ADOPTED LEVELS, GAMMAS for 202Po

Author: F.G. Kondev |  Citation: Nucl. Data Sheets 196, 342 (2024) |  Cutoff date: 1-Sep-2023 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-7346 keV 29S(n)= 9492 keV 10S(p)= 3802 keV 15Q(α)= 5701.0 keV 17
Reference: 2021WA16

References:
  A  202At ε decay  B  206Rn α decay
  C  197Au(11B,6nγ)  D  194Pt(12C,4nγ)
  E  196Pt(12C,6nγ)  F  Coulomb Excitation








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0ABCDEF 0+ 44.5 m 4 
% ε = 98.08 7
% α = 1.92 7
     
   677.20 20 A CDEF 2+ 1.7 ps +5-4     677.2 2 
  100
E2
     0
0+
  1248.59 27 A CDE  4+      571.3 2 
  100
E2
   677.20
2+
  1302.50 28 A      (2)+      625.3 2 
  100
M1+E2
   677.20
2+
  1585.2 5 A           908.0 5 
  100

   677.20
2+
  1667.40 31 A      4+      418.6 3 
   990.4 3 
   92 23 
  100 23 
M1+E2
E2
  1248.59
   677.20
4+
2+
  1689.5 6 A           387.0 5 
  100

  1302.50
(2)+
  1691.54 31 A CDE  6+      443.0 2 
  100
E2
  1248.59
4+
  1691.5+XA CDE  8+ 110 ns 15       
  1758.0 20 A      0+     1758 2 
 
E0
     0
0+
  1774.4 6 A           525.8 5 
  100

  1248.59
4+
  1775.30 28 A          1098.1 2 
  100

   677.20
2+
  1866.2 4 A      5-      617.6 3 
  100
E1
  1248.59
4+
  2102.9 4 A           854.3 3 
  100

  1248.59
4+
  2127.71 34 A      (6+)      436.3 2 
   878.8 3 
   86 29 
  100 24 
M1(+E2)
E2
  1691.54
  1248.59
6+
4+
  2194.30+X 20 A      7-,8-,9-      502.8 2 
  100
(E1)
  1691.5+X
8+
  2217.9+X 4 A CDE  9- ≈ 1.5 ns    526.3 5 
  100
E1
  1691.5+X
8+
  2230.9 4 A      (7-)      364.7 2 
  100
E2
  1866.2
5-
  2254.10 34 A      2+,6+     1005.5 2 
  100
E2
  1248.59
4+
  2282.63 33 A      (5-)      416.5 3 
   591.0 2 
  1034.2 3 
  100 10 
   28 14 
   21 10 
M1+E2


  1866.2
  1691.54
  1248.59
5-
6+
4+
  2294.70+X 20 A      7+,8+,9+      603.2 2 
  100
M1+E2
  1691.5+X
8+
  2345.9 5 A      3-,7-      479.7 4 
  100
E2
  1866.2
5-
  2485.2 5 A      4-,5-,6-      619.0 3 
  100
M1
  1866.2
5-
  2577.7 4 A      4+,8+      886.1 2 
  100
E2
  1691.54
6+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2603.9+X 4   CDE  11- 85 ns 10     386.0
   912.5
   45
  100
E2
E3
  2217.9+X
  1691.5+X
9-
8+
  2830.7+X 4 A           536.0 3 
  100

  2294.70+X
7+,8+,9+
  2839.7 4 A          1148.1 2 
  100

  1691.54
6+
  2897.3+X 5   C E  11-      679.4
  100
E2
  2217.9+X
9-
  3040.3+X 5   C E  12+ 19 ns 4     143.1
   436.4
   48
  100
[E1]
E1
  2897.3+X
  2603.9+X
11-
11-
  3435.0+X 7   C E  13-      537.7
  100
E2
  2897.3+X
11-
  3573.3+X 8   C E  15- 11 ns 3     138.3
  100
E2
  3435.0+X
13-
  3615.8+X 7   C E  14+      180.7
   575.5
   12.9 13 
  100

E2
  3435.0+X
  3040.3+X
13-
12+
  4071.0+X 8   C E  16+      455.2
  100
E2
  3615.8+X
14+
  4609.0+X 10     E  (18+)      538.0
  100
(E2)
  4071.0+X
16+
  4612.5+X 10     E  (18+)      541.5
  100
(E2)
  4071.0+X
16+
  4738.6+X 10     E  18+      667.6
  100
E2
  4071.0+X
16+
  4822.7+X 11     E  (20+)      213.7
  100
(E2)
  4609.0+X
(18+)
  4923.3+X 11     E  (19)      310.8
  100
D
  4612.5+X
(18+)
  5188.5+X 12     E  (22+)      365.8
  100
(E2)
  4822.7+X
(20+)
  5209.4+X 11     E  (20+)      600.4
  100
(E2)
  4609.0+X
(18+)
  5293.1+X 12     E  (21)      470.4
  100
D
  4822.7+X
(20+)
  5528.7+X 12     E       706.0
  100

