ADOPTED LEVELS, GAMMAS for 150Er

Authors: S. K. Basu, A. A. Sonzogni |  Citation: Nucl. Data Sheets 114, 435 (2013) |  Cutoff date: 1-Apr-2013 

 Full ENSDF file | Adopted Levels (PDF version) 


S(n)= 1.216×104 keV 3S(p)= 3474 keV 21Q(α)= 2299 keV 18
Reference: 2017WA10

References:
  A  150Tm ε decay  B  151Yb εp decay
  C  154Yb α decay  D  (HI,xnγ)
  E  (HI,xnγ): 13-93 NS DELAYED  F  (HI,xnγ): 2.55 μs DELAYED

General Comments:

Two isomers are observed in the reaction 144Sm(12C,6nγ) at E=120~MeV which are assigned to 150Ho and/or 150Er (1982Mo19).

Q-value: QBM=-11340 syst 196$ QEC=4115 14$ S(2n)=22495 3$ S(2p)=4550 21$ QECP=2576 19$










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0ABCDEF 0+ 18.5 s 7 
% ε = 100
     
  1578.33 23 AB   F 2+     1578.3 3 
  100
(E2)
     0
0+
  1785.89 23 AB   F 3-      207.6 2 
  1785.9 3 
  100 7 
    5.9 20 
(E1)
(E3)
  1578.33
     0
2+
0+
  2260.4 3 AB   F 5-      474.5 2 
  100
E2
  1785.89
3-
  2293.9 3 AB     4+      508.3 5 
   715.4 3 
    1.0E+2 5 
   72 10 

E2
  1785.89
  1578.33
3-
2+
  2620.8 3 AB   F 6+      360.40 14 
  100
E1
  2260.4
5-
  2632.8 3 A    F 7-      372.4 2 
  100
E2
  2260.4
5-
  2733.3 4 A    F 8+ ≈ 20 ns    100.52 9 
   112.6 3 
   49 9 
  100 11 
E1
[E2]
  2632.8
  2620.8
7-
6+
  2796.5 5    DEF 10+ 2.55 µs 10      63.2 3 
  100
E2
  2733.3
8+
  2854.6 4 A      (6-)      594.2 2 
  100
M1
  2260.4
5-
  2995.1 4 A      (5-)      734.7 2 
  100
M1
  2260.4
5-
  3187.0 5 A      (4-)     1401.1 5 
  100

  1785.89
3-
  3774.2 5 A      (5-)     1513.8 4 
  100

  2260.4
5-
  4000.3 5    DE  (11-)     1203.7 1 
  100

  2796.5
10+
  4242.9 5    DE  (12+)     1446.4 2 
  100

  2796.5
10+
  4437.8 5 A      (5-)     2177.4 4 
  100

  2260.4
5-
  4490.3 5    DE  (13-)      247.4 2 
   490.0 1 
   33.0 23 
  100 6 


  4242.9
  4000.3
(12+)
(11-)
  4884.2 5    DE  (15-)      393.9 1 
  100

  4490.3
(13-)
  4927.0 5    DE  (14+)      684.1 2 
  100

  4242.9
(12+)
  5221.8 5    DE  (16+)      294.8 2 
   337.6 2 
   21.0 25 
  100 5 


  4927.0
  4884.2
(14+)
(15-)
  6358.9 5    DE      1137.1 2 
  1474.6 4 
  100 8 
   33 6 


  5221.8
  4884.2
(16+)
(15-)
  6927.9 6    DE       569.0 2 
  100

  6358.9

  7152.9 6    DE      1931.2 4 
  100

  5221.8
(16+)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  7332.5 6    DE       404.5 2 
   973.7 4 
  100 12 
   24 12 


  6927.9
  6358.9


  7371.9 6    DE  15 ns 4      39.4 4 
   219.0 2 
  1013.1 3 
   40 8 
   13.3 17 
  100 7 
E1


  7332.5
  7152.9
  6358.9



  7936.6 6    DE       564.7 2 
  100

  7371.9

  8482.9 6    DE       546.3 2 
  100

  7936.6

  9148.5 6    DE       665.6 2 
  1211.8 4 
  100 8 
    4 4 


  8482.9
  7936.6


  9508.6 7    DE  43 ns 3     360.1 2 
  100

  9148.5

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Ground state positive parity cascade
     0 0+ 18.5 s 7 
% ε = 100
     
  1578.33 23  2+     1578.3 3 
  100
(E2)
     0
0+
  2293.9 3  4+      508.3 5 
   715.4 3 
    1.0E+2 5 
   72 10 

E2
  1785.89
  1578.33
3-
2+
  2620.8 3  6+      360.40 14 
  100
E1
  2260.4
5-
  2733.3 4  8+ ≈ 20 ns    100.52 9 
   112.6 3 
   49 9 
  100 11 
E1
[E2]
  2632.8
  2620.8
7-
6+
  2796.5 5  10+ 2.55 µs 10      63.2 3 
  100
E2
  2733.3
8+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Negative parity cascade
  1785.89 23  3-        
  2260.4 3  5-      474.5 2 
  100
E2
  1785.89
3-
  2632.8 3  7-      372.4 2 
  100
E2
  2260.4
5-

