/2+) 19.0 µs 5     260.5 1 
  100
[M2]
     0.0
(5/2-)
   282.44 8 AB (3/2-)      233.7 1 
   282.4 1 
  100 7 
   38 7 


    48.79
     0.0
(1/2-)
(5/2-)
   647.80 18 A       387.4 2 
   647.6 3 
  100 14 
   71 14 


   260.48
     0.0
(9/2+)
(5/2-)
   756.97 15 AB      474.6 2 
   756.9 2 
   52 8 
  100 10 


   282.44
     0.0
(3/2-)
(5/2-)
   796.4 4 ?A       796.4 4 ?
  100

     0.0
(5/2-)
  1040.6 7  B (7/2-) 1.0 ps 7     758.2
  1040.6
   81
  100
[E2]
[M1]
   282.44
     0.0
(3/2-)
(5/2-)
  1154.3 9  B (11/2+)      894
  100
(M1+E2)
   260.48
(9/2+)
  1298.1 9  B (13/2+) 0.90 ps 28    1037.5
  100
[E2]
   260.48
(9/2+)
  1493.5 9  B (13/2+)     1233.0
  100

   260.48
(9/2+)
  1639.3 9  B (13/2+)     1378.8
  100

   260.48
(9/2+)
  1680.5 13  B (11/2-) 1.7 ps 7     639.9
  100
[E2]
  1040.6
(7/2-)
  2326.9 10  B (17/2+)      687.6
   833.4
   80
  100


  1639.3
  1493.5
(13/2+)
(13/2+)
  2418.2 10  B (15/2+)     1120
  1264
   93
  100


  1298.1
  1154.3
(13/2+)
(11/2+)
  2448.8 12  B (17/2+) 0.53 ps 21    1150.5
  100
[E2]
  1298.1
(13/2+)
  2481.2 16  B (15/2-) 0.53 ps 28     800.7
  100
[E2]
  1680.5
(11/2-)
  3236.7 15  B (21/2+)      909.8
  100

  2326.9
(17/2+)
  3426.6 19  B (19/2-) < 0.7 ps    945.4
  100
[E2]
  2481.2
(15/2-)
  3452.1 12  B (19/2+)     1003
  1034
   40
  100


  2448.8
  2418.2
(17/2+)
(15/2+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  3635.3 14  B (21/2+) 0.40 ps 28    1186.6
  100
[E2]
  2448.8
(17/2+)
  4300.9 18  B     1064.2
  100

  3236.7
(21/2+)
  4497.2 14  B (23/2+)      862
  1045
   62
  100


  3635.3
  3452.1
(21/2+)
(19/2+)
  4504.1 22  B     1077.5
  100

  3426.6
(19/2-)
  4834.5 17  B (25/2+)     1199.2
  100

  3635.3
(21/2+)
  6035.5 20  B     1201.0
  100

  4834.5
(25/2+)

E(level): From least-squares fit to Eγ’s, assuming 1 keV uncertainty when not stated

Jπ(level): For levels above 200 keV populated in 58Ni(16O,2pnγ), the assignments are from those proposed in 58Ni(16O,2pnγ), based on band structures, systematics and possible angular distribution measurements. In the opinion of the evaluators, strong arguments for these assignments are lacking as no details of data are available

T1/2(level): From DSAM in 58Ni(16O,2pnγ) (1984EbZZ)

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - νg9/2 band, α=+1/2.
   260.48 10  (9/2+) 19.0 µs 5       
  1298.1 9  (13/2+) 0.90 ps 28    1037.5
  100
[E2]
   260.48
(9/2+)
  2448.8 12  (17/2+) 0.53 ps 21    1150.5
  100
[E2]
  1298.1
(13/2+)
  3635.3 14  (21/2+) 0.40 ps 28    1186.6
  100
[E2]
  2448.8
(17/2+)
  4834.5 17  (25/2+)     1199.2
  100

  3635.3
(21/2+)
  6035.5 20      1201.0
  100

  4834.5
(25/2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - νg9/2 band, α=-1/2
  1154.3 9  (11/2+)        
  2418.2 10  (15/2+)     1120
  1264
   93
  100


