ADOPTED LEVELS, GAMMAS for 169W

Author: M. Shamsuzzoha Basunia |  Citation: Nucl. Data Sheets 209, 1 (2026) |  Cutoff date: 1-Oct-2025 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-6509 keV 19S(n)= 8096 keV 20S(p)= 3.81×103 keV 3Q(α)= 4.29×103 keV 3
Reference: 2021WA16

References:
  A  169Re ε decay (8.1 S)  B  173Os α decay
  C  154Gd(20Ne,5nγ) 

General Comments:

Identification: cross bombardments, excitation functions, and x-ray coincidence data for 36Ar, 40Ar bombardments of Cs, Ba, La, and Pr (1987ScZL).










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
       0.0 B  (5/2-) 75 s 6 
% ε = 100
     
       0.0+XA C (9/2-)        
       0.0+Y  C (13/2+)        
     145.3+X 2 A C (11/2-)     145.3 2 
  100
(M1+E2)
       0.0+X
(9/2-)
     208.6+Y 3   C (17/2+)     208.6 3 
  100
(E2)
       0.0+Y
(13/2+)
     327.1+X 2   C (13/2-)     181.7 3 
  327.1 3 
   65 27 
  100 40 
(M1+E2)
(E2)
     145.3+X
       0.0+X
(11/2-)
(9/2-)
     576.0+Y 4   C (21/2+)     367.4 3 
  100
(E2)
     208.6+Y
(17/2+)
     734.3+X 4   C (17/2-)     407.2 3 
  100
(E2)
     327.1+X
(13/2-)
    1063.6+Y 5   C (25/2+)     487.6 3 
  100
(E2)
     576.0+Y
(21/2+)
    1176.0+X 5   C (21/2-)     441.7 3 
  100
(E2)
     734.3+X
(17/2-)
    1422.6+Y 6   C (23/2-)     846.6 6 
  100

     576.0+Y
(21/2+)
    1615.1+X 6   C (25/2-)     439.1 3 
  100
(E2)
    1176.0+X
(21/2-)
    1639.0+Y 6   C (29/2+)     575.4 3 
  100
(E2)
    1063.6+Y
(25/2+)
    1759.1+Y 6   C (27/2-)     336.5 3 
  695.5 6 
  100 21 
  <74
(E2)

    1422.6+Y
    1063.6+Y
(23/2-)
(25/2+)
    2019.2+X 7   C (29/2-)     404.1 3 
  100
(E2)
    1615.1+X
(25/2-)
    2160.9+Y 7   C (31/2-)     401.8 3 
  100
(E2)
    1759.1+Y
(27/2-)
    2269.4+Y 7   C (33/2+)     630.4 3 
  100
(E2)
    1639.0+Y
(29/2+)
    2434.5+X 7   C (33/2-)     415.3 3 
  100
(E2)
    2019.2+X
(29/2-)
    2597.8+Y 8   C (35/2-)     436.9 3 
  100
(E2)
    2160.9+Y
(31/2-)
    2893.4+Y 7   C (37/2+)     624.0 3 
  100
(E2)
    2269.4+Y
(33/2+)
    2899.8+X 8   C (37/2-)     465.3 3 
  100
(E2)
    2434.5+X
(33/2-)
    3099.7+Y 8   C (39/2-)     501.9 3 
  100
(E2)
    2597.8+Y
(35/2-)
    3452.7+X 8   C (41/2-)     552.9 3 
  100
(E2)
    2899.8+X
(37/2-)
    3475.2+Y 8   C (41/2+)     581.8 3 
  100
(E2)
    2893.4+Y
(37/2+)
    3678.3+Y 9   C (43/2-)     578.6 3 
  100
(E2)
    3099.7+Y
(39/2-)
    4088.9+X 9   C (45/2-)     636.2 3 
  100
(E2)
    3452.7+X
(41/2-)
    4116.1+Y 9   C (45/2+)     640.9 3 
  100
(E2)
    3475.2+Y
(41/2+)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
    4324.7+Y 9   C (47/2-)     646.4 3 
  100
(E2)
    3678.3+Y
(43/2-)
    4790.5+X 11   C (49/2-)     701.6 6 
  100
[E2]
    4088.9+X
(45/2-)
    4849.4+Y 9   C (49/2+)     733.3 3 
  100
(E2)
    4116.1+Y
(45/2+)
    5027.8+Y 11   C (51/2-)     703.1 6 
  100
[E2]
    4324.7+Y
(47/2-)
    5546.2+X 12   C (53/2-)     755.7 6 
  100
[E2]
    4790.5+X
(49/2-)
    5671.3+Y 10   C (53/2+)     821.9 3 
  100
(E2)
    4849.4+Y
(49/2+)
    5784.0+Y 13   C (55/2-)     756.2 6 
  100
[E2]
    5027.8+Y
(51/2-)
    6354.9+X 14   C (57/2-)     808.7 6 
  100
[E2]
    5546.2+X
(53/2-)
    6568.4+Y 10   C (57/2+)     897.1 3 
  100
(E2)
    5671.3+Y
(53/2+)
    6594.9+Y 14   C (59/2-)     810.9 6 
  100

