ADOPTED LEVELS, GAMMAS for 201Po

Author: F.G. Kondev |  Citation: Nucl. Data Sheets 187, 355 (2023) |  Cutoff date: 20-Sep-2022 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-5732 keV 10S(n)= 7651 keV 9S(p)= 3440 keV 23Q(α)= 5799.3 keV 17
Reference: 2021WA16

References:
  A  201Po IT decay (8.96 M)  B  201At ε decay
  C  205Rn α decay  D  194Pt(12C,5nγ)








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0ABCD 3/2- 15.50 m 22 
% ε = 98.87 3
% α = 1.13 3
     
     5.61 13 ABCD 5/2-       5.61 13 S
  100

     0
3/2-
   142 3   C  (1/2-)        
   423.41 22 AB D 13/2+ 8.96 m 12 
% α = 2.4 5
% IT ≈ 42.6
% ε ≈ 55
  417.8 2 
  100
M4
     5.61
5/2-
   621.66 16  B   (7/2)-     616.1 2 
  621.6 2 
  100 9 
   57 5 
M1+E2
(E2)
     5.61
     0
5/2-
3/2-
   623.3 3 ? B   (5/2-)     617.9 3 S
  623.3 3 S
 
 


     5.61
     0
5/2-
3/2-
   722.44 18  B   7/2-     716.6 4 
  722.5 2 
   20.9 18 
  100 9 
[M1,E2]
E2
     5.61
     0
5/2-
3/2-
   758.30 20 ? B   (7/2)-     758.3 2 
  100
E2
     0
3/2-
   766.31 24 ? B   (9/2)-     760.7 2 
  100
E2
     5.61
5/2-
  1006.7 3 ? B   (11/2)+     583.3 2 
  100
M1+E2
   423.41
13/2+
  1015.2 3  B   (11/2)+     591.8 2 
  100
M1+E2
   423.41
13/2+
  1037.0 11    D 17/2+     613.6
  100
(E2)
   423.41
13/2+
  1059.5 3  B   (7/2)-     436.2 2 
  100
M1+E2
   623.3
(5/2-)
  1124.8 5 ? B   (7/2,9/2,11/2)     358.5 4 
  100

   766.31
(9/2)-
  1242.9 5 ? B   (7/2,9/2,11/2)     476.6 4 
  100

   766.31
(9/2)-
  1552.2 3  B   (9/2)+     492.7 2 
  537.0 2 
  100 15 
   95 8 
E1
M1+E2
  1059.5
  1015.2
(7/2)-
(11/2)+
  1574.3 4  B   (9/2,11/2)+     559.1 2 
  100
M1+E2
  1015.2
(11/2)+
  1593.6 15    D 21/2+     556.6
  100
E2
  1037.0
17/2+
  1912.3 18    D 25/2+     318.7
  100
E2
  1593.6
21/2+
  2044.0 4  B   (9/2)+     491.8 2 
  100
E2
  1552.2
(9/2)+
  2101.6 21    D     189.3
  100
D,Q
  1912.3
25/2+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2133.8 21    D 25/2+,(29/2+)     221.5
  100
D,Q
  1912.3
25/2+
  2202.9 4  B   (9/2,11/2)+     628.6 2 
  100
E2
  1574.3
(9/2,11/2)+
  2239.6 23    D     138.0
  100

  2101.6

  2332.2 21    D (27/2)     419.9
  100
D
  1912.3
25/2+
  2347.6 18    D     754.0
  100

  1593.6
21/2+
  2354.7 21    D (27/2+)     442.4
  100
(M1)
  1912.3
25/2+
  2463.9 21    D     551.6
  100

  1912.3
25/2+
  2570.2 21    D (27/2+)     657.9
  100
(M1)
  1912.3
25/2+
  2627.5 23    D (29/2+)     272.8
  100
(M1)
  2354.7
(27/2+)
  2770.1 21    D     857.8
  100

  1912.3
25/2+
  2979.0 23    D 27/2+,31/2+     408.8
  100
M1,E2
  2570.2
(27/2+)
  3039.6 23    D     905.8
  100
D
  2133.8
25/2+,(29/2+)
  3196.5 23    D (29/2)     626.3
  100
D
  2570.2
(27/2+)
  3210.3 23    D (31/2+)     640.1
  100
(E2)
  2570.2
(27/2+)
  3333.1 25    D     354.1
  100
D
  2979.0
27/2+,31/2+
  3710.1 25    D (35/2+)     499.8
  100

  3210.3
(31/2+)
  4153 3 ?   D     442.4
  100

  3710.1
(35/2+)

