ADOPTED LEVELS, GAMMAS for 98Sr

Authors: Jun Chen, Balraj Singh |  Citation: Nucl. Data Sheets 164, 1 (2020) |  Cutoff date: 15-Feb-2020 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=5872 keV 9S(n)= 5913 keV 5S(p)= 15193 keV 4Q(α)= -7500 keV 13
Reference: 2017WA10

References:
  A  98Rb β- decay (115 MS)  B  98Rb β- decay (96 MS)
  C  99Rb β-n decay (57.8 MS)  D  100Rb β-2n decay (52 MS)
  E  248Cm SF decay  F  252Cf SF decay
  G  7Li(98Rb,α3nγ)  H  235U(n,Fγ)
  I  Coulomb Excitation 

General Comments:

Other measurements:

2009Ma47: 238U(136Xe,Xγ): E=954 MeV 136Xe beam from the PIAVE-ALPI complex at INFN. Measured Eγ, Iγ, γγ-coin with the CLARA array and reaction products with the PRISMA spectrometer. Report 145γ, 289γ and 433γ.

Mass measurements: 2016Kl04, 2012Si10 (Penning-trap mass spectrometer TITAN at ISAC-TRIUMF facility), 2006Ha03 (Penning trap spectrometer at Jyvaskyla facility)

Hyperfine structure studies for the g.s.: 1990Bu12, 1988Si06

Measurements of rms charge radii: 1996Li25, 1992Ne09

Theory references: consult the NSR database (www.nndc.bnl.gov/nsr/) for 52 primary references, 43 dealing with nuclear structure calculations and 9 with decay modes and half-lives.

Q-value: S(2n)=9642 9, S(2p)=27921 21, Q(β-n)=1627 7 (2017Wa10)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCDEFGHI 0+ 0.653 s 2 
% β- = 100
% β-n = 0.23 3
     
   144.70 5 ABCDEFGHI 2+ 2.78 ns 8     144.70 5 
  100
E2
     0.0
0+
   215.64 10 ABC EF  I 0+ 22.9 ns 17      71.0 1 
   215.6
  100
 
E2
E0
   144.70
     0.0
2+
0+
   434.07 7  BC EFGHI 4+ 82 ps 6     289.40 5 
  100
E2
   144.70
2+
   867.37 9  B  EFGHI 6+ 7.86 ps 24     433.30 5 
  100
E2
   434.07
4+
   871.34 12 ABC EF  I (2+) 8.6 ps 14     437.7S
   655.8 2 
   726.7 3 
   871.2 3 
   <9
  100 10 
   23 4 
   25 4 
[E2]
[E2]
[M1+E2]
[E2]
   434.07
   215.64
   144.70
     0.0
4+
0+
2+
0+
  1224.4 3 A C       (0+,1)     1079.7 3 
  100

   144.70
2+
  1433.65 13     EF HI 8+ 2.97 ps 48     566.3 1 
  100
E2
   867.37
6+
  1539.42 16 AB        (2+)      668.1 3 
  1105.5 3 
  1323.9 3 
  1539.2 4 
   55 10 
   85 15 
  100 20 
   40 15 




   871.34
   434.07
   215.64
     0.0
(2+)
4+
0+
0+
  1600.69 14 AB        (2+)     1167.1 4 
  1455.9 3 
  1600.4 3 ?
    7 3 
  100 7 
   25 13 

Q(+D)

   434.07
   144.70
     0.0
4+
2+
0+
  1681.45 18  B  E     (4+)      810.4 4 
  1247.3 2 
  1537.0 5 ?
  100 50 
   70 30 
   50 30 



   871.34
   434.07
   144.70
(2+)
4+
2+
  1745.3 4 ?AB            1600.6 4 ?
  100

   144.70
2+
  1837.94 15 AB  EF    (3+) 7.5 ns 15    1403.9 4 
  1693.2 2 
    4.2 13 
  100 8 


   434.07
   144.70
4+
2+
  1922.4 4 ?AB            1777.7 4 ?
  100

   144.70
2+
  1964.16 20 AB        (1,2+)     1092.8 3 
  1819.5 3 
  1964.1 4 ?
   45 7 
  100 9 
   55 14 



   871.34
   144.70
     0.0
(2+)
2+
0+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  1978.53 17  B  EF    (4+)      140.6 1 
  1111.0
  1544.4
  100 4 
   <1
   32 7 



