ADOPTED LEVELS, GAMMAS for 92Sr

Author: Coral M. Baglin |  Citation: Nucl. Data Sheets 113, 2187 (2012) |  Cutoff date: 15-Sep-2012 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=1950 keV 10S(n)= 7286 keV 7S(p)= 12411 keV 9Q(α)= -5601 keV 5
Reference: 2012WA38

References:
  A  92Rb β- decay  B  93Rb β-n decay
  C  94Zr(6Li,8B)  D  208Pb(18O,FXNG)
  E  159Tb(36S,FXNG)  F  248Cm SF decay

General Comments:

For isotope shift data, see 1990Bu12.

For shell-model calculations see, e.g., 1973Wa36, 1978Ba70, 2002St06, 2003Hw01, 2009Rz01.

Q-value: Note: Current evaluation has used the following Q record 1951 9 7286 7 12410 9 -5601 4 2011AuZZ

Q-value: Q(β-),S(n),S(p),Q(α): from 2011AuZZ; values are 1946 9, 7294 6, 12411 9, -5600 14, respectively, from 2003Au03.










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCDEF 0+ 2.611 h 17 
% β- = 100
     
   814.98 3 ABCDEF 2+ 8 ps 3     814.98 3 
  100
E2
     0.0
0+
  1384.79 9 ABC    2+ 5.1 ps 24     569.8 1 
  1384.6 3 
  100 6 
   65 12 
(M1+E2)
E2
   814.98
     0.0
2+
0+
  1673.3 4    DEF (4)+      858.4 5 
  100
E2
   814.98
2+
  1778.33 12 AB     2(+) ≤ 5.0 ps    393.5 1 
   963.5 2 
  1778.3 10 
   83 4 
  100 9 
   24 13 
(M1)
(E2+M1)

  1384.79
   814.98
     0.0
2+
2+
0+
  2053.9 6 A      (2+)     1238.9 6 
  100
(E2+M1)
   814.98
2+
  2088.39 17 A      0(+)      703.6 3 
  1273.4 2 
   47 10 
  100 13 
(E2)
(E2)
  1384.79
   814.98
2+
2+
  2140.82 14 A      1+ 7.1 ps 25     756.0 2 
  1325.8 2 
   81 7 
  100 12 
M1(+E2)
E2+M1
  1384.79
   814.98
2+
2+
  2185.0 4    DEF (3-)      512.2
  1370.0 5 
 
 

D
  1673.3
   814.98
(4)+
2+
  2527.18 18 A      0+ 6 ps 4     386.1 3 
  1712.3 2 
    5.8 10 
  100 8 
(M1)
E2
  2140.82
   814.98
1+
2+
  2765.7 5    DEF (5-)      580.7 5 
  1092.3 5 
   58.0 17 
  100.0 22 

D
  2185.0
  1673.3
(3-)
(4)+
  2783.6 4 A          1399.0 6 
  1968.6 6 
   76 24 
  100 29 


  1384.79
   814.98
2+
2+
  2820.89 18 A      2(+),(1)     2006.5 5 
  2820.6 2 
   12 3 
  100 7 


   814.98
     0.0
2+
0+
  2849.6 6 A          1071.4
  1464.7 6 
   33
  100 33 


  1778.33
  1384.79
2(+)
2+
  2924.8 7     E      1251.4 5 
  100

  1673.3
(4)+
  3014.6 6     EF     1341.2 5 
  100

  1673.3
(4)+
  3128.8 7     EF (6+)     1455.4 5 
  100

  1673.3
(4)+
  3362.4 5     EF (5-)      597.2
  1177.4 5 
  1689.0 5 
 
  100 3 
   36.4 21 



  2765.7
  2185.0
  1673.3
(5-)
(3-)
(4)+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3558.5 7    DEF (6-,7-)      792.8 5 
  100

  2765.7
(5-)
  3786.0 7    DEF (6-,7-)      771.3 5 
  1020.6
  ≥24
  100 3 


  3014.6
  2765.7

(5-)
  4021.4 9     EF (6-,7-)      235.4 5 
   658.9 5 
   59.6 22 
  100 4 
(D)

  3786.0
  3362.4
(6-,7-)
(5-)
  4637.8 5 A      1     1816.7 5 
  2860.3 21 
  3823.6 16 
  4637.7 9 
   27 6 
   12 12 
   16 10 
  100 13 




  2820.89
  1778.33
   814.98
     0.0
2(+),(1)
2(+)
2+
0+
  4928.5 9     EF (8-,9-)     1142.5 5 
  1799.6 5 ?
  100 4 
   31 3 