E(level): From a least-squares fit to Eγ. ΔEγ=0.5 keV is assumed for Eγ’s without uncertainties

M(γ): From α(K)exp in 201At ε decay and γ(θ) in 194Pt(12C,5nγ), unless otherwise stated

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Additional Gamma Data:















E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
   423.41 13/2+ 8.96 m 12 
% α = 2.4 5
% IT ≈ 42.6
% ε ≈ 55
  417.8 2 M4 4.84B(M4)(W.u.)≈1.8, α=4.84 7, α(K)=2.74 4, α(L)=1.542 22, α(M)=0.424 6, α(N)=0.1116 16, α(O)=0.02250 32, α(P)=0.00253 4
   621.66 (7/2)-     616.1 2 M1+E21.72 200.0334α=0.0334 27, α(K)=0.0260 23, α(L)=0.00561 32, α(M)=0.00136 7, α(N)=0.000349 19, α(O)=7.1×10-5 4, α(P)=8.7E-6 6
(7/2)-     621.6 2 (E2) 0.01950α=0.01950 27, α(K)=0.01430 20, α(L)=0.00393 6, α(M)=0.000972 14, α(N)=0.0002497 35, α(O)=5.03×10-5 7, α(P)=5.74E-6 8
   623.3 (5/2-)     617.9 3   α(K)=0.037 23, α(L)=0.0071 31, α(M)=0.0017 7, α(N)=4.4×10-4 18, α(O)=9.E-5 4, α(P)=1.1E-5 5
(5/2-)     623.3 3   α(K)=0.036 22, α(L)=0.0069 30, α(M)=0.0017 7, α(N)=4.3×10-4 18, α(O)=9.E-5 4, α(P)=1.1E-5 5
   722.44 7/2-     716.6 4 [M1,E2] 0.032α=0.032 18, α(K)=0.026 15, α(L)=0.0048 21, α(M)=0.0011 5, α(N)=2.9×10-4 12, α(O)=6.1E-5 27, α(P)=8.E-6 4
7/2-     722.5 2 E2 0.01413α=0.01413 20, α(K)=0.01068 15, α(L)=0.00261 4, α(M)=0.000639 9, α(N)=0.0001642 23, α(O)=3.33×10-5 5, α(P)=3.90E-6 5
   758.30 (7/2)-     758.3 2 E2 0.01278α=0.01278 18, α(K)=0.00973 14, α(L)=0.002303 32, α(M)=0.000562 8, α(N)=0.0001444 20, α(O)=2.94×10-5 4, α(P)=3.46E-6 5
   766.31 (9/2)-     760.7 2 E2 0.01269α=0.01269 18, α(K)=0.00968 14, α(L)=0.002285 32, α(M)=0.000558 8, α(N)=0.0001432 20, α(O)=2.91×10-5 4, α(P)=3.43E-6 5
  1006.7 (11/2)+     583.3 2 M1+E22.61 170.0304α=0.0304 11, α(K)=0.0230 9, α(L)=0.00563 14, α(M)=0.001379 32, α(N)=0.000354 8, α(O)=7.20×10-5 17, α(P)=8.44E-6 23
  1015.2 (11/2)+     591.8 2 M1+E22.67 180.0291α=0.0291 10, α(K)=0.0220 9, α(L)=0.00537 13, α(M)=0.001315 31, α(N)=0.000338 8, α(O)=6.87×10-5 17, α(P)=8.06E-6 22
  1037.0 17/2+     613.6(E2) 0.02007α=0.02007 28, α(K)=0.01467 21, α(L)=0.00408 6, α(M)=0.001009 14, α(N)=0.000259 4, α(O)=5.22×10-5 7, α(P)=5.95E-6 8
  1059.5 (7/2)-     436.2 2 M1+E20.93 230.119α=0.119 19, α(K)=0.094 16, α(L)=0.0193 19, α(M)=0.0046 4, α(N)=0.00119 11, α(O)=0.000246 24, α(P)=3.0×10-5 4
  1552.2 (9/2)+     492.7 2 E1 0.01058α=0.01058 15, α(K)=0.00871 12, α(L)=0.001433 20, α(M)=0.000335 5, α(N)=8.57×10-5 12, α(O)=1.768E-5 25, α(P)=2.196E-6 31
(9/2)+     537.0 2 M1+E23.58 170.0328α=0.0328 7, α(K)=0.0240 6, α(L)=0.00665 11, α(M)=0.001647 27, α(N)=0.000423 7, α(O)=8.53×10-5 14, α(P)=9.74E-6 17
  1574.3 (9/2,11/2)+     559.1 2 M1+E21.78 200.0415α=0.0415 33, α(K)=0.0320 28, α(L)=0.0072 4, α(M)=0.00176 9, α(N)=0.000453 22, α(O)=9.3×10-5 5, α(P)=1.11E-5 7
  1593.6 21/2+     556.6E2 0.02499α=0.02499 35, α(K)=0.01781 25, α(L)=0.00540 8, α(M)=0.001347 19, α(N)=0.000346 5, α(O)=6.94×10-5 10, α(P)=7.77E-6 11
  1912.3 25/2+     318.7E2 0.1054α=0.1054 15, α(K)=0.0585 8, α(L)=0.0350 5, α(M)=0.00907 13, α(N)=0.002329 33, α(O)=0.000455 6, α(P)=4.60×10-5 6
  2044.0 (9/2)+     491.8 2 E2 0.0334α=0.0334 5, α(K)=0.02292 32, α(L)=0.00788 11, α(M)=0.001982 28, α(N)=0.000509 7, α(O)=0.0001015 14, α(P)=1.111×10-5 16
  2133.8 25/2+,(29/2+)     221.5D,Q α(K)=0.6 5, α(L)=0.162 13, α(M)=0.0402 10, α(N+)=0.0135 4
  2202.9 (9/2,11/2)+     628.6 2 E2 0.01903α=0.01903 27, α(K)=0.01399 20, α(L)=0.00381 5, α(M)=0.000941 13, α(N)=0.0002418 34, α(O)=4.88×10-5 7, α(P)=5.58E-6 8
  2354.7 (27/2+)     442.4(M1) 0.1766α=0.1766 25, α(K)=0.1439 20, α(L)=0.02492 35, α(M)=0.00587 8, α(N)=0.001510 21, α(O)=0.000316 4, α(P)=4.09×10-5 6
  2570.2 (27/2+)     657.9(M1) 0.0618α=0.0618 9, α(K)=0.0505 7, α(L)=0.00864 12, α(M)=0.002030 28, α(N)=0.000522 7, α(O)=0.0001094 15, α(P)=1.416×10-5 20
  2627.5 (29/2+)     272.8(M1) 0.656α=0.656 9, α(K)=0.534 7, α(L)=0.0934 13, α(M)=0.02203 31, α(N)=0.00567 8, α(O)=0.001187 17, α(P)=0.0001533 21
  2979.0 27/2+,31/2+     408.8M1,E2 0.14α=0.14 8, α(K)=0.11 7, α(L)=0.023 8, α(M)=0.0055 18, α(N)=0.0014 5, α(O)=2.9×10-4 10, α(P)=3.5E-5 15
E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
  3210.3 (31/2+)     640.1(E2) 0.01829α=0.01829 26, α(K)=0.01350 19, α(L)=0.00362 5, α(M)=0.000894 13, α(N)=0.0002296 32, α(O)=4.64×10-5 6, α(P)=5.31E-6 7

