ADOPTED LEVELS, GAMMAS for 148Ce

Author: N. Nica |  Citation: Nucl. Data Sheets 117, 1 (2014) |  Cutoff date: 1-Oct-2013 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2137 keV 13S(n)= 6456 keV 14S(p)= 11009 keV 15Q(α)= -1056 keV 13
Reference: 2012WA38

References:
  A  148La β- decay  B  149La β-n decay (1.05 S)
  C  252Cf SF decay  D  235U(n,F) E=THERMAL








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0A CD 0+ 56.8 s 3 
% β- = 100
     
   158.467 5 A CD 2+ 1.01 ns 6     158.468 5 
  100
E2
     0.0
0+
   453.45 5 A CD 4+ < 1.2 ns    295.07 9 
  100
[E2]
   158.467
2+
   760.32 4 A    (1-)      601.88 6 
   760.30 6 
   89 1 
  100 5 


   158.467
     0.0
2+
0+
   770.43 6 A    0+      611.81 7 
  100
E2
   158.467
2+
   839.52 16   CD 6+      386.15 20 
  100

   453.45
4+
   841.39 5 A    (3-)      387.92 10 
   682.97 6 
   22 1 
  100 8 


   453.45
   158.467
4+
2+
   935.59 5 A    (2+)      482.19 7 
   777.16 6 
   13 1 
  100 3 


   453.45
   158.467
4+
2+
   989.90 4 A    (2+)       54.24S
   536.38 16 
   831.33 6 
   989.85 6 
 
    5.3 6 
   55 3 
  100 3 




   935.59
   453.45
   158.467
     0.0
(2+)
4+
2+
0+
  1116.63 5 A C  (3+)      663.20 7 
   958.23 6 
   38 1 
  100 1 


   453.45
   158.467
4+
2+
  1223.98 11 A    (4+)      770.53 10 
  100

   453.45
4+
  1290.32 20   C  8+      450.75 20 
  100

   839.52
6+
  1351.40 23   C  (7-)      511.9 2 
  100

   839.52
6+
  1368.89 5 A         252.45 7 
   378.93 4 
   433.32 8 
   42 3 
  100 10 
   28.2 14 



  1116.63
   989.90
   935.59
(3+)
(2+)
(2+)
  1415.61 7 A         298.81 14 
   425.68 8 
  1257.42 14 
   72 6 
  100 6 
   61 6 



  1116.63
   989.90
   158.467
(3+)
(2+)
2+
  1423.04 14   C  (5+)      306.3 2 
   583.5 3 
   969.65 25 
   96 5 
   58 3 
  100 5 



  1116.63
   839.52
   453.45
(3+)
6+
4+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  1456.88 25 ?A        1298.46 25 ?
  100

   158.467
2+
  1486.33 21 A C  (4-)      369.7 2 
  100

  1116.63
(3+)
  1497.07 7 A    (2+,1)     1338.64 8 
  1496.97 12 
  100 6 
   34 3 


   158.467
     0.0
2+
0+
  1554.76 9 A         713.37 12 
   794.44 11 
   69 8 
  100 8 


   841.39
   760.32
(3-)
(1-)
  1558.51 16 ?A        1105.06 15 
  100

   453.45
4+
  1584.11 17 ?A        1425.58 11 ?
  100

   158.467
2+
  1589.91 6 A    (2+,1)      654.53 11 
   819.28 8 
  1431.56 10 
  1589.93 13 
   58 17 
  100 25 
  100 4 
   63 4 




   935.59
   770.43
   158.467
     0.0
(2+)
0+
2+
0+
  1622.78 12 ?A        1464.36 11 ?
  100

   158.467
2+
  1625.98 10 ?A         257.09 9 
  100

  1368.89

  1682.00 19   C  (6-)      195.7?
   258.85 20 
 
  100


  1486.33
  1423.04
(4-)
(5+)
  1728.39 11 A         887.12 12 
   967.4 4 
  1569.65 25 
  100 13 
   88 25 
   88 25 



   841.39
   760.32
   158.467
(3-)
(1-)
2+
  1753.58 23   C  (9-)      402.2 2 
   463.2 2 
   47 4 
  100 5 


  1351.40
  1290.32
(7-)
8+
  1786.67 18   C  (7+)      104.8 2 
   363.65 20 
   947.3 2 
   67 4 
  100 6 
   81 6 
E1


  1682.00
  1423.04
   839.52
(6-)
(5+)
6+
  1788.66 23   C  (7)      949.1 2 
  100

   839.52
6+
  1790.7 3   C  10+      500.8 5 
  100

  1290.32
8+
  1891.20 8 A    (2+,1)     1130.95 10 
  1732.67 16 
  1891.02 17 
   86 9 
   55 5 
  100 5 



   760.32
   158.467
     0.0
(1-)
2+
0+
  1927.69 21 ?A        1769.27 21 ?
  100

   158.467
2+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  1954.09 22   C  (8-)      166.95 20 
   271.75 20 
  100 5 
   49 3 
E1

