ADOPTED LEVELS, GAMMAS for 99Sr

Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 145, 25 (2017) |  Cutoff date: 1-Jul-2017 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=8128 keV 8S(n)= 4170 keV 6S(p)= 15441 keV 17Q(α)= -8778 keV 19
Reference: 2017WA10

References:
  A  99Rb β- decay  B  100Rb β-n decay
  C  7Li(98Rb,α2nγ) 

General Comments:

Other Reaction:

9Be(136Xe,X)(2012Qu01) 136Xe primary beam, E=120 MeV/nucleon, impinged on a 235 mg/cm2 Be target. Experiment performed at the NSCL Coupled Cyclotron Facility. Measured energy loss, total kinetic energy (TKE), time of flight, and isotopic half-life. T1/2(g.s.)=0.42 s +12-9










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABC 3/2+ 0.269 s 1 
% β- = 100
% β-n = 0.100 19
     
    90.8 2 ABC (5/2+) 0.58 ns 9      90.8 2 
  100
[M1+E2]
     0.0
3/2+
   216.0 2 AB  (7/2+)      125.2 2 
   216.0 2 
  100
   36
[M1+E2]

    90.8
     0.0
(5/2+)
3/2+
   377.4 4 AB  (9/2+)      161.0 5 
   287.0 5 
  100
   67
[M1+E2]

   216.0
    90.8
(7/2+)
(5/2+)
   422.3 4 AB  (5/2-)      331.0 5 
   422.8 5 
   65
  100


    90.8
     0.0
(5/2+)
3/2+
   534.4 4 AB  (7/2-)      318.0 5 
   444.0 5 
  100
   57


   216.0
    90.8
(7/2+)
(5/2+)
   569.9 3  B  (11/2+)      192.0 4 
   353.9 3 
  100 43 
   93 18 
[M1+E2]

   377.4
   216.0
(9/2+)
(7/2+)
   682.3 3  B  (9/2-)      111.9 5 
   147.6 5 ?
   304.4 4 
   466.4 5 ?
   67 34 
   78 44 
  100 44 
   33 22 




   569.9
   534.4
   377.4
   216.0
(11/2+)
(7/2-)
(9/2+)
(7/2+)
   684.4 7 A        307.0 5 
  100

   377.4
(9/2+)
   854.6 4 AB       763.8 5 
   854.7 5 
  100
  100


    90.8
     0.0
(5/2+)
3/2+
   862.1 5 ? B       646.2 4 ?
  100

   216.0
(7/2+)
   993.9 5 AB       777.8 5 
   903.8 10 
   993.7 10 ?
   43
  100
   43



   216.0
    90.8
     0.0
(7/2+)
(5/2+)
3/2+
  1062.7 4  B       846.8 3 
   971.4 9 ?
  100 24 
   48 24 


   216.0
    90.8
(7/2+)
(5/2+)
  1071.9 8 AB  (3/2+)      981.4 10 
  1071.6 10 
   81
  100


    90.8
     0.0
(5/2+)
3/2+
  1106.1 5 AB       683.8 5 
  1015.7 10 
  1105.8 10 ?
  100
   50
   75



   422.3
    90.8
     0.0
(5/2-)
(5/2+)
3/2+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  1151.5 6 AB  (5/2+)      936.0 10 
  1060.8 10 
  1151.0 10 ?
  100
   69
   23



   216.0
    90.8
     0.0
(7/2+)
(5/2+)
3/2+
  1181.0 4  B       965.1 5 
  1090.1 5 
  100 22 
   56 28 


   216.0
    90.8
(7/2+)
(5/2+)
  1195.7 4  B      1104.9 4 
  100

    90.8
(5/2+)
  1240.6 8 ? B      1149.8 8 
  100

    90.8
(5/2+)
  1328.0 8 ? B      1112.0 7 ?
  100

   216.0
(7/2+)
  1382.6 9 ? B      1291.8 9 ?
  100

    90.8
(5/2+)
  1427.1 10 ? B      1211.1 9 ?
  100

   216.0
(7/2+)
  1663.9 8 ?A       1573.0 10 ?
  1664.0 10 ?
   67
  100


    90.8
     0.0
(5/2+)
3/2+
  1669.6 6 A       1455.0 10 ?
  1578.5 10 
  1668.6 10 
   20
  100
  100



   216.0
    90.8
     0.0
(7/2+)
(5/2+)
3/2+
  1971.9 8 A       1881.0 10 
  1972.0 10 
   50
  100


    90.8
     0.0
(5/2+)
3/2+
  2320.8 11 ?A       2230.0 10 ?
  100

    90.8
(5/2+)

E(level): From decay scheme. Only the most important levels are reported in 1984Pf01. Others are from 1985PfZZ.

