ADOPTED LEVELS, GAMMAS for 92Kr

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-)=6003 keV 7S(n)= 5867 keV 4S(p)= 14951 keV 5Q(α)= -7310 keV 5
Reference: 2012WA38

References:
  A  92Br β- decay  B  93Br β-n decay
  C  235U(n,Fγ) E=THERMAL  D  248Cm SF decay
  E  Coulomb Excitation  F  252Cf SF decay

General Comments:

For isotope shift data, see 1995Ke04.

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

Q-value: Q(β-),S(n),S(p),Q(α): 5987 10, 5550 60, 14570 70, -7330 50, respectively, from 2003Au03.

Q-value: Q(β-n)=906 9 (2011AuZZ).










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0AB DEF 0+ 1.840 s 8 
% β- = 100
% β-n = 0.0332 25
     
   769.1 5 A  DEF 2+ ≈ 5.0 ps    769.2
  100
E2
     0.0
0+
  1356.4 9 A           587.4
  100

   769.1
2+
  1446.3 6 A  D F (1,2+)      677.5
  1446.6
   55
  100
D

   769.1
     0.0
2+
0+
  1804.0 10 A  D F 4+      358?
  1035.3
   ≤1.8
  100

E2
  1446.3
   769.1
(1,2+)
2+
  1985.0 13    D F (4+)      181.1
  100

  1804.0
4+
  1994.2 13 ?A             
  2019.4 8 A           573.0
  1250.0
   62
  100


  1446.3
   769.1
(1,2+)
2+
  2046.6 12 A          1277.5
  100

   769.1
2+
  2066.2 10    D F 4(+)     1296.7
  100
Q
   769.1
2+
  2077.4 9 A           631.0
  1308.5
    6.4
  100


  1446.3
   769.1
(1,2+)
2+
  2153.2 8 A      (1,2+)     1384.0
  2153.4
  100
   12


   769.1
     0.0
2+
0+
  2164.3 8 A           717.8
  1395.2
   80
  100


  1446.3
   769.1
(1,2+)
2+
  2350.8 7 A      (1,2+)      994.4
  1581.8
  2350.6
   20
   73
  100



  1356.4
   769.1
     0.0

2+
0+
  2471.7 9 A          1026
  1702.0
    6.7
  100


  1446.3
   769.1
(1,2+)
2+
  2492.0 12    D F (6+)      507.0
   688.1
 
 


  1985.0
  1804.0
(4+)
4+
  2587.2 8 A      (1,2+)      593?
  1818.5
  2586.7
 
  100
   17



  1994.2
   769.1
     0.0

2+
0+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  2653.3 14    D F (6+)      849.3
  100

  1804.0
4+
  2684.1 14      F      880.1
  100

  1804.0
4+
  2699.0 14      F      895.0
  100

  1804.0
4+
  2820.9 10 A           801.0
  1375.1
   20
  100


  2019.4
  1446.3

(1,2+)
  2836.0 13    D F     1032.1
  100

  1804.0
4+
  2875.3 9 A          1429.0
  2106.2
    5
  100


  1446.3
   769.1
(1,2+)
2+
  3036.1 12    D F (6+)     1232.2
  100

  1804.0
4+
  3073.7 14      F     1269.7
  100

  1804.0
4+
  3086.6 10 A           922.0
  1640.5
   25
  100


  2164.3
  1446.3

(1,2+)
  3114.9 9 A          1668.2
  2346.1
    7.0
  100


  1446.3
   769.1
(1,2+)
2+
  3172.4 11    D F (6+)     1106.0
  1368.7
 
 


  2066.2
  1804.0
4(+)
4+
  3178.6 11    D F (6+)     1112.3
  1374.5
 
 


  2066.2
  1804.0
4(+)
4+
  3286.0 12 A          2516.9
  100

   769.1
2+
  3595.3 13    D F      759.4
  100

  2836.0

  3627.8 11    D F (8+)       32.6
   448.9
   455.3
   591.8
  1135.9
 
 
 
 
 





  3595.3
  3178.6
  3172.4
  3036.1
  2492.0

(6+)
(6+)
(6+)
(6+)
  3846.1 13    D F (8+)      810.0
  1192.7
 
 


  3036.1
  2653.3
(6+)
(6+)
  4054.5 9 A          2607.5
  3286.0
  100
  100


  1446.3
   769.1
(1,2+)
2+
  4124.0 16      F     1288.0
  100

  2836.0

E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  4175.8 13    D F (10+)      329.8
   548.0
 
 