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
  1785.89 3-      207.6 2 (E1)0.0472α=0.0472, α(K)=0.0397 6, α(L)=0.00587 9, α(M)=0.001296 19, α(N)=0.000299 5, α(O)=4.15×10-5 6, α(P)=1.97E-6 3, α(N+)=0.000342 5
  2260.4 5-      474.5 2 E20.0188α=0.0188, α(K)=0.01491 21, α(L)=0.00305 5, α(M)=0.000698 10, α(N)=0.0001609 23, α(O)=2.17×10-5 3, α(P)=8.21E-7 12, α(N+)=0.000183 3
  2293.9 4+      715.4 3 E20.00692α=0.00692, α(K)=0.00569 8, α(L)=0.000961 14, α(M)=0.000216 3, α(N)=5.01×10-5 7, α(O)=6.97E-6 10, α(P)=3.22E-7 5, α(N+)=5.73E-5 8
  2620.8 6+      360.40 14 E10.01187α=0.01187, α(K)=0.01004 15, α(L)=0.001432 21, α(M)=0.000315 5, α(N)=7.30×10-5 11, α(O)=1.032E-5 15, α(P)=5.26E-7 8, α(N+)=8.39E-5 12
  2632.8 7-      372.4 2 E20.0366α=0.0366, α(K)=0.0279 4, α(L)=0.00667 10, α(M)=0.001544 22, α(N)=0.000355 5, α(O)=4.66×10-5 7, α(P)=1.492E-6 21, α(N+)=0.000403 6
  2733.3 8+ ≈ 20 ns    100.52 9 E10.321α=0.321 6, α(K)=0.267 5, α(L)=0.0425 7, α(M)=0.00943 16, α(N)=0.00216 4, α(O)=0.000289 5, α(P)=1.202×10-5 19, α(N+)=0.00246 4
8+ ≈ 20 ns    112.6 3 [E2]1.89α=1.89 4, α(K)=0.804 13, α(L)=0.831 16, α(M)=0.201 4, α(N)=0.0456 9, α(O)=0.00539 10, α(P)=3.36×10-5 6, α(N+)=0.0511 10
  2796.5 10+ 2.55 µs 10      63.2 3 E218.3B(E2)(W.u.)=0.24 3, α=18.3 5, α(K)=2.05 3, α(L)=12.5 4, α(M)=3.04 9, α(N)=0.685 19, α(O)=0.0792 22, α(P)=0.0001209 21, α(N+)=0.765 21
  2854.6 (6-)      594.2 2 M10.0225α=0.0225, α(K)=0.0190 3, α(L)=0.00273 4, α(M)=0.000602 9, α(N)=0.0001405 20, α(O)=2.04×10-5 3, α(P)=1.143E-6 16, α(N+)=0.0001620 23
  2995.1 (5-)      734.7 2 M10.01318α=0.01318, α(K)=0.01114 16, α(L)=0.001590 23, α(M)=0.000351 5, α(N)=8.18×10-5 12, α(O)=1.188E-5 17, α(P)=6.69E-7 10, α(N+)=9.44E-5 14
  7371.9 15 ns 4      39.4 4 E10.742B(E1)(W.u.)=5.7E-5, α=0.742 24, α(L)=0.579 19, α(M)=0.130 5, α(N)=0.0291 10, α(O)=0.00356 11, α(P)=0.000113 4, α(N+)=0.0328 11

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     00+ 18.5 s 7 
% ε = 100
E(level): Ground state positive parity cascade.
  1578.332+   E(level): Ground state positive parity cascade.
  1785.893-   E(level): Negative parity cascade.
  2260.45-   E(level): Negative parity cascade.
  2293.94+   E(level): Ground state positive parity cascade.
  2620.86+   E(level): Ground state positive parity cascade.
  2632.87-   E(level): Negative parity cascade.
  2733.38+ ≈ 20 ns E(level): Ground state positive parity cascade.
  2796.510+ 2.55 µs 10  E(level): Ground state positive parity cascade.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  1578.33  1578.3E(γ): from Tm ε decay
  2260.4   474.5E(γ): weighted average of 474.4~3 (150Tm ε decay), 474.5~2 ((HI,xnγ): 2.55~μs delayed)
  2293.9   715.4E(γ): observed only in 151Yb εp decay
  2620.8   360.40E(γ): weighted average of 360.4~2 (150Tm ε decay), 360.4~2 ((HI,xnγ): 2.55~μs delayed)
  2632.8   372.4E(γ): weighted average of 372.4~2 (150Tm ε decay), 372.4~2 ((HI,xnγ): 2.55~μs delayed)
  2733.3   100.52E(γ): weighted average of 100.7~3 (150Tm ε decay), 100.5~1 ((HI,xnγ): 2.55~μs delayed)
   112.6E(γ): observed only in (HI,xnγ): 2.55~μs delayed

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