  1298.1
  1154.3
(13/2+)
(11/2+)
  3452.1 12  (19/2+)     1003
  1034
   40
  100


  2448.8
  2418.2
(17/2+)
(15/2+)
  4497.2 14  (23/2+)      862
  1045
   62
  100


  3635.3
  3452.1
(21/2+)
(19/2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - γ cascade based on (13/2+)
  1493.5 9  (13/2+)        
  2326.9 10  (17/2+)      687.6
   833.4
   80
  100


  1639.3
  1493.5
(13/2+)
(13/2+)
  3236.7 15  (21/2+)      909.8
  100

  2326.9
(17/2+)
  4300.9 18      1064.2
  100

  3236.7
(21/2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - γ cascade based on 7/2-
  1040.6 7  (7/2-) 1.0 ps 7       
  1680.5 13  (11/2-) 1.7 ps 7     639.9
  100
[E2]
  1040.6
(7/2-)
  2481.2 16  (15/2-) 0.53 ps 28     800.7
  100
[E2]
  1680.5
(11/2-)
  3426.6 19  (19/2-) < 0.7 ps    945.4
  100
[E2]
  2481.2
(15/2-)
  4504.1 22      1077.5
  100

  3426.6
(19/2-)

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Additional Gamma Data:















E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
    48.79 (1/2-) 5.6 µs 7      48.78 5 E2 11.86B(E2)(W.u.)=1.63 21, α=11.86
   260.48 (9/2+) 19.0 µs 5     260.5 1 [M2] 0.0405B(M2)(W.u.)=0.0763 21, α=0.0405
  1040.6 (7/2-) 1.0 ps 7     758.2[E2] B(E2)(W.u.)=6.×101 4
(7/2-) 1.0 ps 7    1040.6[M1] B(M1)(W.u.)=0.011 8
  1154.3 (11/2+)      894(M1+E2)+1.6 3 
  1298.1 (13/2+) 0.90 ps 28    1037.5[E2] B(E2)(W.u.)=30 10
  1680.5 (11/2-) 1.7 ps 7     639.9[E2] B(E2)(W.u.)=1.8×102 8
  2448.8 (17/2+) 0.53 ps 21    1150.5[E2] B(E2)(W.u.)=30 12
  2481.2 (15/2-) 0.53 ps 28     800.7[E2] B(E2)(W.u.)=1.9×102 10
  3426.6 (19/2-) < 0.7 ps    945.4[E2] B(E2)(W.u.)>61
  3635.3 (21/2+) 0.40 ps 28    1186.6[E2] B(E2)(W.u.)=34 25

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
   260.48(9/2+) 19.0 µs 5  E(level): νg9/2 band, α=+1/2.
  1040.6(7/2-) 1.0 ps 7  E(level): γ cascade based on 7/2-.
  1154.3(11/2+)   E(level): νg9/2 band, α=-1/2.
  1298.1(13/2+) 0.90 ps 28  E(level): νg9/2 band, α=+1/2.
  1493.5(13/2+)   E(level): γ cascade based on (13/2+).
  1680.5(11/2-) 1.7 ps 7  E(level): γ cascade based on 7/2-.
  2326.9(17/2+)   E(level): γ cascade based on (13/2+).
  2418.2(15/2+)   E(level): νg9/2 band, α=-1/2.
  2448.8(17/2+) 0.53 ps 21  E(level): νg9/2 band, α=+1/2.
  2481.2(15/2-) 0.53 ps 28  E(level): γ cascade based on 7/2-.
  3236.7(21/2+)   E(level): γ cascade based on (13/2+).
  3426.6(19/2-) < 0.7 ps E(level): γ cascade based on 7/2-.
  3452.1(19/2+)   E(level): νg9/2 band, α=-1/2.
  3635.3(21/2+) 0.40 ps 28  E(level): νg9/2 band, α=+1/2.
  4300.9   E(level): γ cascade based on (13/2+).
  4497.2(23/2+)   E(level): νg9/2 band, α=-1/2.
  4504.1   E(level): γ cascade based on 7/2-.
  4834.5(25/2+)   E(level): νg9/2 band, α=+1/2.
  6035.5   E(level): νg9/2 band, α=+1/2.

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Additional Gamma Comments:

E(level)E(gamma)Comments
    48.79    48.78M(γ): from α(K)exp in 71Br ε decay

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