    5784.0+Y
(55/2-)
  7224+X?  C (61/2-)     869?
  100

    6354.9+X
(57/2-)

E(level): From least-squares fit to Eγ. 1985Re06 estimate the energy offset "y " to be <100 keV.

Jπ(level): From coincidence data, rotational structure, and γ-ray multipolarities in 154Gd(20Ne,5nγ), except where noted.

E(γ): From 154Gd(20Ne,5nγ), except as noted.

I(γ): Relative photon branching from each level; intensities are from 154Gd(20Ne,5nγ).

M(γ): From γ(θ) in 154Gd(20Ne,5nγ), except as noted, assigning Δπ=(no) for intraband transitions.

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - 5/2[523] band.
       0.0 (5/2-) 75 s 6 
% ε = 100
     
       0.0+X (9/2-)        
     327.1+X 2  (13/2-)        
     734.3+X 4  (17/2-)     407.2 3 
  100
(E2)
     327.1+X
(13/2-)
    1176.0+X 5  (21/2-)     441.7 3 
  100
(E2)
     734.3+X
(17/2-)
    1615.1+X 6  (25/2-)     439.1 3 
  100
(E2)
    1176.0+X
(21/2-)
    2019.2+X 7  (29/2-)     404.1 3 
  100
(E2)
    1615.1+X
(25/2-)
    2434.5+X 7  (33/2-)     415.3 3 
  100
(E2)
    2019.2+X
(29/2-)
    2899.8+X 8  (37/2-)     465.3 3 
  100
(E2)
    2434.5+X
(33/2-)
    3452.7+X 8  (41/2-)     552.9 3 
  100
(E2)
    2899.8+X
(37/2-)
    4088.9+X 9  (45/2-)     636.2 3 
  100
(E2)
    3452.7+X
(41/2-)
    4790.5+X 11  (49/2-)     701.6 6 
  100
[E2]
    4088.9+X
(45/2-)
    5546.2+X 12  (53/2-)     755.7 6 
  100
[E2]
    4790.5+X
(49/2-)
    6354.9+X 14  (57/2-)     808.7 6 
  100
[E2]
    5546.2+X
(53/2-)
  7224+X (61/2-)     869?
  100

    6354.9+X
(57/2-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - i13/2 π=+ band.
       0.0+Y (13/2+)        
     208.6+Y 3  (17/2+)        
     576.0+Y 4  (21/2+)        
    1063.6+Y 5  (25/2+)     487.6 3 
  100
(E2)
     576.0+Y
(21/2+)
    1639.0+Y 6  (29/2+)     575.4 3 
  100
(E2)
    1063.6+Y
(25/2+)
    2269.4+Y 7  (33/2+)     630.4 3 
  100
(E2)
    1639.0+Y
(29/2+)
    2893.4+Y 7  (37/2+)     624.0 3 
  100
(E2)
    2269.4+Y
(33/2+)
    3475.2+Y 8  (41/2+)     581.8 3 
  100
(E2)
    2893.4+Y
(37/2+)
    4116.1+Y 9  (45/2+)     640.9 3 
  100
(E2)
    3475.2+Y
(41/2+)
    4849.4+Y 9  (49/2+)     733.3 3 
  100
(E2)
    4116.1+Y
(45/2+)
    5671.3+Y 10  (53/2+)     821.9 3 
  100
(E2)
    4849.4+Y
(49/2+)
    6568.4+Y 10  (57/2+)     897.1 3 
  100
(E2)
    5671.3+Y
(53/2+)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - π=(-) side band.
    1422.6+Y 6  (23/2-)        
    1759.1+Y 6  (27/2-)        
    2160.9+Y 7  (31/2-)        
    2597.8+Y 8  (35/2-)     436.9 3 
  100
(E2)
    2160.9+Y
(31/2-)
    3099.7+Y 8  (39/2-)     501.9 3 
  100
(E2)
    2597.8+Y
(35/2-)
    3678.3+Y 9  (43/2-)     578.6 3 
  100
(E2)
    3099.7+Y
(39/2-)
    4324.7+Y 9  (47/2-)     646.4 3 
  100
(E2)
    3678.3+Y
(43/2-)
    5027.8+Y 11  (51/2-)     703.1 6 
  100
[E2]
    4324.7+Y
(47/2-)
    5784.0+Y 13  (55/2-)     756.2 6 
  100
[E2]
    5027.8+Y
(51/2-)
    6594.9+Y 14  (59/2-)     810.9 6 
  100

