ADOPTED LEVELS, GAMMAS for 148Dy

Author: N. Nica |  Citation: Nucl. Data Sheets 208, 1 (2026) |  Cutoff date: 17-Jan-2026 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-9870 keV 80S(n)= 11735 keV 12S(p)= 4406 keV 12Q(α)= 1475 keV 29
Reference: 2021WA16

References:
  A  148Ho ε decay (2.2 S)  B  148Ho ε decay (9.59 S)
  C  149Er εp decay (4 S)  D  149Er εp decay (9.6 S)
  E  152Er α decay  F  (HI,xnγ)

General Comments:

Mass measurement (Penning trap): 2007Ra37, 2000Be42

Gamow-Teller giant state (total absorption spectroscopy): 2004Al35

Q-value: S(2n)=21447 11, S(2p)=6352 10, Q(εp)=209 9 (2021Wa16)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
      0.0ABCDEF 0+ 3.3 m 2 
% ε = 100
     
   1677.3AB D F 2+     1677.3 1 
  100
E2
      0.0
0+
   1687.5 B D F 3-       10S
  1687.5 1 
   ≈0.75
  100
[E1]
E3
   1677.3
      0.0
2+
0+
   2348.3 B D F 5-      660.8 1 
  100
E2
   1687.5
3-
   2426.7 B D F 4+      739.4 1 
   749.4 2 
  100 7 
   50 4 
E1
E2
   1687.5
   1677.3
3-
2+
   2731.0 B D F 6+      304.3 1 
   382.7
  100
 
E2
E1
   2426.7
   2348.3
4+
5-
   2738.1 B D F 7-      389.8 1 
  100
E2
   2348.3
5-
   2832.2 B   F 8+ 65 ns 10      94.1 2 
   101.2 6 
  100 20 
   20 4 
E1
E2
   2738.1
   2731.0
7-
6+
   2853.9 B     4-,5-,6-      504.3 2 
  100
M1
   2348.3
5-
   2919.1     F 10+ 471 ns 20      86.9
  100
E2
   2832.2
8+
   2969.6 B     4-,5-      115.6 3 
   542.0 5 
   620 1 
  1281.3 2 
   23 1 
   12 2 
   49 14 
  100 3 
M1



   2853.9
   2426.7
   2348.3
   1687.5
4-,5-,6-
4+
5-
3-
   2995.2 B     (4,5-)      567.3 2 
  1307.2 2 
   81 6 
  100 9 


   2426.7
   1687.5
4+
3-
   3115.4 B     6-      261.5 5 
   282.2 5 
   376.1 5 
   765.9 2 
   13 3 
   10 2 
   28 4 
  100 5 


M1

   2853.9
   2832.2
   2738.1
   2348.3
4-,5-,6-
8+
7-
5-
   3171.7 B     (4,5-)     1483.4 2 
  100

   1687.5
3-
   3188.6 B     (4,5-)     1500.3 2 
  100

   1687.5
3-
   3279.6 B     5-,6-      164.1 3 
   425.7 4 
   930.0 3 
   28 4 
   31 6 
  100 7 
M1


   3115.4
   2853.9
   2348.3
6-
4-,5-,6-
5-
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   3323.2 B     (5,6)-      353.6 4 
   583.7 3 
   973.6 2 
   33 5 
   24 6 
  100 3 
M1


   2969.6
   2738.1
   2348.3
4-,5-
7-
5-
   3327.7 B     (4,5-)     1639.4 4 
  100

   1687.5
3-
   3405.0 B     (5-,6)      665.8 4 
  100

   2738.1
7-
   3755.8 B     (4,5)-     1328.3 5 
  1405.9 2 
   28 6 
  100 6 


   2426.7
   2348.3
4+
5-
   3980.7     F 11-     1061.1
  100
E1
   2919.1
10+
   4289.5 B     (4,5)-     1101.0 3 
  1320.0 2 
  1861.5 4 
  1939.7 3 
  2600.9 4 
   63 3 
   55 3 
   26 3 
  100 4 
   16 2 





