ADOPTED LEVELS, GAMMAS for 91Sr

Author: Coral M. Baglin |  Citation: Nucl. Data Sheets 114, 1293 (2013) |  Cutoff date: 1-Sep-2013 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2699 keV 5S(n)= 5775 keV 6S(p)= 11577 keV 9Q(α)= -5368 keV 6
Reference: 2012WA38

References:
  A  91Rb β- decay  B  173Yb(24Mg,FXNG)
  C  159Tb(36S,Fγ) 

General Comments:

Theory (partial list):

Nuclear structure: 1978Ba70, 1973Wa36 (shell-model calculations).

For recent isotope shift data see 1990Bu12.

Other reactions:

90Sr(n,γ) E=thermal (2001Na43): measured capture σ (=10.1 mb 13) and resonance integral (=104 mb 16) using an activation method.

Q-value: Q(βn)=-5229 6 (2012Wa38).










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0ABC 5/2+ 9.65 h 6 
% β- = 100
     
    93.628 4 A   (3/2)+ 89.4 ns 16      93.628 4 
  100
E2(+M1)
     0
5/2+
   439.159 19 A   (+)      345.52 3 
   439.15 3 
  100 5 
   25.2 12 
(M1,E2)

    93.628
     0
(3/2)+
5/2+
   993.5 10  BC (9/2+)      993.2 1 
  100

     0
5/2+
  1042.034 25 A   (+)      602.85 3 
   948.49 5 
  1041.99 5 
  100 5 
   41.3 23 
   77 4 
(M1,E2)
(M1,E2)
(M1,E2)
   439.159
    93.628
     0
(+)
(3/2)+
5/2+
  1230.84 5 A   (+)     1137.24 5 
  1230.64 15 
  100 5 
    7.6 7 
(M1,E2)

    93.628
     0
(3/2)+
5/2+
  1367.76 7 A       1274.05 18 
  1367.76 8 
   33 4 
  100 7 


    93.628
     0
(3/2)+
5/2+
  1482.12 10 A       1388.13 24 
  1482.17 11 
   15.1 21 
  100 7 


    93.628
     0
(3/2)+
5/2+
  1740.27 8 A        509.6 5 
  1646.51 23 
  1740.25 10 
   12.1 19 
   18.3 24 
  100 7 



  1230.84
    93.628
     0
(+)
(3/2)+
5/2+
  1917.09 12 A        875.0 3 
  1823.3 4 
  1917.11 15 
   14.2 22 
   47 8 
  100 8 



  1042.034
    93.628
     0
(+)
(3/2)+
5/2+
  1942.91 8 A   (1/2+,3/2,5/2)     1849.27 9 
  1942.81 17 
  100 5 
   12.0 12 


    93.628
     0
(3/2)+
5/2+
  2064.66 6 A   1/2(+),3/2,5/2     1023.20 12 
  1625.4 3 
  1970.99 10 
  2064.69 14 
    6.6 6 
   10.7 7 
  100 5 
   11.7 9 




  1042.034
   439.159
    93.628
     0
(+)
(+)
(3/2)+
5/2+
  2077.5 15  BC (11/2-)     1083.6 1 
  100
D
   993.5
(9/2+)
  2159.08 22 A       1719.9 3 
  100

   439.159
(+)
  2236.95 12 A       1006.3 4 
  2143.22 14 
  2236.9 5 
   14 4 
  100 8 
   21 5 



  1230.84
    93.628
     0
(+)
(3/2)+
5/2+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2657.89 6 A   1/2(-) TO 5/2(-)      593.23 3 
   917.59 22 
  1615.86 9 
  2218.2 3 
  2564.19 14 
   10.3 5 
    1.48 24 
   19.6 11 
    2.2 4 
  100 5 





  2064.66
  1740.27
  1042.034
   439.159
    93.628
1/2(+),3/2,5/2

(+)
(+)
(3/2)+
  3116.3 17  BC (15/2-)     1038.3 1 
  100
Q
  2077.5
(11/2-)
  3304.4 17  BC (15/2-)     1225.7 5 
  100