    5784.0+Y
(55/2-)

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
     145.3+X (11/2-)     145.3 2 (M1+E2)1.29α=1.29 35, α(K)=0.9 5, α(L)=0.32 10, α(M)=0.077 28, α(N)=0.018 7, α(O)=0.0027 8, α(P)=8.E-5 5
     208.6+Y (17/2+)     208.6 3 (E2)0.268α=0.268 4, α(K)=0.1507 22, α(L)=0.0890 14, α(M)=0.02211 34, α(N)=0.00523 8, α(O)=0.000740 11, α(P)=1.203×10-5 17
     327.1+X (13/2-)     181.7 3 (M1+E2)0.65α=0.65 22, α(K)=0.47 25, α(L)=0.137 22, α(M)=0.033 7, α(N)=0.0078 16, α(O)=0.00117 15, α(P)=4.5×10-5 28
(13/2-)     327.1 3 (E2)0.0659α=0.0659 9, α(K)=0.0455 6, α(L)=0.01556 22, α(M)=0.00378 5, α(N)=0.000898 13, α(O)=0.0001316 19, α(P)=3.96×10-6 6
     576.0+Y (21/2+)     367.4 3 (E2)0.0473α=0.0473 7, α(K)=0.0338 5, α(L)=0.01032 15, α(M)=0.00249 4, α(N)=0.000593 8, α(O)=8.77×10-5 13, α(P)=2.99E-6 4
     734.3+X (17/2-)     407.2 3 (E2)0.0357α=0.0357 5, α(K)=0.0262 4, α(L)=0.00729 10, α(M)=0.001749 25, α(N)=0.000416 6, α(O)=6.22×10-5 9, α(P)=2.346E-6 33
    1063.6+Y (25/2+)     487.6 3 (E2)0.02235α=0.02235 31, α(K)=0.01701 24, α(L)=0.00410 6, α(M)=0.000974 14, α(N)=0.0002324 33, α(O)=3.53×10-5 5, α(P)=1.550E-6 22
    1176.0+X (21/2-)     441.7 3 (E2)0.0288α=0.0288 4, α(K)=0.02149 30, α(L)=0.00559 8, α(M)=0.001336 19, α(N)=0.000318 5, α(O)=4.79×10-5 7, α(P)=1.942E-6 27
    1615.1+X (25/2-)     439.1 3 (E2)0.0292α=0.0292 4, α(K)=0.02180 31, α(L)=0.00570 8, α(M)=0.001362 19, α(N)=0.000324 5, α(O)=4.88×10-5 7, α(P)=1.969E-6 28
    1639.0+Y (29/2+)     575.4 3 (E2)0.01493α=0.01493 21, α(K)=0.01166 16, α(L)=0.002515 35, α(M)=0.000592 8, α(N)=0.0001414 20, α(O)=2.176×10-5 31, α(P)=1.073E-6 15
    1759.1+Y (27/2-)     336.5 3 (E2)0.0607α=0.0607 9, α(K)=0.0423 6, α(L)=0.01406 20, α(M)=0.00341 5, α(N)=0.000810 12, α(O)=0.0001190 17, α(P)=3.69×10-6 5
    2019.2+X (29/2-)     404.1 3 (E2)0.0364α=0.0364 5, α(K)=0.0267 4, α(L)=0.00748 11, α(M)=0.001795 26, α(N)=0.000427 6, α(O)=6.38×10-5 9, α(P)=2.388E-6 34
    2160.9+Y (31/2-)     401.8 3 (E2)0.0370α=0.0370 5, α(K)=0.0271 4, α(L)=0.00762 11, α(M)=0.001830 26, α(N)=0.000436 6, α(O)=6.50×10-5 9, α(P)=2.421E-6 34
    2269.4+Y (33/2+)     630.4 3 (E2)0.01207α=0.01207 17, α(K)=0.00954 13, α(L)=0.001950 27, α(M)=0.000457 6, α(N)=0.0001092 15, α(O)=1.693×10-5 24, α(P)=8.81E-7 12
    2434.5+X (33/2-)     415.3 3 (E2)0.0339α=0.0339 5, α(K)=0.02495 35, α(L)=0.00683 10, α(M)=0.001637 23, α(N)=0.000390 6, α(O)=5.83×10-5 8, α(P)=2.240E-6 32
    2597.8+Y (35/2-)     436.9 3 (E2)0.0296α=0.0296 4, α(K)=0.02207 31, α(L)=0.00579 8, α(M)=0.001384 20, α(N)=0.000330 5, α(O)=4.96×10-5 7, α(P)=1.992E-6 28
    2893.4+Y (37/2+)     624.0 3 (E2)0.01236α=0.01236 17, α(K)=0.00975 14, α(L)=0.002005 28, α(M)=0.000470 7, α(N)=0.0001123 16, α(O)=1.740×10-5 24, α(P)=9.01E-7 13