  3846.1
  3627.8
(8+)
(8+)
  4185.1 16      F     1149.0
  100

  3036.1
(6+)
  4394.6 16      F     1358.5
  100

  3036.1
(6+)
  4482.5 7 A      (1,2+)     3036.0
  3713.0
  4483.0
   33
   33
  100



  1446.3
   769.1
     0.0
(1,2+)
2+
0+
  4511.4 12 A          3742.3
  100

   769.1
2+
  4980.3 17    D F (12+)      804.5
  100

  4175.8
(10+)
  5011.4 12 A          3565.0
  100

  1446.3
(1,2+)
  5078.8 8 A      (1,2+)     3633.0
  5078.0
   50
  100


  1446.3
     0.0
(1,2+)
0+

E(level): From least-squares fit to Eγ allowing 1 keV uncertainty in all Eγ data. Uncertainties are provided by authors for no Eγ data.

Jπ(level): Values given without further comment are those proposed by 2011Li34 in 252Cf SF decay based largely on regional systematics.

M(γ): From γγ(θ) in 248Cm SF decay.

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Additional Gamma Data:











E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityAdditional Data
   769.1 2+ ≈ 5.0 ps    769.2E2B(E2)(W.u.)≈17 (<a href= "http://www.nndc.bnl.gov/nsr/nsrlink.jsp?2009MuZW ">2009MuZW</a>)

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 1.840 s 8 
% β- = 100
% β-n = 0.0332 25
Δ<r2>(92Kr-86Kr)=0.751; uncertainty is 0.005 (statistical only), 0.022 (systematic included), 0.139 (including uncertainties arising from evaluation of isotope shifts) (1995Ke04). For discussion of differential changes in Δ<r2>, see 1996Li25.
E(level): Δ<r2>(92Kr-86Kr)=0.751; uncertainty is 0.005 (statistical only), 0.022 (systematic included), 0.139 (including uncertainties arising from evaluation of isotope shifts) (1995Ke04). For discussion of differential changes in Δ<r2>, see 1996Li25.
  1356.4   E(level): From 252Cf SF decay.
Jπ(level): In heavier even-even n=56 isotones, the lowest-energy excited 0+ levels lie at 1682, 1582 and 1130, respectively, in Sr, Zr and Ru; 3- levels lie at 1926, 1897, 2018 and 2167, respectively, in Sr, Zr, Mo and Ru isotones. Among the 92Kr levels with unknown Jπ, the energy of the observed 1356 level most closely matches that expected for the 0+ state. The energies of the 1985, 1994, 2019, 2047, 2077 and 2164 levels, none of which has a known γ feeding a 0+ level, make them candidates for the expected 3- state.
  1446.3(1,2+)   Jπ(level): Gammas to both 0+ and (2+) levels imply Jπ=(1,2+).
  1985.0(4+)   E(level): From 252Cf SF decay.
Jπ(level): In heavier even-even n=56 isotones, the lowest-energy excited 0+ levels lie at 1682, 1582 and 1130, respectively, in Sr, Zr and Ru; 3- levels lie at 1926, 1897, 2018 and 2167, respectively, in Sr, Zr, Mo and Ru isotones. Among the 92Kr levels with unknown Jπ, the energy of the observed 1356 level most closely matches that expected for the 0+ state. The energies of the 1985, 1994, 2019, 2047, 2077 and 2164 levels, none of which has a known γ feeding a 0+ level, make them candidates for the expected 3- state.
  1994.2   E(level): From 252Cf SF decay.
Jπ(level): In heavier even-even n=56 isotones, the lowest-energy excited 0+ levels lie at 1682, 1582 and 1130, respectively, in Sr, Zr and Ru; 3- levels lie at 1926, 1897, 2018 and 2167, respectively, in Sr, Zr, Mo and Ru isotones. Among the 92Kr levels with unknown Jπ, the energy of the observed 1356 level most closely matches that expected for the 0+ state. The energies of the 1985, 1994, 2019, 2047, 2077 and 2164 levels, none of which has a known γ feeding a 0+ level, make them candidates for the expected 3- state.
  2019.4   E(level): From 252Cf SF decay.
Jπ(level): In heavier even-even n=56 isotones, the lowest-energy excited 0+ levels lie at 1682, 1582 and 1130, respectively, in Sr, Zr and Ru; 3- levels lie at 1926, 1897, 2018 and 2167, respectively, in Sr, Zr, Mo and Ru isotones. Among the 92Kr levels with unknown Jπ, the energy of the observed 1356 level most closely matches that expected for the 0+ state. The energies of the 1985, 1994, 2019, 2047, 2077 and 2164 levels, none of which has a known γ feeding a 0+ level, make them candidates for the expected 3- state.
  2046.6   E(level): From 252Cf SF decay.
Jπ(level): In heavier even-even n=56 isotones, the lowest-energy excited 0+ levels lie at 1682, 1582 and 1130, respectively, in Sr, Zr and Ru; 3- levels lie at 1926, 1897, 2018 and 2167, respectively, in Sr, Zr, Mo and Ru isotones. Among the 92Kr levels with unknown Jπ, the energy of the observed 1356 level most closely matches that expected for the 0+ state. The energies of the 1985, 1994, 2019, 2047, 2077 and 2164 levels, none of which has a known γ feeding a 0+ level, make them candidates for the expected 3- state.
  2077.4   E(level): From 252Cf SF decay.
Jπ(level): In heavier even-even n=56 isotones, the lowest-energy excited 0+ levels lie at 1682, 1582 and 1130, respectively, in Sr, Zr and Ru; 3- levels lie at 1926, 1897, 2018 and 2167, respectively, in Sr, Zr, Mo and Ru isotones. Among the 92Kr levels with unknown Jπ, the energy of the observed 1356 level most closely matches that expected for the 0+ state. The energies of the 1985, 1994, 2019, 2047, 2077 and 2164 levels, none of which has a known γ feeding a 0+ level, make them candidates for the expected 3- state.
  2153.2(1,2+)   Jπ(level): Gammas to both 0+ and (2+) levels imply Jπ=(1,2+).
  2164.3   E(level): From 252Cf SF decay.
Jπ(level): In heavier even-even n=56 isotones, the lowest-energy excited 0+ levels lie at 1682, 1582 and 1130, respectively, in Sr, Zr and Ru; 3- levels lie at 1926, 1897, 2018 and 2167, respectively, in Sr, Zr, Mo and Ru isotones. Among the 92Kr levels with unknown Jπ, the energy of the observed 1356 level most closely matches that expected for the 0+ state. The energies of the 1985, 1994, 2019, 2047, 2077 and 2164 levels, none of which has a known γ feeding a 0+ level, make them candidates for the expected 3- state.
  2350.8(1,2+)   Jπ(level): Gammas to both 0+ and (2+) levels imply Jπ=(1,2+).
  2587.2(1,2+)   Jπ(level): Gammas to both 0+ and (2+) levels imply Jπ=(1,2+).
  4482.5(1,2+)   Jπ(level): Gammas to both 0+ and (2+) levels imply Jπ=(1,2+).
  5078.8(1,2+)   Jπ(level): Gammas to both 0+ and (2+) levels imply Jπ=(1,2+).