  2077.5
(11/2-)
  3364.68 11 A   1/2,3/2,5/2     1205.6 3 
  1299.9 3 
  1624.8 5 
  2322.34 21 
  2925.72 18 
  3270.9 3 
    7.6 16 
   10.7 16 
   32.7 22 
   30 3 
  100 7 
   29 4 






  2159.08
  2064.66
  1740.27
  1042.034
   439.159
    93.628

1/2(+),3/2,5/2

(+)
(+)
(3/2)+
  3395.5 4 ?A   (1/2+,3/2,5/2)     3302.2 10 ?
  3395.4 4 ?
   43 17 
  100 18 


    93.628
     0
(3/2)+
5/2+
  3446.58 18 A   1/2(+),3/2,5/2     1503.0 7 
  3007.6 5 
  3353.1 6 
  3446.50 20 
    6.1 23 
   18 3 
   14 5 
  100 7 




  1942.91
   439.159
    93.628
     0
(1/2+,3/2,5/2)
(+)
(3/2)+
5/2+
  3576.0 17  BC (17/2-)      271.4 5 
   459.5 1 
   21 3 
  100 7 


  3304.4
  3116.3
(15/2-)
(15/2-)
  3643.81 21 ?A   (1/2+,3/2,5/2)     2161.8 6 ?
  3643.75 23 ?
   15 5 
  100 10 


  1482.12
     0

5/2+
  3693.23 12 A   1/2(-) TO 5/2(-)     1034.9 6 
  1628.49 14 
  1953.0 5 
  3599.67 19 
    1.3 5 
    8.7 6 
    0.7 3 
  100 5 




  2657.89
  2064.66
  1740.27
    93.628
1/2(-) TO 5/2(-)
1/2(+),3/2,5/2

(3/2)+
  3736.80 14 A   1/2(+),3/2,5/2     2254.6 4 
  2505.95 14 
  3736.5 4 
    8.8 21 
  100 6 
   40 10 



  1482.12
  1230.84
     0

(+)
5/2+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3776.62 17 A   1/2,3/2,5/2     1712.0 4 
  1859.56 25 
  2036.1 3 
  3337.8 5 
  3682.9 7 
   56 11 
   41 8 
  100 14 
   60 16 
   22 12 





  2064.66
  1917.09
  1740.27
   439.159
    93.628
1/2(+),3/2,5/2


(+)
(3/2)+
  3831.08 14 ?A   (1/2,3/2,5/2)     1174.1 5 ?
  1594.15 17 ?
  1766.17 18 ?
   24 7 
  100 9 
   40 10 



  2657.89
  2236.95
  2064.66
1/2(-) TO 5/2(-)

1/2(+),3/2,5/2
  3839.4 3 ?A   (1/2+,3/2,5/2)     3745.9 5 ?
  3839.3 3 ?
   33 8 
  100 10 


    93.628
     0
(3/2)+
5/2+
  3938.42 20 ?A   (1/2+,3/2,5/2)     1874.4 4 ?
  3844.33 25 ?
  3938.7 5 ?
   11 5 
  100 8 
   18 4 



  2064.66
    93.628
     0
1/2(+),3/2,5/2
(3/2)+
5/2+
  3946.3 18  BC (19/2-)      370.2 3 
   829.7 3 
  100 6 
   94 11 
D

  3576.0
  3116.3
(17/2-)
(15/2-)
  4043.33 16 A   3/2(-),5/2(-)     3604.3 6 
  3949.56 23 
  4043.26 22 
   50 23 
   87 7 
  100 7 



   439.159
    93.628
     0
(+)
(3/2)+
5/2+
  4078.30 10 A   3/2(-),5/2(-)     1841.1 3 
  2013.5 3 
  2847.39 22 
  3639.14 22 
  3984.7 3 
  4078.25 19 
    3.1 11 
    6.5 10 
   16.0 17 
   29.8 25 
   10.2 11 
  100 5 