  1837.94
   867.37
   434.07
(3+)
6+
4+
  2043.1 10     E         1609
 

   434.07
4+
  2123.15 24     EF  I 10+ 1.07 ps 17     689.5 2 
  100
E2
  1433.65
8+
  2124.23 13 AB        (1+:4+)      286.2 2 
   523.4 3 
   585.0 3 
  1253.2 4 
  1979.6 3 
   42 8 
   42 17 
   33 17 
   58 17 
  100 25 





  1837.94
  1600.69
  1539.42
   871.34
   144.70
(3+)
(2+)
(2+)
(2+)
2+
  2153.61 25  B  EF    (5+)      175.1 2 
   315.7
  1286.1
  1719.5
   59 3 
   51 3 
    5 5 
  100 34 




  1978.53
  1837.94
   867.37
   434.07
(4+)
(3+)
6+
4+
  2182.1 15     E          139
 

  2043.1

  2206.09 20  B        (3)      605.4 2 
  1772.0 3 
   34 6 
  100 14 

D+Q
  1600.69
   434.07
(2+)
4+
  2231.38 14  B        (2,3,4+)      107.2 1 
   630.7 2 
  1359.8 3 
  2086.3 4 
   70 7 
  100 10 
  100 17 
   33 10 




  2124.23
  1600.69
   871.34
   144.70
(1+:4+)
(2+)
(2+)
2+
  2237.6 4 ?AB            2092.9 4 ?
  100

   144.70
2+
  2289.2 3 ?AB            2144.5 3 ?
  100

   144.70
2+
  2316.14 21 AB        (2+)      192.1 4 ?
  2171.5 3 
  2315.8 4 ?
    6 4 
  100 13 
   47 19 

D+Q

  2124.23
   144.70
     0.0
(1+:4+)
2+
0+
  2359.14 24  B        (2+,3,4+)      234.2 4 
  1925.5 4 
  2214.7 4 
   44 22 
  100 17 
   44 11 



  2124.23
   434.07
   144.70
(1+:4+)
4+
2+
  2361.1 6     EF    (6+)      207.8
   382.9
  1493?
  100 7 
   60 7 
 



  2153.61
  1978.53
   867.37
(5+)
(4+)
6+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2432.23 15     E     (6+)      751.0 5 ?
  1564.7 2 
  1998.2 2 
   23 14 
  100 18 
   55 14 



  1681.45
   867.37
   434.07
(4+)
6+
4+
  2534.3 6     EF    (6+) 4.5 ns 10    1666.8
  2100.2
   15 6 
  100 19 

[E2]
   867.37
   434.07
6+
4+
  2574.8 8     E          143
  1707
 
 


  2432.23
   867.37
(6+)
6+
  2602.7 8     EF    (7+)      241.5
   449.3
  100 11 
   39 7 


  2361.1
  2153.61
(6+)
(5+)
  2771.9 6     EF    (7+)      237.6
  1338.5
  1904.4
   28 5 
    6 6 
  100 12 



  2534.3
  1433.65
   867.37
(6+)
8+
6+
  2804.4 3 AB        (1,2+)     2659.8 4 ?
  2804.2 4 ?
   71 14 
  100 24 


   144.70
     0.0
2+
0+
  2818.27 18     E     (7+)      385.9 3 
  1384.7 2 
  1950.8 3 
   55 27 
   82 27 
  100 27 



  2432.23
  1433.65
   867.37
(6+)
8+
6+
  2873.5 9     EF    (8+)      270.8
   512.3
  100 8 
   77 8 


  2602.7
  2361.1
(7+)
(6+)
  2899.5 10     E          365
 

  2534.3
(6+)
  2927.7 4     EF    (12+) 0.46 ps 7     804.5 3 
  100
[E2]
  2123.15
10+
  2932.3 4  B        (2+,3,4)     2498.2 4 
  100

   434.07
4+
  3041.4 7     EF    (8+)      269.3
   918.2
  1607.8
   25 8 
  100 19 
   <2



  2771.9
  2123.15
  1433.65
(7+)
10+
8+
  3162.7 10     E          263
   391
 
 