  1786.67
  1682.00
(7+)
(6-)
  2095.20 23   C  (9)      306.5 2 
   804.9 2 
  100 8 
   65 5 


  1788.66
  1290.32
(7)
8+
  2144.48 15 A        1303.3 3 
  1985.93 17 
    5 5 
  100 2 


   841.39
   158.467
(3-)
2+
  2153.67 14 A    (2+,1)     1995.23 16 
  2153.56 23 
  100 3 
   22 3 


   158.467
     0.0
2+
0+
  2192.37 24 ?A        2033.95 24 ?
 

   158.467
2+
  2198.76 24   C  (9+)      244.95 25 
   411.9 2 
  100 9 
   67 6 


  1954.09
  1786.67
(8-)
(7+)
  2224.7 3   C  (11-)      434.1 2 
   471.1 2 
  100 6 
   42 4 


  1790.7
  1753.58
10+
(9-)
  2252.22 14 A        1316.69 18 
  2093.66 21 
    6.4 8 
  100 2 


   935.59
   158.467
(2+)
2+
  2306.9 4   C  (10-)      108.0 6 
   352.9 4 
   54 3 
  100 8 
E1

  2198.76
  1954.09
(9+)
(8-)
  2327.8 3   C  12+      103.1 2 
   536.95 25 
    4.6 7 
  100 6 


  2224.7
  1790.7
(11-)
10+
  2486.8 3   C  (11)      391.55 20 
   696.1 2 
  100 8 
  100 8 


  2095.20
  1790.7
(9)
10+
  2550.36 21 A    (2+,1)     2391.94 22 
  2549.8 6 
  100 7 
    9 6 


   158.467
     0.0
2+
0+
  2673.5 3   C  (11+)      474.7 2 
  100

  2198.76
(9+)
  2751.1 5   C  (12-)      444.2 2 
  100

  2306.9
(10-)
  2751.7 3   C  (13-)      423.9 2 
   527.0 2 
  100 9 
   65 9 


  2327.8
  2224.7
12+
(11-)
  2887.9 4   C  14+      136.3 2 
   559.7 5 
    8.2 11 
  100 5 


  2751.7
  2327.8
(13-)
12+
  2969.2 3   C  (13)      482.5 2 
   641.4 2 
  100 12 
   71 12 


  2486.8
  2327.8
(11)
12+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3287.3 5   C  (14-)      536.2 2 
  100

  2751.1
(12-)
  3326.4 4   C  (15-)      438.4 2 
   574.7 2 
  100 14 
   64 7 


  2887.9
  2751.7
14+
(13-)
  3464.1 4   C  16+      137.8 2 
   576.15 20 
    4.1 13 
  100 5 


  3326.4
  2887.9
(15-)
14+
  3898.7 6   C  (16-)      611.4 2 
  100

  3287.3
(14-)
  3944.2 4   C  (17-)      617.8 2 
  100

  3326.4
(15-)
  4065.8 4   C  18+      601.65 20 
  100

  3464.1
16+
  4685.4 5   C  20+      619.6 2 
  100

  4065.8
18+
  5311.2 5   C  22+      625.8 2 
  100

  4685.4
20+

E(level): From a least-squares fit to Eγ data

Jπ(level): From 2006Ch24 based on presumed rotational-band structure and systematics, unless noted otherwise

E(γ): From 148La β- decay for transitions not related to band structures, while for in-band and inter-band transitions Eγ’s are from 252Cf SF decay; for levels common to both datasets, Eγ’s are from 148La β- decay

I(γ): Relative photon branching from each level

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Kπ=0+ band, α=+1.
     0.0 0+ 56.8 s 3 
% β- = 100
     
   158.467 5  2+ 1.01 ns 6     158.468 5 
  100
E2
     0.0
0+
   453.45 5  4+ < 1.2 ns    295.07 9 
  100
[E2]
   158.467
2+
   839.52 16  6+      386.15 20 
  100