  2236.95
  2064.66
  1230.84
   439.159
    93.628
     0

1/2(+),3/2,5/2
(+)
(+)
(3/2)+
5/2+
  4157.55 19 A   3/2(-),5/2(-)     2789.6 4 
  4063.9 7 
  4157.48 22 
   70 7 
    6 4 
  100 7 



  1367.76
    93.628
     0

(3/2)+
5/2+
  4189.39 16 A   3/2(-),5/2(-)     2958.6 6 
  3147.30 24 
  4095.7 3 
  4189.2 3 
   20 6 
  100 10 
   37 5 
   36 4 




  1230.84
  1042.034
    93.628
     0
(+)
(+)
(3/2)+
5/2+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  4240.1 4 ?A   (1/2,3/2,5/2)     2872.5 6 ?
  3800.7 5 ?
  100 30 
   80 18 


  1367.76
   439.159

(+)
  4249.1 3 ?A   (1/2+,3/2,5/2)     4249.0 3 ?
  100

     0
5/2+
  4253.8 3 ?A   (1/2+,3/2,5/2)     4253.7 3 ?
  100

     0
5/2+
  4265.50 16 A   3/2(-),5/2(-)     2783.3 4 
  2897.6 5 
  4171.7 3 
  4265.45 21 
   23 4 
   14 3 
   19.5 21 
  100 6 




  1482.12
  1367.76
    93.628
     0


(3/2)+
5/2+
  4278.1 21  BC (21/2+)      331.8 3 
  100
D
  3946.3
(19/2-)
  4327.73 19 A   1/2(-) TO 5/2(-)     2263.1 3 
  3284.7 8 
  3888.4 4 
  4234.1 3 
   54 11 
   57 17 
  100 13 
   77 8 




  2064.66
  1042.034
   439.159
    93.628
1/2(+),3/2,5/2
(+)
(+)
(3/2)+
  4358.37 16 A   (3/2-,5/2-)      912.8 4 ?
   993.69 13 
  2990.6 5 
  4357.9 7 
   24 8 
  100 9 
   67 17 
   18 6 




  3446.58
  3364.68
  1367.76
     0
1/2(+),3/2,5/2
1/2,3/2,5/2

5/2+
  4391.0 4 ?A   (1/2+,3/2,5/2)     2448.5 7 ?
  4297.1 4 ?
  4391.3 9 ?
  100 32 
   77 11 
   36 11 



  1942.91
    93.628
     0
(1/2+,3/2,5/2)
(3/2)+
5/2+
  4453.0 3 ?A   (1/2+,3/2,5/2)     1794.5 6 ?
  3410.7 8 ?
  4453.1 4 ?
   86 26 
   56 37 
  100 12 



  2657.89
  1042.034
     0
1/2(-) TO 5/2(-)
(+)
5/2+
  4461  C     1346.4 3 
  100

  3116.3
(15/2-)
  4625.8 19  BC     1509.1 5 
  100

  3116.3
(15/2-)
  4680?  C     1564.4 5 
  100

  3116.3
(15/2-)
  4689  C     1574.2 5 
  100

  3116.3
(15/2-)
  4793.1 3 A   (3/2-,5/2-)      749.73 25 ?
  1149.7 7 ?
  4699.3 7 ?
  100 18 
   61 24 
   15 9 



  4043.33
  3643.81
    93.628
3/2(-),5/2(-)
(1/2+,3/2,5/2)
(3/2)+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  4830.6 19  BC     1713.0 5 
  100

  3116.3
(15/2-)
  5003.3 20  BC      174.3 5 
   313.1 5 
   377.5 5 
 
   26 4 
  100 29 


D
  4830.6
  4689
  4625.8



  5249  C      246.4 3 
  100

  5003.3

  5365?  C      685.7 5 ?
  100

  4680

  5742  C      493.1 5 
  100
D
  5249

E(level): From least-squares fit to Eγ, omitting the 1024γ and including tentatively-placed gammas only when there is no definitely-placed γ deexciting the same level. An uncertainty of 1 keV was assigned to Eγ data for which the authors did not state an uncertainty.