  3786.0
  3128.8
(6-,7-)
(6+)
  5053.8 4 A      1     2232.0 5 
  2913.2 6 
  3670.8 12 
  4240.4 16 
  100 25 
   92 25 
   54 25 
   42 25 




  2820.89
  2140.82
  1384.79
   814.98
2(+),(1)
1+
2+
2+
  5056.7 10     E      1035.3 5 
  100

  4021.4
(6-,7-)
  5727.2 10     E       798.7 5 
  100

  4928.5
(8-,9-)
  5738.4 9 A      1     4922.6 11 
  5739.4 14 
  100 18 
   64 24 


   814.98
     0.0
2+
0+
  5893.6 7 A      1(-)     3110.0 7 
  4508.2 12 
  100 30 
   63 17 


  2783.6
  1384.79

2+
  5901.1 10 A      1(-)     5086.2 12 
  5900.6 14 
   93 43 
  100 29 


   814.98
     0.0
2+
0+
  6003.5 7 A      1-     5188.1 8 
  6004.1 15 
  100 17 
   24 8 


   814.98
     0.0
2+
0+
  6030.0 8 A      1-     3502.0 16 
  5215.1 10 
  6030.0 15 
   33 21 
  100 36 
   73 21 



  2527.18
   814.98
     0.0
0+
2+
0+
  6116.1 10 A      1-     5301.7 13 
  6114.8 15 
  100 32 
  100 32 


   814.98
     0.0
2+
0+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  6527.7 12 ?    E       800.5 5 ?
  100

  5727.2

  6949.1 7 ?A      0-,1-     1895.1 6 ?
  4809.3 15 ?
   53 16 
  100 50 


  5053.8
  2140.82
1
1+
  7363.0 8 A      1-     4835.9 11 
  5584.2 11 
   62 16 
  100 20 


  2527.18
  1778.33
0+
2(+)

E(level): From least-squares fit to Eγ, allowing 1 keV uncertainty in Eγ data (3 lines) for which the authors do not state the uncertainty.

Jπ(level): Values given without comment are tentative values from 159Tb(36S,Fxnγ), consistent with DCO measurements but suggested primarily by analogy with 90Sr which exhibits a very similar level sequence.

T1/2(level): From βγγ(t) in Rb β- decay, except as noted.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - π=+ SEQUENCE.
     0.0 0+ 2.611 h 17 
% β- = 100
     
   814.98 3  2+ 8 ps 3     814.98 3 
  100
E2
     0.0
0+
  1673.3 4  (4)+      858.4 5 
  100
E2
   814.98
2+

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Additional Data
   814.98 2+ 8 ps 3     814.98 3 E2 B(E2)(W.u.)=8 3
  1384.79 2+ 5.1 ps 24     569.8 1 (M1+E2)+0.21 2B(E2)(W.u.)=1.9 10, B(M1)(W.u.)=0.014 7
2+ 5.1 ps 24    1384.6 3 E2 B(E2)(W.u.)=0.35 18
  1778.33 2(+) ≤ 5.0 ps    393.5 1 (M1) B(M1)(W.u.)≥0.029
2(+) ≤ 5.0 ps    963.5 2 (E2+M1)+1.7 +13-15B(E2)(W.u.)≥1.2
  2140.82 1+ 7.1 ps 25     756.0 2 M1(+E2)-0.09 3B(E2)(W.u.)=0.05 4, B(M1)(W.u.)=0.0032 12
1+ 7.1 ps 25    1325.8 2 E2+M1-0.27 5B(E2)(W.u.)=0.030 16, B(M1)(W.u.)=0.0007 3
  2527.18 0+ 6 ps 4     386.1 3 (M1) B(M1)(W.u.)=0.0035 25
0+ 6 ps 4    1712.3 2 E2 B(E2)(W.u.)=0.25 17