   3188.6
   2969.6
   2426.7
   2348.3
   1687.5
(4,5-)
4-,5-
4+
5-
3-
   4393.0 B     (5,6)-     1397.3 3 
  1661.5 8 
  2043.4 4 
  100 10 
   31 7 
   35 8 



   2995.2
   2731.0
   2348.3
(4,5-)
6+
5-
   4459.8 B     (4,5,6)     2110.2 4 
  100

   2348.3
5-
   4477.2     F 12-      496.5
  100
M1
   3980.7
11-
   4634.2 B     (4,5)-     2284.6 4 
  2945.8 10 
  100 8 
   17 6 


   2348.3
   1687.5
5-
3-
   4761.9 B     (4,5)-     2412.4 4 
  3073.4 6 
  100 8 
   27 6 


   2348.3
   1687.5
5-
3-
   4851.4     F 12+     1932.3
  100
E2
   2919.1
10+
   5054.6 B     (4,5,6)-     2705.0 4 
  100

   2348.3
5-
   5261.0 B     (4,5,6)-     2291.4 4 
  100

   2969.6
4-,5-
   5270.4     F 13      418.3
   794.0
 
 

D
   4851.4
   4477.2
12+
12-
   5410.5     F 14+      559.1
  100
E2
   4851.4
12+
   5522.9     F 14-     1045.7
  100
E2
   4477.2
12-
   5772.4     F 15-      361.8
   502.2
 
 
E1
Q
   5410.5
   5270.4
14+
13
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   5985.5     F 16-      212.7
   462.9
 
 

E2
   5772.4
   5522.9
15-
14-
   6264.5     F 17-      279.4
   491.4
 
 
M1
E2
   5985.5
   5772.4
16-
15-
   6591.8     F 18      327.3
  100
D
   6264.5
17-
   6601?     F      829?
  100

   5772.4
15-
   7115.7     F (17)      851.6
  1130.9
 
 

(D)
   6264.5
   5985.5
17-
16-
   7434.6     F (18+)      318.4
  1170.6
 
 
D
(E1)
   7115.7
   6264.5
(17)
17-
   8198.5     F (19)      763.95
  100
D
   7434.6
(18+)
   8532.0     F (20)      333.5
  100
D
   8198.5
(19)
   8785.4     F      586.9
  100

   8198.5
(19)
   9017.4     F      818.9
 

   8198.5
(19)
   9169.6     F      152.0
   637.9
   971.0
 
 
 
D


   9017.4
   8532.0
   8198.5

(20)
(19)
   9289.8     F (21)      757.8
  100
D
   8532.0
(20)
   9704.3     F      535.2
  1171.9
 
 
D

   9169.6
   8532.0

(20)
  10058.0     F      353.7
  100
D
   9704.3

  10103.1     F      933.5
  100

   9169.6

  10111.5     F (23)      407.1
   821.8
 
 

Q
   9704.3
   9289.8

(21)
  10456.4     F      353.3
   398.5
   750.5
 
 
 



  10103.1
  10058.0
   9704.3



  10933.5     F      477.4
   821.0?
 
 


  10456.4
  10111.5

(23)
  11816.4     F      882.9
  100
Q
  10933.5

E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  12536.8     F      720.4
  100
D
  11816.4

  12651.5     F      114.7
 
D
  12536.8

  13220.0     F      568.5
  100
(D)
  12651.5

  14235.0     F     1015.0
  100

  13220.0

Jπ(level): The values of Jπ are based on unpublished data on γ(θ) and α(K)exp (1989DrZZ,1986DiZZ), see also 1982JuZY, 1981Kl05, and 1981Ha17 (HI,xnγ); the values of Jπ for levels populated only in ε decay were derived from branching and log ft data (1989Ta11). For level from (HI,xnγ) dataset spin generally incesases with excitation energy.