   453.45
4+
  1290.32 20  8+      450.75 20 
  100

   839.52
6+
  1790.7 3  10+      500.8 5 
  100

  1290.32
8+
  2327.8 3  12+      103.1 2 
   536.95 25 
    4.6 7 
  100 6 


  2224.7
  1790.7
(11-)
10+
  2887.9 4  14+      136.3 2 
   559.7 5 
    8.2 11 
  100 5 


  2751.7
  2327.8
(13-)
12+
  3464.1 4  16+      137.8 2 
   576.15 20 
    4.1 13 
  100 5 


  3326.4
  2887.9
(15-)
14+
  4065.8 4  18+      601.65 20 
  100

  3464.1
16+
  4685.4 5  20+      619.6 2 
  100

  4065.8
18+
  5311.2 5  22+      625.8 2 
  100

  4685.4
20+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=7- band, α=+1.
  1351.40 23  (7-)        
  1753.58 23  (9-)      402.2 2 
   463.2 2 
   47 4 
  100 5 


  1351.40
  1290.32
(7-)
8+
  2224.7 3  (11-)      434.1 2 
   471.1 2 
  100 6 
   42 4 


  1790.7
  1753.58
10+
(9-)
  2751.7 3  (13-)      423.9 2 
   527.0 2 
  100 9 
   65 9 


  2327.8
  2224.7
12+
(11-)
  3326.4 4  (15-)      438.4 2 
   574.7 2 
  100 14 
   64 7 


  2887.9
  2751.7
14+
(13-)
  3944.2 4  (17-)      617.8 2 
  100

  3326.4
(15-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Kπ=3+ band, α=-1.
  1116.63 5  (3+)        
  1423.04 14  (5+)      306.3 2 
   583.5 3 
   969.65 25 
   96 5 
   58 3 
  100 5 



  1116.63
   839.52
   453.45
(3+)
6+
4+
  1786.67 18  (7+)      104.8 2 
   363.65 20 
   947.3 2 
   67 4 
  100 6 
   81 6 
E1


  1682.00
  1423.04
   839.52
(6-)
(5+)
6+
  2198.76 24  (9+)      244.95 25 
   411.9 2 
  100 9 
   67 6 


  1954.09
  1786.67
(8-)
(7+)
  2673.5 3  (11+)      474.7 2 
  100

  2198.76
(9+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - Kπ=4- band, α=-1.
  1486.33 21  (4-)        
  1682.00 19  (6-)      195.7?
   258.85 20 
 
  100


  1486.33
  1423.04
(4-)
(5+)
  1954.09 22  (8-)      166.95 20 
   271.75 20 
  100 5 
   49 3 
E1

  1786.67
  1682.00
(7+)
(6-)
  2306.9 4  (10-)      108.0 6 
   352.9 4 
   54 3 
  100 8 
E1

  2198.76
  1954.09
(9+)
(8-)
  2751.1 5  (12-)      444.2 2 
  100

  2306.9
(10-)
  3287.3 5  (14-)      536.2 2 
  100

  2751.1
(12-)
  3898.7 6  (16-)      611.4 2 
  100

  3287.3
(14-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - Band based on 7.
  1788.66 23  (7)        
  2095.20 23  (9)      306.5 2 
   804.9 2 
  100 8 
   65 5 


  1788.66
  1290.32
(7)
8+
  2486.8 3  (11)      391.55 20 
   696.1 2 
  100 8 
  100 8 


  2095.20
  1790.7
(9)
10+
  2969.2 3  (13)      482.5 2 
   641.4 2 
  100 12 
   71 12 