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Additional Gamma Comments:

E(level)E(gamma)Comments
   769.1   769.2M(γ): Q from 248Cm SF decay; Coulomb excited transition.
  1804.0  1035.3M(γ): from γγ(θ) and linear polarization in 248Cm SF decay.
  1985.0   181.1E(γ): From 248Cm SF decay.
  2066.2  1296.7E(γ): From 248Cm SF decay.
  2492.0   507.0E(γ): From 248Cm SF decay.
   688.1E(γ): From 248Cm SF decay.
  2653.3   849.3E(γ): From 252Cf SF decay.
  2684.1   880.1E(γ): From 252Cf SF decay.
  2699.0   895.0E(γ): From 252Cf SF decay.
  2836.0  1032.1E(γ): From 248Cm SF decay.
  3036.1  1232.2E(γ): From 248Cm SF decay.
  3172.4  1106.0E(γ): From 248Cm SF decay.
  1368.7E(γ): From 248Cm SF decay.
  3178.6  1112.3E(γ): From 248Cm SF decay.
  1374.5E(γ): From 252Cf SF decay.
  3595.3   759.4E(γ): From 248Cm SF decay.
  3627.8    32.6E(γ): from level energy difference; transition shown in level scheme in fig. 4 of 2000Rz02, but energy not given.. From 248Cm SF decay.
   455.3E(γ): From 248Cm SF decay.
   591.8E(γ): From 248Cm SF decay.
  1135.9E(γ): From 248Cm SF decay.
  3846.1   810.0E(γ): From 248Cm SF decay.
  1192.7E(γ): From 248Cm SF decay.
  4124.0  1288.0E(γ): From 252Cf SF decay.
  4175.8   329.8E(γ): From 248Cm SF decay.
   548.0E(γ): From 248Cm SF decay.
E(level)E(gamma)Comments
  4185.1  1149.0E(γ): From 252Cf SF decay.
  4394.6  1358.5E(γ): From 252Cf SF decay.
  4980.3   804.5E(γ): From 248Cm SF decay.

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