    2899.8+X (37/2-)     465.3 3 (E2)0.02517α=0.02517 35, α(K)=0.01898 27, α(L)=0.00474 7, α(M)=0.001129 16, α(N)=0.000269 4, α(O)=4.07×10-5 6, α(P)=1.723E-6 24
    3099.7+Y (39/2-)     501.9 3 (E2)0.02079α=0.02079 29, α(K)=0.01590 22, α(L)=0.00376 5, α(M)=0.000891 13, α(N)=0.0002125 30, α(O)=3.23×10-5 5, α(P)=1.452E-6 20
    3452.7+X (41/2-)     552.9 3 (E2)0.01642α=0.01642 23, α(K)=0.01275 18, α(L)=0.00282 4, α(M)=0.000665 9, α(N)=0.0001588 22, α(O)=2.437×10-5 34, α(P)=1.171E-6 16
    3475.2+Y (41/2+)     581.8 3 (E2)0.01454α=0.01454 20, α(K)=0.01137 16, α(L)=0.002437 34, α(M)=0.000573 8, α(N)=0.0001369 19, α(O)=2.110×10-5 30, α(P)=1.048E-6 15
    3678.3+Y (43/2-)     578.6 3 (E2)0.01473α=0.01473 21, α(K)=0.01151 16, α(L)=0.002476 35, α(M)=0.000582 8, α(N)=0.0001391 20, α(O)=2.143×10-5 30, α(P)=1.060E-6 15
    4088.9+X (45/2-)     636.2 3 (E2)0.01182α=0.01182 17, α(K)=0.00935 13, α(L)=0.001902 27, α(M)=0.000445 6, α(N)=0.0001064 15, α(O)=1.651×10-5 23, α(P)=8.64E-7 12
    4116.1+Y (45/2+)     640.9 3 (E2)0.01162α=0.01162 16, α(K)=0.00920 13, α(L)=0.001865 26, α(M)=0.000436 6, α(N)=0.0001043 15, α(O)=1.619×10-5 23, α(P)=8.51E-7 12
    4324.7+Y (47/2-)     646.4 3 (E2)0.01140α=0.01140 16, α(K)=0.00903 13, α(L)=0.001822 26, α(M)=0.000426 6, α(N)=0.0001019 14, α(O)=1.582×10-5 22, α(P)=8.35E-7 12
E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
    4790.5+X (49/2-)     701.6 6 [E2]0.00949α=0.00949 13, α(K)=0.00759 11, α(L)=0.001466 21, α(M)=0.000341 5, α(N)=8.17×10-5 12, α(O)=1.277E-5 18, α(P)=7.03E-7 10
    4849.4+Y (49/2+)     733.3 3 (E2)0.00861α=0.00861 12, α(K)=0.00691 10, α(L)=0.001309 18, α(M)=0.000304 4, α(N)=7.28×10-5 10, α(O)=1.141E-5 16, α(P)=6.41E-7 9
    5027.8+Y (51/2-)     703.1 6 [E2]0.00944α=0.00944 13, α(K)=0.00755 11, α(L)=0.001458 21, α(M)=0.000340 5, α(N)=8.12×10-5 12, α(O)=1.270E-5 18, α(P)=7.00E-7 10
    5546.2+X (53/2-)     755.7 6 [E2]0.00807α=0.00807 11, α(K)=0.00649 9, α(L)=0.001212 17, α(M)=0.000281 4, α(N)=6.74×10-5 10, α(O)=1.058E-5 15, α(P)=6.03E-7 8
    5671.3+Y (53/2+)     821.9 3 (E2)0.00674α=0.00674 9, α(K)=0.00547 8, α(L)=0.000985 14, α(M)=0.0002276 32, α(N)=5.45×10-5 8, α(O)=8.61E-6 12, α(P)=5.08E-7 7
    5784.0+Y (55/2-)     756.2 6 [E2]0.00806α=0.00806 11, α(K)=0.00649 9, α(L)=0.001210 17, α(M)=0.000281 4, α(N)=6.72×10-5 10, α(O)=1.056E-5 15, α(P)=6.02E-7 8
    6354.9+X (57/2-)     808.7 6 [E2]0.00698α=0.00698 10, α(K)=0.00565 8, α(L)=0.001025 14, α(M)=0.0002370 33, α(N)=5.68×10-5 8, α(O)=8.95E-6 13, α(P)=5.25E-7 7
    6568.4+Y (57/2+)     897.1 3 (E2)0.00562α=0.00562 8, α(K)=0.00458 6, α(L)=0.000799 11, α(M)=0.0001840 26, α(N)=4.41×10-5 6, α(O)=7.00E-6 10, α(P)=4.26E-7 6