  4822.7+X
(20+)

E(level): From a least-squares fit to Eγ. When ΔEγ is not given, ΔEγ=0.5 keV was assumed

M(γ): From α(K)exp and α(L)exp in 1998Bi06 and γ(θ) in 1990Fa03, 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
   677.20 2+ 1.7 ps +5-4     677.2 2 E2 0.01620B(E2)(W.u.)=33 +8-10, α=0.01620 23, α(K)=0.01210 17, α(L)=0.00310 4, α(M)=0.000763 11, α(N)=0.0001960 27, α(O)=3.97E-5 6, α(P)=4.59E-6 6
  1248.59 4+      571.3 2 E2 0.02355α=0.02355 33, α(K)=0.01690 24, α(L)=0.00500 7, α(M)=0.001246 17, α(N)=0.000320 4, α(O)=6.43×10-5 9, α(P)=7.23E-6 10
  1302.50 (2)+      625.3 2 M1+E21.8 +7-40.031α=0.031 5, α(K)=0.024 4, α(L)=0.0053 6, α(M)=0.00128 14, α(N)=0.00033 4, α(O)=6.7×10-5 8, α(P)=8.1E-6 11
  1667.40 4+      418.6 3 M1+E20.7 60.15α=0.15 5, α(K)=0.12 4, α(L)=0.024 5, α(M)=0.0057 11, α(N)=0.00146 28, α(O)=0.00030 6, α(P)=3.8×10-5 9
4+      990.4 3 E2 0.00749α=0.00749 11, α(K)=0.00591 8, α(L)=0.001204 17, α(M)=0.000289 4, α(N)=7.43×10-5 10, α(O)=1.526E-5 21, α(P)=1.858E-6 26
  1691.54 6+      443.0 2 E2 0.0432α=0.0432 6, α(K)=0.0285 4, α(L)=0.01102 16, α(M)=0.00279 4, α(N)=0.000717 10, α(O)=0.0001423 20, α(P)=1.527×10-5 21
  1866.2 5-      617.6 3 E1 0.00670α=0.00670 9, α(K)=0.00554 8, α(L)=0.000892 13, α(M)=0.0002081 29, α(N)=5.33×10-5 7, α(O)=1.102E-5 15, α(P)=1.383E-6 19
  2127.71 (6+)      436.3 2 M1(+E2)1.0 LE0.149α=0.149 35, α(K)=0.119 30, α(L)=0.022 4, α(M)=0.0053 8, α(N)=0.00136 20, α(O)=0.00028 4, α(P)=3.6×10-5 7
(6+)      878.8 3 E2 0.00948α=0.00948 13, α(K)=0.00737 10, α(L)=0.001596 22, α(M)=0.000386 5, α(N)=9.92×10-5 14, α(O)=2.028E-5 28, α(P)=2.435E-6 34
  2194.30+X 7-,8-,9-      502.8 2 (E1) 0.01015α=0.01015 14, α(K)=0.00836 12, α(L)=0.001372 19, α(M)=0.000321 4, α(N)=8.20×10-5 12, α(O)=1.693E-5 24, α(P)=2.104E-6 30
  2217.9+X 9- ≈ 1.5 ns    526.3 5 E1 0.00924α=0.00924 13, α(K)=0.00761 11, α(L)=0.001245 18, α(M)=0.000291 4, α(N)=7.44×10-5 11, α(O)=1.536E-5 22, α(P)=1.914E-6 27
  2230.9 (7-)      364.7 2 E2 0.0720α=0.0720 10, α(K)=0.0433 6, α(L)=0.02143 30, α(M)=0.00550 8, α(N)=0.001413 20, α(O)=0.000278 4, α(P)=2.87×10-5 4
  2254.10 2+,6+     1005.5 2 E2 0.00728α=0.00728 10, α(K)=0.00575 8, α(L)=0.001163 16, α(M)=0.000279 4, α(N)=7.17×10-5 10, α(O)=1.474E-5 21, α(P)=1.797E-6 25
  2282.63 (5-)      416.5 3 M1+E21.03 +28-220.127α=0.127 19, α(K)=0.099 16, α(L)=0.0212 19, α(M)=0.0051 4, α(N)=0.00132 11, α(O)=0.000271 24, α(P)=3.29×10-5 35
  2294.70+X 7+,8+,9+      603.2 2 M1+E20.39 +14-170.070α=0.070 5, α(K)=0.057 4, α(L)=0.0100 6, α(M)=0.00236 13, α(N)=0.000607 35, α(O)=0.000127 7, α(P)=1.63×10-5 10