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     03/2- 15.50 m 22 
% ε = 98.87 3
% α = 1.13 3
μ=-0.98 7 (2014Se07,2019StZV), Q=+0.10 10 (2014Se07,2021StZZ)
Eα=5683.3 keV 16, recommended by 1991Ry01. Values from individual measurements are 5674 keV 9 (1963Ho18), 5670 keV 10 (1967Le08), 5677 keV 5 (1967Tr06), 5684 keV 6 (1967Ti04), 5684 keV 2 (1968Go12), 5689 keV 10 (1970Jo26), 5680 keV 10 (1970DaZM) and 5685 keV 4 (1970Ra14).
E(level): Eα=5683.3 keV 16, recommended by 1991Ry01. Values from individual measurements are 5674 keV 9 (1963Ho18), 5670 keV 10 (1967Le08), 5677 keV 5 (1967Tr06), 5684 keV 6 (1967Ti04), 5684 keV 2 (1968Go12), 5689 keV 10 (1970Jo26), 5680 keV 10 (1970DaZM) and 5685 keV 4 (1970Ra14). Configuration=ν p3/2-1.
     5.615/2-   E(level): Configuration=ν f5/2-1.
   142(1/2-)   E(level): Configuration=ν p1/2-1. The assignment is tentative.
   423.4113/2+ 8.96 m 12 
% α = 2.4 5
% IT ≈ 42.6
% ε ≈ 55
μ=-1.00 7 (2014Se07,2019StZV), Q=+1.3 4 (2014Se07,2021StZZ)
Eα=5786.0 keV 16 recommended by 1991Ry01. Values from individual measurements are 5780 keV 7 (1963Ho18), 5770 keV 10 (1967Le08), 5780 keV 5 (1967Tr06), 5788 keV 7 (1967Ti04), 5787 keV 2 (1968Go12), 5778 keV 10 (1970Jo26), 5780 keV 10 (1970DaZM) and 5786 keV 4 (1970Ra14).
E(level): Eα=5786.0 keV 16 recommended by 1991Ry01. Values from individual measurements are 5780 keV 7 (1963Ho18), 5770 keV 10 (1967Le08), 5780 keV 5 (1967Tr06), 5788 keV 7 (1967Ti04), 5787 keV 2 (1968Go12), 5778 keV 10 (1970Jo26), 5780 keV 10 (1970DaZM) and 5786 keV 4 (1970Ra14). Configuration=ν i13/2-1.
  1037.017/2+   E(level): Configuration=ν (i13/2-1)#2+.
  1593.621/2+   E(level): Configuration=ν (i13/2-1)#4+.
  1912.325/2+   E(level): Possibly a mixture between configuration=ν (i13/2-1)#6+ and configuration=ν (i13/2-1) π (h9/2+2)8+.