  2899.5
  2771.9

(7+)
  3174.6 10     EF    (9+)      301.1
   571.9
   76 12 
  100 20 


  2873.5
  2602.7
(8+)
(7+)
  3290.5 4 AB        (1,2+)     3145.9 5 
  3290.2 6 ?
   58 11 
  100 39 


   144.70
     0.0
2+
0+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3341.4 12     EF    (9+)      300.0
  100

  3041.4
(8+)
  3442.7 4  B        (3)     3008.6 4 
  100
D+Q
   434.07
4+
  3445.7 14     E          283
 

  3162.7

  3462.7 4  B        (2+:4)     3028.6 4 
  100

   434.07
4+
  3510.7 11      F    (10+)      336.1
   637.2
  100 23 
  100 31 


  3174.6
  2873.5
(9+)
(8+)
  3622.7 5 AB        (1,2+)     3478.1 6 
  3622.4 7 ?
   65 18 
  100 41 


   144.70
     0.0
2+
0+
  3671.0 16     EF    (10+)      329.6
  100

  3341.4
(9+)

E(level): From a least-squares fit to γ-ray energies, assuming ΔEγ=1 keV when not stated

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - g.s. band
     0.0 0+ 0.653 s 2 
% β- = 100
% β-n = 0.23 3
     
   144.70 5  2+ 2.78 ns 8     144.70 5 
  100
E2
     0.0
0+
   434.07 7  4+ 82 ps 6     289.40 5 
  100
E2
   144.70
2+
   867.37 9  6+ 7.86 ps 24     433.30 5 
  100
E2
   434.07
4+
  1433.65 13  8+ 2.97 ps 48     566.3 1 
  100
E2
   867.37
6+
  2123.15 24  10+ 1.07 ps 17     689.5 2 
  100
E2
  1433.65
8+
  2927.7 4  (12+) 0.46 ps 7     804.5 3 
  100
[E2]
  2123.15
10+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Band based on 215.4, 0+.
   215.64 10  0+ 22.9 ns 17       
   871.34 12  (2+) 8.6 ps 14     437.7S
   655.8 2 
   726.7 3 
   871.2 3 
   <9
  100 10 
   23 4 
   25 4 
[E2]
[E2]
[M1+E2]
[E2]
   434.07
   215.64
   144.70
     0.0
4+
0+
2+
0+
  1681.45 18  (4+)      810.4 4 
  1247.3 2 
  1537.0 5 ?
  100 50 
   70 30 
   50 30 



   871.34
   434.07
   144.70
(2+)
4+
2+
  2432.23 15  (6+)      751.0 5 ?
  1564.7 2 
  1998.2 2 
   23 14 
  100 18 
   55 14 



  1681.45
   867.37
   434.07
(4+)
6+
4+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - ν9/2[404]-3/2[411],Kπ=(3+)
  1837.94 15  (3+) 7.5 ns 15       
  1978.53 17  (4+)      140.6 1 
  1111.0
  1544.4
  100 4 
   <1
   32 7 



  1837.94
   867.37
   434.07
(3+)
6+
4+
  2153.61 25  (5+)      175.1 2 
   315.7
  1286.1
  1719.5
   59 3 
   51 3 
    5 5 
  100 34 




  1978.53
  1837.94
   867.37
   434.07
(4+)
(3+)
6+
4+
  2361.1 6  (6+)      207.8
   382.9
  1493?
  100 7 
   60 7 
 



  2153.61
  1978.53
   867.37
(5+)
(4+)
6+
  2602.7 8  (7+)      241.5
   449.3
  100 11 
   39 7 


  2361.1
  2153.61
(6+)
(5+)
  2873.5 9  (8+)      270.8
   512.3
  100 8 
   77 8 


  2602.7
  2361.1
(7+)
(6+)
  3174.6 10  (9+)      301.1
   571.9
   76 12 
  100 20 


  2873.5
  2602.7
(8+)
(7+)
  3510.7 11  (10+)      336.1
   637.2
  100 23 
  100 31 


  3174.6
  2873.5
(9+)
(8+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - ν9/2[404]+3/2[411],Kπ=(6+)
  2534.3 6  (6+) 4.5 ns 10       
  2771.9 6  (7+)      237.6
  1338.5
  1904.4
   28 5 
    6 6 
  100 12 



