ADOPTED LEVELS, GAMMAS for 154Tm

Author: C. W. Reich |  Citation: Nucl. Data Sheets 110, 2257 (2009) |  Cutoff date: 1-May-2008 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-4495 keV 14S(n)= 8525 keV 19S(p)= 1248 keV 17Q(α)= 5094 keV 3
S(2n)= 1.885×104 keV 19S(2p)= 5400 keV 17Q(EC)= 8178 keV 15Q(ECp)= 3296 keV 15
Reference: 2017WA10

References:
  A  144Sm(14N,4nγ)  B  154Yb ε decay
  C  158Lu α decay 

General Comments:

Data are primarily from 144Sm(14N,4nγ), with minor additions from 154Yb ε decay, 154Tm α decay (8.1 s), and 154Tm α decay (3.30 s).










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0 BC (2-) 8.1 s 3 
% ε = 46 5
% α = 54 5
     
   133.2 2   C 1+      133.2 2 
  100
E1
     0
(2-)
   0+XA   9+ 3.30 s 7 
% IT = ?
% ε = 42 5
% α = 58 5
     
   266.10+X 18 A   10+      266.1 2 
  100

   0+X
9+
   745.11+X 10 A   11+      745.1 1 
  100
E2
   0+X
9+
   751.79+X 10 A   11+      751.8 1 
  100
E2
   0+X
9+
  1035.09+X 16 A   12+      290.0 2 
   769.0 3 
   65
  100


   745.11+X
   266.10+X
11+
10+
  1134.98+X 13 A   13+      383.2 1 
  100
E2
   751.79+X
11+
  1323.33+X 13 A   13+      578.2 1 
  100
E2
   745.11+X
11+
  1674.05+X 14 A   14+      350.7 1 
   639.0 2 
  100
  <98
M1+E2

  1323.33+X
  1035.09+X
13+
12+
  1814.81+X 19 A   15+      140.6 3 
   679.6 3 
 
  100

E2
  1674.05+X
  1134.98+X
14+
13+
  2145.25+X 16 A   16+      471.2 1 
  100
E2
  1674.05+X
14+
  2424.54+X 17 A   (15)+      279.3 1 
   609.6 3 ?
  1289.9 3 
  100
   10
   25
M1+E2


  2145.25+X
  1814.81+X
  1134.98+X
16+
15+
13+
  2453.99+X 25 A   (16)+      639.2 2 
  100
M1+E2
  1814.81+X
15+
  2514.42+X 19 A   (16)+       89.9 1 
   699.2 3 
  100
   21
M1+E2

  2424.54+X
  1814.81+X
(15)+
15+
  2616.73+X 20 A   (17)+      102.3 1 
   802.0 3 
  100
   62
M1+E2

  2514.42+X
  1814.81+X
(16)+
15+
  2742.64+X 22 A   (19)+      125.9 1 
  100
E2
  2616.73+X
(17)+
  2750.4+X 3 A   (17)+      296.4 2 
   935.6 3 
   80
  100
M1+E2
E2
  2453.99+X
  1814.81+X
(16)+
15+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2881.6+X 3 A        138.9 2 
  100

  2742.64+X
(19)+
  3240.4+X 3 A        358.9 2 
  100

  2881.6+X

  3410.0+X 3 A   (19)+      659.6 2 
  100
M1+E2
  2750.4+X
(17)+
  3420.9+X 3 A   (20)+      678.1 3 
  100
M1+E2
  2742.64+X
(19)+
  3471.6+X 4 A   (19)+      721.3 3 
  100
E2
  2750.4+X
(17)+
  3740.4+X 3 A   (20)+      268.9 3 
   330.5 2 
  100
   88
M1+E2
M1+E2
  3471.6+X
  3410.0+X
(19)+
(19)+
  4057.0+X 3 A   (22+)      636.2 2 
  1175.3 3 
  100
   60
E2

  3420.9+X
  2881.6+X
(20)+

  4090.8+X 3 A        669.6 3 
  1348.2 3 
   22
  100


  3420.9+X
  2742.64+X
(20)+
(19)+
  4486.3+X 3 A   (23)+      395.4 2 
   429.3 2 
   61
  100

M1+E2
  4090.8+X
  4057.0+X

(22+)
  4498.1+X 3 A   (21,22)+      757.7 2 
  1257.7 3 
  100
   62
M1+E2

  3740.4+X
  3240.4+X
(20)+

  4667.9+X 5 A        577.1 3 
  100

  4090.8+X

  4865.7+X 5 A        197.8 2 
  100

  4667.9+X

  4996.8+X 3 A   (23,24)+      498.7 1 
   510.4 3 
  100
   64
E2

  4498.1+X
  4486.3+X
(21,22)+
(23)+
  5208.8+X 4 A   (25,26)+      212.0 1 
  100
E2
  4996.8+X
(23,24)+
  5974.3+X 4 A   (27,28)+      765.5 2 
  100