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Additional Gamma Comments:

E(level)E(gamma)Comments
     5.61     5.61E(γ): From level energy difference.
   423.41   417.8E(γ): Weighted average of 418.5 keV 6 (1976Ko13), 417.6 keV 3 (1971Jo19) an 417.8 keV 6 (1986Br28)
M(γ): α(K)exp=2.49 32, K/L=1.8 2, L/M=2.5 3 (1986Br28); K/L=2.0 3 (1976Ko13), 1.6 2 (1971Jo19)
   621.66   621.6M(γ): α(K)exp=0.019 3 in 201At ε decay (2010De04)
   623.3   617.9E(γ): From level energy difference.
   623.3E(γ): From level energy difference.
   722.44   722.5M(γ): α(K)exp=0.008 1 in 201At ε decay (2010De04)
   758.30   758.3M(γ): α(K)exp=0.007 1 in 201At ε decay (2010De04)
   766.31   760.7M(γ): α(K)exp=0.009 1 in 201At ε decay (2010De04)
  1037.0   613.6E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.5 2, A4=0.1 3, but values are distorted since the 613.6γ is situated on the slope of both the neutron bump and the stronger 611.2γ in 194Pt(12C,5nγ) (1985We05)
  1552.2   492.7M(γ): α(K)exp=0.010 4 in 201At ε decay (2010De04)
  1593.6   556.6E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.24 4, A4=-0.01 5 in 194Pt(12C,5nγ) (1985We05)
  1912.3   318.7E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.22 1, A4=-0.05 1 in 194Pt(12C,5nγ) (1985We05)
  2044.0   491.8M(γ): α(K)exp=0.023 7 in 201At ε decay (2010De04)
  2101.6   189.3E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.1 4, A4=0.2 3 in 194Pt(12C,5nγ) (1985We05)
  2133.8   221.5E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.10 6, A4=-0.11 9 in 194Pt(12C,5nγ) (1985We05)
  2202.9   628.6M(γ): α(K)exp=0.014 3 in 201At ε decay (2010De04)
  2239.6   138.0E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
  2332.2   419.9E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=-0.2 3, A4=-0.1 4 in 194Pt(12C,5nγ) (1985We05)
  2347.6   754.0E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
  2354.7   442.4E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=-0.05 7, A4=0.27 9 in 194Pt(12C,5nγ) (1985We05)
  2463.9   551.6E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
  2570.2   657.9E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=-0.30 18, A4=-0.2 2 in 194Pt(12C,5nγ) (1985We05)
  2627.5   272.8E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.3 3, A4=0.4 3 in 194Pt(12C,5nγ) (1985We05)
  2770.1   857.8E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
  2979.0   408.8E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.5 2, A4=0.1 3 in 194Pt(12C,5nγ) (1985We05)
E(level)E(gamma)Comments
  3039.6   905.8E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=-0.1 3, A4=-0.1 5 in 194Pt(12C,5nγ) (1985We05)
  3196.5   626.3E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=-0.36 7, A4=-0.48 10 in 194Pt(12C,5nγ) (1985We05)
  3210.3   640.1E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.44 19, A4=-0.2 3 in 194Pt(12C,5nγ) (1985We05)
  3333.1   354.1E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
M(γ): A2=0.02 16, A4=0.1 2 in 194Pt(12C,5nγ) (1985We05)
  3710.1   499.8E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)
  4153   442.4E(γ): From 194Pt(12C,5nγ)
I(γ): From 194Pt(12C,5nγ)

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