  2534.3
  1433.65
   867.37
(6+)
8+
6+
  3041.4 7  (8+)      269.3
   918.2
  1607.8
   25 8 
  100 19 
   <2



  2771.9
  2123.15
  1433.65
(7+)
10+
8+
  3341.4 12  (9+)      300.0
  100

  3041.4
(8+)
  3671.0 16  (10+)      329.6
  100

  3341.4
(9+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - γ cascade
  2899.5 10         
  3162.7 10       263
   391
 
 


  2899.5
  2771.9

(7+)
  3445.7 14       283
 

  3162.7

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Additional Gamma Data:















E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
   144.70 2+ 2.78 ns 8     144.70 5 E2 0.262B(E2)(W.u.)=96 3, α=0.262, α(K)=0.225 4, α(L)=0.0313 5, α(M)=0.00527 8, α(N)=0.000623 9, α(O)=2.99E-5 5
   215.64 0+ 22.9 ns 17      71.0 1 E2 3.55B(E2)(W.u.)=62 +7-6, α=3.55, α(K)=2.86 5, α(L)=0.579 9, α(M)=0.0979 15, α(N)=0.01098 17, α(O)=0.000348 6
   434.07 4+ 82 ps 6     289.40 5 E2 0.0218B(E2)(W.u.)=124 +10-9, α=0.0218, α(K)=0.0191 3, α(L)=0.00230 4, α(M)=0.000385 6, α(N)=4.71E-5 7, α(O)=2.70E-6 4
   867.37 6+ 7.86 ps 24     433.30 5 E2 0.0057B(E2)(W.u.)=174.8 18, α=0.0057
   871.34 (2+) 8.6 ps 14     437.7[E2] 0.0055B(E2)(W.u.)<12, α=0.0055
(2+) 8.6 ps 14     655.8 2 [E2] 0.00168B(E2)(W.u.)=13 +5-4, α=0.00168
(2+) 8.6 ps 14     726.7 3 [M1+E2]0.7 100.00117B(E2)(W.u.)=0.6 +15-6, B(M1)(W.u.)=0.0007 +9-5, α=0.00117 7
(2+) 8.6 ps 14     871.2 3 [E2] B(E2)(W.u.)=0.8 +5-3
  1433.65 8+ 2.97 ps 48     566.3 1 E2 0.00255B(E2)(W.u.)=122 +25-18, α=0.00255
  1600.69 (2+)     1455.9 3 Q(+D)+1.5 GT 
  2123.15 10+ 1.07 ps 17     689.5 2 E2 0.00147B(E2)(W.u.)=126 +25-18, α=0.00147
  2534.3 (6+) 4.5 ns 10    2100.2[E2] B(E2)(W.u.)=0.00010 +4-3
  2927.7 (12+) 0.46 ps 7     804.5 3 [E2] B(E2)(W.u.)=135 +25-19
  3442.7 (3)     3008.6 4 D+Q-1.8 12 

