ADOPTED LEVELS, GAMMAS for 148Ho

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

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-6510 keV 80S(n)= 10310 keV 80S(p)= 1080 keV 80Q(α)= 1950 keV 90
Reference: 2021WA16

References:
  A  148Ho IT decay (2.36 MS)  B  148Er ε decay (4.6 S)
  C  149Tm εp decay (0.9 S)  D  112Sn(40Ar,p3nγ)

General Comments:

Mass measurement (Penning trap): 2007Ra37

Q-value: S(2n)=22900 80, S(2p)=4.81×103 10, Q(εp)=5460 80 (2021Wa16)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
       0.0 B   (1+) 2.2 s 11 
% ε = 100
     
       0.0+XA  D (5)- 9.59 s 15 
% ε = 100
% εp = 0.08 1
     
      32.61+X 23 A  D (5-)       32.3 7 
  100

       0.0+X
(5)-
     141.13+X 14 A  D (6-)      108.5 2 
   141.5 4 
  100 7 
   45 8 


      32.61+X
       0.0+X
(5-)
(5)-
     141.70 10  B        141.7 1 
  100

       0.0
(1+)
     244.00 10  B        244.0 1 
  100

       0.0
(1+)
     315.30 10  B        315.3 1 
  100

       0.0
(1+)
     321.32+X 10 A  D (7)-      180.2 1 
   321.3 1 
   47 2 
  100 3 
[M1+E2]
E2
     141.13+X
       0.0+X
(6-)
(5)-
     429.3 5  B        287.6 4 
  100

     141.70

     512.7 5  B        268.7 5 
  100

     244.00

     524.7 10  B        383 1 
  100

     141.70

     609.5 3  B        609.5 3 
  100

       0.0
(1+)
     694.42+X 14 A  D (10)+ 2.36 ms 6 
% IT = 100
   373.1 1 
  100
E3
     321.32+X
(7)-
     924.9 4  B        924.9 4 
  100

       0.0
(1+)
    1311.8 3  B       1311.8 3 
  100

       0.0
(1+)
    1636.8 5  B       1027.3 4 
  100

     609.5

    1646.2+X 10    D (11)      951.8
  100
D,Q
     694.42+X
(10)+
    2121.8 5  B       2121.8 5 
  100

       0.0
(1+)
    2191.4+X 15    D (12)      545.2
  100
D
    1646.2+X
(11)
    2735.7+X 18    D (13)      544.3
  100
D
    2191.4+X
(12)
    2885.7+X 20    D (14)      150.0
  100
D
    2735.7+X
(13)
    3040.5+X 23    D (15)      154.8
  100

    2885.7+X
(14)
    3068.6+X 23    D (15)      182.9
  100
D+Q
    2885.7+X
(14)
    3168.9+X 23    D (15)      283.2
  100
D+Q
    2885.7+X
(14)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
    3363.8+X 25    D (17)      295.2
  100
Q
    3068.6+X
(15)
    3379.8+X 25    D (16)      339.3
  100

    3040.5+X
(15)
  3790+X 3    D (18)      426.0
  100

    3363.8+X
(17)

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

M(γ): From measured conversion coefficients and angular distribution ratio in 112Sn(40Ar,p3nγ) dataset

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - γ sequence based on J=(11)
    1646.2+X 10  (11)        
    2191.4+X 15  (12)        
    2735.7+X 18  (13)      544.3
  100
D
    2191.4+X
(12)
    2885.7+X 20  (14)      150.0
  100
D
    2735.7+X
(13)
    3068.6+X 23  (15)      182.9
  100
D+Q
    2885.7+X
(14)
    3168.9+X 23  (15)      283.2
  100
D+Q
    2885.7+X
(14)
    3363.8+X 25  (17)      295.2
  100
Q
    3068.6+X
(15)
  3790+X 3  (18)      426.0
  100

    3363.8+X
(17)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
     321.32+X (7)-      180.2 1 [M1+E2]0.42α=0.42 7, α(K)=0.32 10, α(L)=0.080 19, α(M)=0.018 5, α(N)=0.0042 11, α(O)=0.00056 10, α(P)=1.8×10-5 8
(7)-      321.3 1 E20.0543α=0.0543 8, α(K)=0.0408 6, α(L)=0.01045 15, α(M)=0.002418 34, α(N)=0.000552 8, α(O)=7.23×10-5 10, α(P)=2.137E-6 30
     694.42+X (10)+ 2.36 ms 6 
% IT = 100
   373.1 1 E30.1229B(E3)(W.u.)=0.350 9, α=0.1229 17, α(K)=0.0759 11, α(L)=0.0361 5, α(M)=0.00867 12, α(N)=0.001978 28, α(O)=0.0002500 35, α(P)=4.57E-6 6

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      32.61+X(5-)   Possible configuration=πh11/2~#νd3/2-1.
     141.13+X(6-)   Possible configuration=πh11/2~#νd3/2-1.
    1646.2+X(11)   E(level): If positive parity, then possible member of configuration= (πh11/23)27/2~#νd5/2-1.
    2191.4+X(12)   E(level): If positive parity, then possible member of configuration= (πh11/23)27/2~#νd5/2-1.
E(level): If positive parity, then possible member of configuration= (πh11/23)27/2~#νd5/2-1.
    2735.7+X(13)   E(level): If positive parity, then possible member of configuration= (πh11/23)27/2~#νd5/2-1.
E(level): If positive parity, then possible member of configuration= (πh11/23)27/2~#νd5/2-1.
    2885.7+X(14)   E(level): If positive parity, then possible member of configuration= (πh11/23)27/2~#νd5/2-1.
    3068.6+X(15)   E(level): If positive parity, then possible member of configuration= (πh11/23)27/2~#νd5/2-1.
    3168.9+X(15)   E(level): If positive parity, then possible member of configuration= (πh11/23)27/2~#νd5/2-1.

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Additional Gamma Comments:

E(level)E(gamma)Comments
     321.32+X     321.3M(γ): from ce data (2010Ko12)
     694.42+X     373.1M(γ): ce data in 2010Ko12

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