Jπ(level): Values given without comment are from 173Yb(24Mg,Fxnγ). Supported by deduced band structure and multipolarities from DCO ratios

Back to top

Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - ν(1d5/23) STATES (2002St06).
     0 5/2+ 9.65 h 6 
% β- = 100
     
   993.5 10  (9/2+)      993.2 1 
  100

     0
5/2+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - π=- INTRUDER STATES (2013Hw01).
  3116.3 17  (15/2-)        
  3576.0 17  (17/2-)      271.4 5 
   459.5 1 
   21 3 
  100 7 


  3304.4
  3116.3
(15/2-)
(15/2-)
  3946.3 18  (19/2-)      370.2 3 
   829.7 3 
  100 6 
   94 11 
D

  3576.0
  3116.3
(17/2-)
(15/2-)

Back to top

Additional Gamma Data:















E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
    93.628 (3/2)+ 89.4 ns 16      93.628 4 E2(+M1)3.3 GT1.25B(E2)(W.u.)>14, B(M1)(W.u.)<1.2E-5, α=1.25 5
   439.159 (+)      345.52 3 (M1,E2) 0.009α=0.009 3

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     05/2+ 9.65 h 6 
% β- = 100
Q=+0.045 11, μ=-0.885 2
Δ<r2>(91Sr-88Sr)=0.374, uncertainty 0.003 (statistical), 0.016 (systematic) (1990Bu12).
E(level): Δ<r2>(91Sr-88Sr)=0.374, uncertainty 0.003 (statistical), 0.016 (systematic) (1990Bu12). ν(1d5/23) STATES (2002St06).
   993.5(9/2+)   E(level): ν(1d5/23) STATES (2002St06).
  3116.3(15/2-)   E(level): From 159Tb(36S,Fγ). π=- INTRUDER STATES (2013Hw01).
  3576.0(17/2-)   E(level): From 159Tb(36S,Fγ). π=- INTRUDER STATES (2013Hw01).
  3946.3(19/2-)   E(level): From 159Tb(36S,Fγ). π=- INTRUDER STATES (2013Hw01).

Back to top

Additional Gamma Comments:

E(level)E(gamma)Comments
   993.5   993.2E(γ): Transition tentatively placed by the evaluator.
  2077.5  1083.6E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
M(γ): From 159Tb(36S,Fγ).
  3116.3  1038.3E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
M(γ): From 159Tb(36S,Fγ).
  3304.4  1225.7E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
  3576.0   271.4E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).. Other Iγ: 41 8 from 173Yb(24Mg,Fxnγ).
   459.5E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
  3946.3   370.2E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
M(γ): From 159Tb(36S,Fγ).
   829.7E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).. Other Iγ: 75 14 from (24Mg,Fxnγ).
  4278.1   331.8E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
M(γ): d ΔJ=1 from (36S,Fγ); possibly E1, analogous to 89Sr (2013Hw01). However, 2002St06 suggested M1 instead.. From 159Tb(36S,Fγ).
  4358.37   912.8E(γ): Transition tentatively placed by the evaluator.
  4461  1346.4E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
  4625.8  1509.1E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
  4680  1564.4E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
  4689  1574.2E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
  4830.6  1713.0E(γ): From 159Tb(36S,Fγ).. Other Eγ: 1714.4 from (24Mg,Fxnγ).
I(γ): From 159Tb(36S,Fγ).
  5003.3   174.3E(γ): Eγ: from 159Tb(36S,Fγ). Other Eγ (Iγ): 172.9 (<206) from (24Mg,Fxnγ).
I(γ): Eγ: from 159Tb(36S,Fγ). Other Eγ (Iγ): 172.9 (<206) from (24Mg,Fxnγ).
   313.1E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
   377.5E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
M(γ): From 159Tb(36S,Fγ).
  5249   246.4E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
  5365   685.7E(γ): From 159Tb(36S,Fγ).. For contaminated line.
I(γ): From 159Tb(36S,Fγ).
  5742   493.1E(γ): From 159Tb(36S,Fγ).
I(γ): From 159Tb(36S,Fγ).
M(γ): From 159Tb(36S,Fγ).

Back to top