  2486.8
  2327.8
(11)
12+

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   158.467 2+ 1.01 ns 6     158.468 5 E20.407B(E2)(W.u.)=86 6, α=0.407, α(K)=0.293 5, α(L)=0.0896 13, α(M)=0.0197 3, α(N)=0.00425 6, α(O)=0.000618 9, α(P)=1.713E-5 24, α(N+)=0.00489 7
   453.45 4+ < 1.2 ns    295.07 9 [E2]0.0513B(E2)(W.u.)>4.3, α=0.0513, α(K)=0.0412 6, α(L)=0.00802 12, α(M)=0.001726 25, α(N)=0.000376 6, α(O)=5.71E-5 8, α(P)=2.71E-6 4, α(N+)=0.000436 7
   770.43 0+      611.81 7 E20.00634α=0.00634 9, α(K)=0.00534 8, α(L)=0.000790 11, α(M)=0.0001665 24, α(N)=3.67×10-5 6, α(O)=5.80E-6 9, α(P)=3.81E-7 6, α(N+)=4.29E-5 6
  1786.67 (7+)      104.8 2 E10.214α=0.214 4, α(K)=0.182 3, α(L)=0.0252 4, α(M)=0.00525 8, α(N)=0.001148 18, α(O)=0.000179 3, α(P)=1.103×10-5 17, α(N+)=0.001338 20
  1954.09 (8-)      166.95 20 E10.0584α=0.0584, α(K)=0.0499 8, α(L)=0.00669 10, α(M)=0.001392 20, α(N)=0.000306 5, α(O)=4.83×10-5 7, α(P)=3.21E-6 5, α(N+)=0.000357 6
  2306.9 (10-)      108.0 6 E10.197α=0.197 5, α(K)=0.167 4, α(L)=0.0232 5, α(M)=0.00482 11, α(N)=0.001054 23, α(O)=0.000164 4, α(P)=1.020×10-5 21, α(N+)=0.00123 3

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 56.8 s 3 
% β- = 100
Measured δ<r2> =1.089 fm2 2 relative to 144Ce (2003Ch60); <r2>1/2=4.9911 fm 35 (2004An14).
E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
   158.4672+ 1.01 ns 6  μ=0.74 12 (2005St24,1986Gi05,1999Sm05), G=0.38 5
E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
   453.454+ < 1.2 ns E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
   839.526+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
  1116.63(3+)   E(level): Kπ=3+ band, α=-1.
  1290.328+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
  1351.40(7-)   E(level): Kπ=7- band, α=+1.
  1423.04(5+)   E(level): Kπ=3+ band, α=-1.
  1486.33(4-)   E(level): Kπ=4- band, α=-1.
  1497.07(2+,1)   Jπ(level): Gammas to 0+ and 2+.
  1589.91(2+,1)   Jπ(level): Gammas to 0+ and 2+.
  1682.00(6-)   E(level): Kπ=4- band, α=-1.
  1753.58(9-)   E(level): Kπ=7- band, α=+1.
  1786.67(7+)   E(level): Kπ=3+ band, α=-1.
  1788.66(7)   E(level): Band based on 7.
  1790.710+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
  1891.20(2+,1)   Jπ(level): Gammas to 0+ and 2+.
  1954.09(8-)   E(level): Kπ=4- band, α=-1.
  2095.20(9)   E(level): Band based on 7.
  2153.67(2+,1)   Jπ(level): Gammas to 0+ and 2+.
  2198.76(9+)   E(level): Kπ=3+ band, α=-1.
  2224.7(11-)   E(level): Kπ=7- band, α=+1.
  2306.9(10-)   E(level): Kπ=4- band, α=-1.
  2327.812+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
  2486.8(11)   E(level): Band based on 7.
E(level)Jπ(level)T1/2(level)Comments
  2550.36(2+,1)   Jπ(level): Gammas to 0+ and 2+.
  2673.5(11+)   E(level): Kπ=3+ band, α=-1.
  2751.1(12-)   E(level): Kπ=4- band, α=-1.
  2751.7(13-)   E(level): Kπ=7- band, α=+1.
  2887.914+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
  2969.2(13)   E(level): Band based on 7.
  3287.3(14-)   E(level): Kπ=4- band, α=-1.
  3326.4(15-)   E(level): Kπ=7- band, α=+1.
  3464.116+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
  3898.7(16-)   E(level): Kπ=4- band, α=-1.
  3944.2(17-)   E(level): Kπ=7- band, α=+1.
  4065.818+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
  4685.420+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.
  5311.222+   E(level): Kπ=0+ band, α=+1.
Jπ(level): E2 γ to 0+ band member and regular band sequence.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   158.467   158.468M(γ): from K/L in 252Cf SF decay and RUL
   770.43   611.81M(γ): from γγ(θ) and syst for β-vibrational levels in A≈150 deformed nuclei (148La β- decay)
  1486.33   369.7E(γ): from 252Cf SF decay
  1786.67   104.8M(γ): based on α(exp) (252Cf SF decay)
  1954.09   166.95M(γ): based on α(exp) (252Cf SF decay)
  2306.9   108.0M(γ): based on α(exp) (252Cf SF decay)

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