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   1677.3 2+     1677.3 1 E21.24×10-3α=1.24×10-3 2, α(K)=0.000939 13, α(L)=0.0001291 18, α(M)=2.81E-5 4, α(N)=6.50E-6 9, α(O)=9.49E-7 13, α(P)=5.42E-8 8
   1687.5 3-       10[E1]27.0α=27.0
3-     1687.5 1 E32.13×10-3α=2.13×10-3 3, α(K)=0.001726 24, α(L)=0.000258 4, α(M)=5.67E-5 8, α(N)=1.310E-5 18, α(O)=1.899E-6 27, α(P)=1.035E-7 14
   2348.3 5-      660.8 1 E20.00759α=0.00759 11, α(K)=0.00625 9, α(L)=0.001047 15, α(M)=0.0002331 33, α(N)=5.35×10-5 7, α(O)=7.54E-6 11, α(P)=3.57E-7 5
   2426.7 4+      739.4 1 E12.24×10-3α=2.24×10-3 3, α(K)=0.001912 27, α(L)=0.000257 4, α(M)=5.59E-5 8, α(N)=1.288E-5 18, α(O)=1.874E-6 26, α(P)=1.059E-7 15
4+      749.4 2 E20.00568α=0.00568 8, α(K)=0.00471 7, α(L)=0.000756 11, α(M)=0.0001676 23, α(N)=3.85×10-5 5, α(O)=5.47E-6 8, α(P)=2.70E-7 4
   2731.0 6+      304.3 1 E20.0618α=0.0618 9, α(K)=0.0464 7, α(L)=0.01191 17, α(M)=0.00274 4, α(N)=0.000623 9, α(O)=8.20×10-5 12, α(P)=2.424E-6 34
6+      382.7E10.00951α=0.00951 13, α(K)=0.00807 11, α(L)=0.001126 16, α(M)=0.0002454 34, α(N)=5.64×10-5 8, α(O)=8.10E-6 11, α(P)=4.34E-7 6
   2738.1 7-      389.8 1 E20.0298α=0.0298 4, α(K)=0.02332 33, α(L)=0.00505 7, α(M)=0.001148 16, α(N)=0.000262 4, α(O)=3.53×10-5 5, α(P)=1.268E-6 18
   2832.2 8+ 65 ns 10      94.1 2 E10.363B(E1)(W.u.)=2.15E-6 +45-37, α=0.363 5, α(K)=0.303 5, α(L)=0.0474 7, α(M)=0.01039 16, α(N)=0.00236 4, α(O)=0.000320 5, α(P)=1.384E-5 21
8+ 65 ns 10     101.2 6 E22.59B(E2)(W.u.)=1.70 +48-35, α=2.59 7, α(K)=1.090 22, α(L)=1.16 4, α(M)=0.277 9, α(N)=0.0621 19, α(O)=0.00747 23, α(P)=4.52E-5 9
   2853.9 4-,5-,6-      504.3 2 M10.0291α=0.0291 4, α(K)=0.02461 35, α(L)=0.00348 5, α(M)=0.000762 11, α(N)=0.0001764 25, α(O)=2.59×10-5 4, α(P)=1.504E-6 21
   2919.1 10+ 471 ns 20      86.9E24.60B(E2)(W.u.)=0.93 5, α=4.60 6, α(K)=1.561 22, α(L)=2.341 33, α(M)=0.562 8, α(N)=0.1258 18, α(O)=0.01502 21, α(P)=6.48E-5 9
   2969.6 4-,5-      115.6 3 M11.582α=1.582 25, α(K)=1.332 21, α(L)=0.1956 31, α(M)=0.0430 7, α(N)=0.00994 16, α(O)=0.001454 23, α(P)=8.30×10-5 13
   3115.4 6-      376.1 5 M10.0621α=0.0621 9, α(K)=0.0525 8, α(L)=0.00751 11, α(M)=0.001644 24, α(N)=0.000380 5, α(O)=5.58×10-5 8, α(P)=3.23E-6 5
   3279.6 5-,6-      164.1 3 M10.588α=0.588 9, α(K)=0.495 7, α(L)=0.0724 11, α(M)=0.01589 24, α(N)=0.00368 5, α(O)=0.000538 8, α(P)=3.08×10-5 5