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
       0.0(5/2-) 75 s 6 
% ε = 100
%ε+%β+: only ε decay has been observed. %α≈0.01 can be estimated from extrapolation of log T1/2(α) versus log Q(α) for 159W, 161W, 163W.
E(level): %ε+%β+: only ε decay has been observed. %α≈0.01 can be estimated from extrapolation of log T1/2(α) versus log Q(α) for 159W, 161W, 163W. 5/2[523] band.
       0.0+X(9/2-)   E(level): 5/2[523] band.
       0.0+Y(13/2+)   E(level): i13/2 π=+ band.
     208.6+Y(17/2+)   E(level): i13/2 π=+ band.
     327.1+X(13/2-)   E(level): 5/2[523] band.
     576.0+Y(21/2+)   E(level): i13/2 π=+ band.
     734.3+X(17/2-)   E(level): 5/2[523] band.
    1063.6+Y(25/2+)   E(level): i13/2 π=+ band.
    1176.0+X(21/2-)   E(level): 5/2[523] band.
    1422.6+Y(23/2-)   E(level): π=(-) side band.
    1615.1+X(25/2-)   E(level): 5/2[523] band.
    1639.0+Y(29/2+)   E(level): i13/2 π=+ band.
    1759.1+Y(27/2-)   E(level): π=(-) side band.
    2019.2+X(29/2-)   E(level): 5/2[523] band.
    2160.9+Y(31/2-)   E(level): π=(-) side band.
    2269.4+Y(33/2+)   E(level): i13/2 π=+ band.
    2434.5+X(33/2-)   E(level): 5/2[523] band.
    2597.8+Y(35/2-)   E(level): π=(-) side band.
    2893.4+Y(37/2+)   E(level): i13/2 π=+ band.
    2899.8+X(37/2-)   E(level): 5/2[523] band.
    3099.7+Y(39/2-)   E(level): π=(-) side band.
    3452.7+X(41/2-)   E(level): 5/2[523] band.
    3475.2+Y(41/2+)   E(level): i13/2 π=+ band.
    3678.3+Y(43/2-)   E(level): π=(-) side band.
    4088.9+X(45/2-)   E(level): 5/2[523] band.
E(level)Jπ(level)T1/2(level)Comments
    4116.1+Y(45/2+)   E(level): i13/2 π=+ band.
    4324.7+Y(47/2-)   E(level): π=(-) side band.
    4790.5+X(49/2-)   E(level): 5/2[523] band.
    4849.4+Y(49/2+)   E(level): i13/2 π=+ band.
    5027.8+Y(51/2-)   E(level): π=(-) side band.
    5546.2+X(53/2-)   E(level): 5/2[523] band.
    5671.3+Y(53/2+)   E(level): i13/2 π=+ band.
    5784.0+Y(55/2-)   E(level): π=(-) side band.
    6354.9+X(57/2-)   E(level): 5/2[523] band.
    6568.4+Y(57/2+)   E(level): i13/2 π=+ band.
    6594.9+Y(59/2-)   E(level): π=(-) side band.
  7224+X(61/2-)   E(level): 5/2[523] band.

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Additional Gamma Comments:

E(level)E(gamma)Comments
     145.3+X     145.3E(γ): from 169Re ε decay.

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