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 2.611 h 17 
% β- = 100
Δ<r2>(88Sr,92Sr)=0.512; uncertainty is 0.005 (statistical only), 0.021 (systematic included) (1990Bu12). For discussion of differential changes in Δ<r2>, see 1996Li25.
E(level): Δ<r2>(88Sr,92Sr)=0.512; uncertainty is 0.005 (statistical only), 0.021 (systematic included) (1990Bu12). For discussion of differential changes in Δ<r2>, see 1996Li25. From 208Pb(18O,Fxnγ). π=+ SEQUENCE.
   814.982+ 8 ps 3  E(level): From 208Pb(18O,Fxnγ). π=+ SEQUENCE.
  1673.3(4)+   E(level): From 208Pb(18O,Fxnγ). π=+ SEQUENCE.
  3558.5(6-,7-)   XREF: d(4579).
Jπ(level): From 248Cm SF decay, assuming that M2 transitions are unlikely if Eγ<1200, and that such a reaction predominantly populates yrast states in the secondary fission fragments so J is expected to rise with increasing level energy.
  3786.0(6-,7-)   Jπ(level): From 248Cm SF decay, assuming that M2 transitions are unlikely if Eγ<1200, and that such a reaction predominantly populates yrast states in the secondary fission fragments so J is expected to rise with increasing level energy.
  4021.4(6-,7-)   Jπ(level): From 248Cm SF decay, assuming that M2 transitions are unlikely if Eγ<1200, and that such a reaction predominantly populates yrast states in the secondary fission fragments so J is expected to rise with increasing level energy.
  4928.5(8-,9-)   Configuration involves (ν g7/2)#(ν h11/2) (2009Rz01).
E(level): Configuration involves (ν g7/2)#(ν h11/2) (2009Rz01).
Jπ(level): From 248Cm SF decay, assuming that M2 transitions are unlikely if Eγ<1200, and that such a reaction predominantly populates yrast states in the secondary fission fragments so J is expected to rise with increasing level energy.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   814.98   814.98M(γ): Q ΔJ=2 from γγ(θ) in 248Cm SF decay; not M2 from RUL.
  1384.79   569.8M(γ): D+Q from γγ(θ); adopted Δπ=no.
  1384.6M(γ): Q to 0+ in γγ(θ); not M2 from RUL.
  1673.3   858.4E(γ): From 159Tb(36S,Fxnγ).
M(γ): Q from DCO ratio in 159Tb(36S,Fxnγ); partial T1/2<5 ns because seen in prompt coin in 248Cm SF decay, so not M2 from RUL.
  1778.33   393.5M(γ): d from γγ(θ) in β- decay; Δπ=(no) from level scheme.
   963.5M(γ): Q(+D) with significant Q component (from γγ(θ)).
  2053.9  1238.9M(γ): Q(+D) from γγ(θ) with large Q component.
  2088.39   703.6M(γ): Q from γγ(θ); J=0 to Jπ=2+ transition.
  1273.4M(γ): Q from γγ(θ); J=0 to Jπ=2+ transition.
  2140.82   756.0M(γ): d(+Q) from γγ(θ); adopted Δπ=no.
  1325.8M(γ): D+Q from γγ(θ); not E1+M2 from RUL.
  2185.0   512.2E(γ): From 208Pb(18O,Fxnγ).
  1370.0E(γ): From 159Tb(36S,Fxnγ).
M(γ): d ΔJ=1 from γγ(θ) in 248Cm SF decay.
  2765.7   580.7E(γ): From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
  1092.3E(γ): From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
M(γ): from DCO ratio in 159Tb(36S,Fxnγ).
  2924.8  1251.4E(γ): From 159Tb(36S,Fxnγ).
  3014.6  1341.2E(γ): for contaminated line; Eγ=1342.3 in 248Cm SF decay.. From 159Tb(36S,Fxnγ).
  3128.8  1455.4E(γ): From 159Tb(36S,Fxnγ).
  3362.4   597.2E(γ): from 248Cm SF decay
  1177.4E(γ): From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
  1689.0E(γ): From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
  3558.5   792.8E(γ): for contaminated line; 792.8 from 248Cm SF decay also. γ is placed differently in 208Pb(18O,Fxnγ) (feeding a 3786 level), implying a 4579 level which has not been adopted by the evaluator.. From 159Tb(36S,Fxnγ).
  3786.0   771.3E(γ): for contaminated line. Other Eγ: 771.3 in 248Cm SF decay.. From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
  1020.6E(γ): From 208Pb(18O,Fxnγ).
I(γ): from 159Tb(36S,Fxnγ).
  4021.4   235.4E(γ): for contaminated line.. From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
M(γ): from DCO ratio in 159Tb(36S,Fxnγ).
   658.9E(γ): From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
E(level)E(gamma)Comments
  4928.5  1142.5E(γ): From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
  1799.6E(γ): From 159Tb(36S,Fxnγ).
I(γ): From 159Tb(36S,Fxnγ).
  5056.7  1035.3E(γ): From 159Tb(36S,Fxnγ).
  5727.2   798.7E(γ): From 159Tb(36S,Fxnγ).
  6527.7   800.5E(γ): From 159Tb(36S,Fxnγ).

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