  5208.8+X
(25,26)+
  6141.2+X 4 A   (28,29)-      166.9 1 
  100
E1
  5974.3+X
(27,28)+

E(level): For the levels above the 9+ level, the values are from a least-squares fit to the γ energies as given in the heavy-ion data set.

Jπ(level): Above the 9+ level, the Jπ assignments are from the heavy-ion studies of 2002Fo07 and are based on the γ multipolarities and the expected level sequences. No specific arguments are given for the Jπ values of the levels above this one.

M(γ): From conversion-electron data in the respective studies.

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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 cascade based on 9+ level
   0+X 9+ 3.30 s 7 
% IT = ?
% ε = 42 5
% α = 58 5 		     
   751.79+X 10  11+      751.8 1 
  100
E2
   0+X
9+
  1134.98+X 13  13+        
  1814.81+X 19  15+      140.6 3 
   679.6 3 
 
  100

E2
  1674.05+X
  1134.98+X
14+
13+
  2750.4+X 3  (17)+      296.4 2 
   935.6 3 
   80
  100
M1+E2
E2
  2453.99+X
  1814.81+X
(16)+
15+
  3471.6+X 4  (19)+      721.3 3 
  100
E2
  2750.4+X
(17)+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - γ cascade based on (21,22)+ level
  4498.1+X 3  (21,22)+        
  4996.8+X 3  (23,24)+      498.7 1 
   510.4 3 
  100
   64
E2

  4498.1+X
  4486.3+X
(21,22)+
(23)+
  5208.8+X 4  (25,26)+        
  5974.3+X 4  (27,28)+      765.5 2 
  100

  5208.8+X
(25,26)+
  6141.2+X 4  (28,29)-      166.9 1 
  100
E1
  5974.3+X
(27,28)+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - γ cascade based on 10+ level
   266.10+X 18  10+        
  1035.09+X 16  12+      290.0 2 
   769.0 3 
   65
  100


   745.11+X
   266.10+X
11+
10+
  1674.05+X 14  14+        
  2145.25+X 16  16+      471.2 1 
  100
E2
  1674.05+X
14+

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   133.2 1+      133.2 2 E10.1562α=0.1562

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0(2-) 8.1 s 3 
% ε = 46 5
% α = 54 5
Q=+0.4 9, μ=-1.14 2
Δ<r2>(169Tm-154Tm(J=2))=1.486 fm2 19 (2000Ba16).
E(level): Δ<r2>(169Tm-154Tm(J=2))=1.486 fm2 19 (2000Ba16).
   0+X9+ 3.30 s 7 
% IT = ?
% ε = 42 5
% α = 58 5
Q=-0.2 4, μ=+5.91 5
Δ<r2>(169Tm-154Tm(J=9))=1.522 fm2 15 (2000Ba16).
E(level): Δ<r2>(169Tm-154Tm(J=9))=1.522 fm2 15 (2000Ba16). γ cascade based on 9+ level.
   266.10+X10+   E(level): γ cascade based on 10+ level.
   751.79+X11+   E(level): γ cascade based on 9+ level.
  1035.09+X12+   E(level): γ cascade based on 10+ level.
  1134.98+X13+   E(level): γ cascade based on 9+ level.
  1674.05+X14+   E(level): γ cascade based on 10+ level.
  1814.81+X15+   E(level): γ cascade based on 9+ level.
  2145.25+X16+   E(level): γ cascade based on 10+ level.
  2750.4+X(17)+   E(level): γ cascade based on 9+ level.
  3471.6+X(19)+   E(level): γ cascade based on 9+ level.
  4498.1+X(21,22)+   E(level): γ cascade based on (21,22)+ level.
  4996.8+X(23,24)+   E(level): γ cascade based on (21,22)+ level.
  5208.8+X(25,26)+   E(level): γ cascade based on (21,22)+ level.
  5974.3+X(27,28)+   E(level): γ cascade based on (21,22)+ level.
  6141.2+X(28,29)-   E(level): γ cascade based on (21,22)+ level.

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