   3323.2 (5,6)-      353.6 4 M10.0730α=0.0730 10, α(K)=0.0617 9, α(L)=0.00884 13, α(M)=0.001937 28, α(N)=0.000448 6, α(O)=6.58×10-5 9, α(P)=3.80E-6 5
   3980.7 11-     1061.1E11.12×10-3α=1.12×10-3 2, α(K)=0.000957 13, α(L)=0.0001266 18, α(M)=2.75E-5 4, α(N)=6.34E-6 9, α(O)=9.26E-7 13, α(P)=5.34E-8 7
   4477.2 12-      496.5M10.0302α=0.0302 4, α(K)=0.0256 4, α(L)=0.00363 5, α(M)=0.000794 11, α(N)=0.0001837 26, α(O)=2.70×10-5 4, α(P)=1.566E-6 22
   4851.4 12+     1932.3E21.10×10-3α=1.10×10-3 2, α(K)=0.000724 10, α(L)=9.82E-5 14, α(M)=2.136E-5 30, α(N)=4.93E-6 7, α(O)=7.23E-7 10, α(P)=4.18E-8 6
   5410.5 14+      559.1E20.01139α=0.01139 16, α(K)=0.00927 13, α(L)=0.001659 23, α(M)=0.000372 5, α(N)=8.52×10-5 12, α(O)=1.185E-5 17, α(P)=5.23E-7 7
   5522.9 14-     1045.7E20.00277α=0.00277 4, α(K)=0.002335 33, α(L)=0.000344 5, α(M)=7.56×10-5 11, α(N)=1.742E-5 24, α(O)=2.514E-6 35, α(P)=1.348E-7 19
   5772.4 15-      361.8E10.01087α=0.01087, α(K)=0.00923 13, α(L)=0.001291 18, α(M)=0.000281 4, α(N)=6.47×10-5 9, α(O)=9.27E-6 13, α(P)=4.94E-7 7
   5985.5 16-      462.9E20.01857α=0.01857 26, α(K)=0.01484 21, α(L)=0.00291 4, α(M)=0.000657 9, α(N)=0.0001501 21, α(O)=2.057×10-5 29, α(P)=8.24E-7 12
   6264.5 17-      279.4M10.1366α=0.1366 19, α(K)=0.1153 16, α(L)=0.01664 23, α(M)=0.00365 5, α(N)=0.000844 12, α(O)=0.0001238 17, α(P)=7.12×10-6 10
17-      491.4E20.01586α=0.01586 22, α(K)=0.01274 18, α(L)=0.002423 34, α(M)=0.000546 8, α(N)=0.0001249 17, α(O)=1.720×10-5 24, α(P)=7.12E-7 10
E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   7434.6 (18+)     1170.6(E1)9.49×10-4α=9.49×10-4 13, α(K)=0.000801 11, α(L)=0.0001056 15, α(M)=2.289E-5 32, α(N)=5.28E-6 7, α(O)=7.73E-7 11, α(P)=4.48E-8 6

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.00+ 3.3 m 2 
% ε = 100
rms charge radius <r2>1/2=5.05 fm 24 (2013An02); others: see 2000Ga58.
   1677.32+   E(level): From (HI,xnγ) dataset.
   1687.53-   E(level): From (HI,xnγ) dataset.
   2348.35-   E(level): From (HI,xnγ) dataset.
   2426.74+   E(level): From (HI,xnγ) dataset.
   2731.06+   E(level): From (HI,xnγ) dataset.
   2738.17-   E(level): From (HI,xnγ) dataset.
   2832.28+ 65 ns 10  E(level): From (HI,xnγ) dataset.

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