Jπ(level): From assignment to a rotational band.

E(γ): From 99Rb β- decay (1984Pf01); 1985PfZZ estimate their uncertainties as 0.2 keV for the smallest energies and ≈ 1 keV for the largest. Individual uncertainties assigned by the evaluators

I(γ): From 1985PfZZ (100Rb β- n decay, priv. comm.)

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - ν3/2[411] band.
     0.0 3/2+ 0.269 s 1 
% β- = 100
% β-n = 0.100 19
     
    90.8 2  (5/2+) 0.58 ns 9      90.8 2 
  100
[M1+E2]
     0.0
3/2+
   216.0 2  (7/2+)      125.2 2 
   216.0 2 
  100
   36
[M1+E2]

    90.8
     0.0
(5/2+)
3/2+
   377.4 4  (9/2+)      161.0 5 
   287.0 5 
  100
   67
[M1+E2]

   216.0
    90.8
(7/2+)
(5/2+)
   569.9 3  (11/2+)      192.0 4 
   353.9 3 
  100 43 
   93 18 
[M1+E2]

   377.4
   216.0
(9/2+)
(7/2+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - ν5/2[322] band.
   422.3 4  (5/2-)        
   534.4 4  (7/2-)      318.0 5 
   444.0 5 
  100
   57


   216.0
    90.8
(7/2+)
(5/2+)
   682.3 3  (9/2-)      111.9 5 
   147.6 5 ?
   304.4 4 
   466.4 5 ?
   67 34 
   78 44 
  100 44 
   33 22 




   569.9
   534.4
   377.4
   216.0
(11/2+)
(7/2-)
(9/2+)
(7/2+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - ν3/2[422] band.
  1071.9 8  (3/2+)        
  1151.5 6  (5/2+)      936.0 10 
  1060.8 10 
  1151.0 10 ?
  100
   69
   23



   216.0
    90.8
     0.0
(7/2+)
(5/2+)
3/2+

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Additional Gamma Data:















E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
    90.8 (5/2+) 0.58 ns 9      90.8 2 [M1+E2]0.171 130.247B(E2)(W.u.)=1.3×102 3, B(M1)(W.u.)=0.040 7, α=0.247 7, α(K)=0.215 6, α(L)=0.0266 9, α(M)=0.00449 16, α(N)=0.000550 18, α(O)=3.20E-5 8
   216.0 (7/2+)      125.2 2 [M1+E2]0.164 160.0970α=0.0970 24, α(K)=0.0851 20, α(L)=0.0100 3, α(M)=0.00168 5, α(N)=0.000209 6, α(O)=1.28×10-5 3
   377.4 (9/2+)      161.0 5 [M1+E2]0.160 180.0479α=0.0479 11, α(K)=0.0422 10, α(L)=0.00484 13, α(M)=0.000815 21, α(N)=0.0001014 25, α(O)=6.36×10-6 14
   569.9 (11/2+)      192.0 4 [M1+E2]0.13 40.0292α=0.0292 9, α(K)=0.0257 8, α(L)=0.00291 10, α(M)=0.000489 17, α(N)=6.11×10-5 20, α(O)=3.89E-6 11

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.03/2+ 0.269 s 1 
% β- = 100
% β-n = 0.100 19
μ=-0.261 5 (1991Li05,2005St24), Q=0.84 8 (1991Li05,2005St24)
E(level): ν3/2[411] band.
    90.8(5/2+) 0.58 ns 9  E(level): ν3/2[411] band.
   216.0(7/2+)   E(level): ν3/2[411] band.
   377.4(9/2+)   E(level): ν3/2[411] band.
   422.3(5/2-)   E(level): ν5/2[322] band.
   534.4(7/2-)   E(level): ν5/2[322] band.
   569.9(11/2+)   E(level): ν3/2[411] band.
   682.3(9/2-)   E(level): ν5/2[322] band.
  1071.9(3/2+)   E(level): ν3/2[422] band.
  1151.5(5/2+)   E(level): ν3/2[422] band.

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