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 0.653 s 2 
% β- = 100
% β-n = 0.23 3
Δ<r2>(97Sr-98Sr)=0.578 fm2 9 (1996Li25).
E(level): g.s. band.
   144.702+ 2.78 ns 8  μ=0.76 14 (1989Wo05,2014StZZ), Q=-0.52 24 (2016Cl01)
E(level): g.s. band.
   215.640+ 22.9 ns 17  E(level): Band based on 215.4, 0+.
   434.074+ 82 ps 6  Q=-1.87 +14-25 (2016Cl01)
E(level): g.s. band.
   867.376+ 7.86 ps 24  Q=-1.21 +39-16 (2016Cl01)
E(level): g.s. band.
   871.34(2+) 8.6 ps 14  Q=+0.02 +13-12 (2016Cl01)
E(level): Band based on 215.4, 0+.
  1433.658+ 2.97 ps 48  Q=-0.95 +74-88 (2016Cl01)
E(level): g.s. band.
  1681.45(4+)   E(level): Band based on 215.4, 0+.
  1837.94(3+) 7.5 ns 15  E(level): ν9/2[404]-3/2[411],Kπ=(3+).
  1978.53(4+)   E(level): ν9/2[404]-3/2[411],Kπ=(3+).
  2123.1510+ 1.07 ps 17  E(level): g.s. band.
  2153.61(5+)   E(level): ν9/2[404]-3/2[411],Kπ=(3+).
  2361.1(6+)   E(level): ν9/2[404]-3/2[411],Kπ=(3+).
  2432.23(6+)   E(level): Band based on 215.4, 0+.
  2534.3(6+) 4.5 ns 10  E(level): ν9/2[404]+3/2[411],Kπ=(6+).
  2602.7(7+)   E(level): ν9/2[404]-3/2[411],Kπ=(3+).
  2771.9(7+)   E(level): ν9/2[404]+3/2[411],Kπ=(6+).
  2873.5(8+)   E(level): ν9/2[404]-3/2[411],Kπ=(3+).
  2927.7(12+) 0.46 ps 7  E(level): g.s. band.
  3041.4(8+)   E(level): ν9/2[404]+3/2[411],Kπ=(6+).
  3174.6(9+)   E(level): ν9/2[404]-3/2[411],Kπ=(3+).
  3341.4(9+)   E(level): ν9/2[404]+3/2[411],Kπ=(6+).
  3510.7(10+)   E(level): ν9/2[404]-3/2[411],Kπ=(3+).
  3671.0(10+)   E(level): ν9/2[404]+3/2[411],Kπ=(6+).

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Additional Gamma Comments:

E(level)E(gamma)Comments
   144.70   144.70E(γ): from 248Cm SF decay (2019Ur01). Others: 144.5 1 (2002Lh01), 144.4 2 (1977Wo07), 144.2 (1987Ma58), 144.5 (1984Be50), 144.7 (1979Pe17), 144.6 (1980Sc13), 144.224 6 (1979Bo26, curved crystal) from 98Rb decay (96 ms); 144.6 3 (1982Kr11, 100Rb β-2n decay); 144.9 (2004Li66) and 144.3 (1997Ha64) from 252Cf SF decay. Value from 197Bo26 is the most precise but seemingly discrepant, in view of higher values by ≈0.4-0.5 keV in other studies.
   215.64   215.6E(γ): from level energy difference
   434.07   289.40E(γ): from 248Cm SF decay (2019Ur01). Others: 289.3 1 (2002Lh01) 289.2 2 (1977Wo07) in 98Rb decay (96 ms) are in agreement.
   867.37   433.30E(γ): from 248Cm SF decay (2019Ur01).
M(γ): γγ(θ) in 252Cf SF decay (2019Ur01) (see data in 248Cm SF), and RUL
   871.34   437.7E(γ): from level-energy difference. This transition is considered in GOSIA analysis by 2016Cl01
I(γ): deduced from B(E2) values in Coulomb excitation (by evaluators).
   726.7E(γ): from 248Cm SF decay
   871.2E(γ): average of values from 248Cm SF decay and 98Rb decay (96 ms)
  1433.65   566.3M(γ): γγ(θ) in 252Cf SF decay (2019Ur01) (see data in 248Cm SF), and RUL
  1837.94  1403.9I(γ): weighted average of 3.9 13 from 98Rb β- decay (96 ms) and 6 3 from 252Cf SF decay
  1693.2I(γ): from 98Rb β- decay (96 ms) and from 252Cf SF decay
  2043.1  1609E(γ): from 248Cm SF decay only
  2123.15   689.5E(γ): from 248Cm SF decay
M(γ): γγ(θ) in 252Cf SF decay (2019Ur01) (see data in 248Cm SF), and RUL
  2182.1   139E(γ): from 248Cm SF decay only
  2361.1  1493E(γ): from 248Cm SF decay only
  2927.7   804.5E(γ): from 248Cf SF decay (2019Ur01). Others: 812.5 (1996Sm04), 810.0 (2001Ur01) in 248Cm SF decay; 805.6 (2004Li66) in 252Cf SF decay. The spread in the available Eγ values make the precise energy of this transition uncertain. This may be the reason 2019Ur01, in Fig. 2 of their paper place Eγ value and the corresponding level energy in parentheses.
  3174.6   301.1E(γ): 304 in 248Cm SF decay (2004Du10)
   571.9E(γ): 576 in 248Cm SF decay (2004Du10)

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