  2345.9 3-,7-      479.7 4 E2 0.0355α=0.0355 5, α(K)=0.02414 34, α(L)=0.00852 12, α(M)=0.002148 31, α(N)=0.000552 8, α(O)=0.0001099 16, α(P)=1.197×10-5 17
  2485.2 4-,5-,6-      619.0 3 M1 0.0725α=0.0725 10, α(K)=0.0592 8, α(L)=0.01015 14, α(M)=0.002386 34, α(N)=0.000614 9, α(O)=0.0001286 18, α(P)=1.664×10-5 23
  2577.7 4+,8+      886.1 2 E2 0.00932α=0.00932 13, α(K)=0.00726 10, α(L)=0.001564 22, α(M)=0.000378 5, α(N)=9.72×10-5 14, α(O)=1.988E-5 28, α(P)=2.389E-6 33
  2603.9+X 11- 85 ns 10     386.0E2 0.0617B(E2)(W.u.)=0.0033 4, α=0.0617 9, α(K)=0.0383 5, α(L)=0.01755 25, α(M)=0.00449 6, α(N)=0.001153 16, α(O)=0.0002273 32, α(P)=2.376E-5 33
11- 85 ns 10     912.5E3 0.02140B(E3)(W.u.)=7.5 9, α=0.02140 30, α(K)=0.01515 21, α(L)=0.00470 7, α(M)=0.001179 17, α(N)=0.000304 4, α(O)=6.15E-5 9, α(P)=7.08E-6 10
  2897.3+X 11-      679.4E2 0.01609α=0.01609 23, α(K)=0.01202 17, α(L)=0.00308 4, α(M)=0.000756 11, α(N)=0.0001942 27, α(O)=3.93×10-5 6, α(P)=4.55E-6 6
  3040.3+X 12+ 19 ns 4     143.1[E1] 0.1868B(E1)(W.u.)=1.07E-6 23, α=0.1868 26, α(K)=0.1492 21, α(L)=0.0287 4, α(M)=0.00679 10, α(N)=0.001725 24, α(O)=0.000346 5, α(P)=3.96E-5 6
12+ 19 ns 4     436.4E1 0.01366B(E1)(W.u.)=7.9E-8 17, α=0.01366 19, α(K)=0.01122 16, α(L)=0.001868 26, α(M)=0.000437 6, α(N)=0.0001118 16, α(O)=2.302E-5 32, α(P)=2.84E-6 4
  3435.0+X 13-      537.7E2 0.0271α=0.0271 4, α(K)=0.01910 27, α(L)=0.00599 8, α(M)=0.001497 21, α(N)=0.000385 5, α(O)=7.70×10-5 11, α(P)=8.57E-6 12
  3573.3+X 15- 11 ns 3     138.3E2 1.882B(E2)(W.u.)=5.0 14, α=1.882 26, α(K)=0.343 5, α(L)=1.141 16, α(M)=0.304 4, α(N)=0.0779 11, α(O)=0.01488 21, α(P)=0.001356 19
E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
  3615.8+X 14+      575.5E2 0.02316α=0.02316 32, α(K)=0.01666 23, α(L)=0.00490 7, α(M)=0.001219 17, α(N)=0.000313 4, α(O)=6.29×10-5 9, α(P)=7.08E-6 10
  4071.0+X 16+      455.2E2 0.0404α=0.0404 6, α(K)=0.0269 4, α(L)=0.01008 14, α(M)=0.00255 4, α(N)=0.000655 9, α(O)=0.0001301 18, α(P)=1.403×10-5 20
  4609.0+X (18+)      538.0(E2) 0.0270α=0.0270 4, α(K)=0.01908 27, α(L)=0.00598 8, α(M)=0.001495 21, α(N)=0.000384 5, α(O)=7.69×10-5 11, α(P)=8.55E-6 12
  4612.5+X (18+)      541.5(E2) 0.0266α=0.0266 4, α(K)=0.01883 26, α(L)=0.00586 8, α(M)=0.001465 21, α(N)=0.000376 5, α(O)=7.54×10-5 11, α(P)=8.40E-6 12
  4738.6+X 18+      667.6E2 0.01670α=0.01670 23, α(K)=0.01243 17, α(L)=0.00323 5, α(M)=0.000794 11, α(N)=0.0002039 29, α(O)=4.13×10-5 6, α(P)=4.76E-6 7
  4822.7+X (20+)      213.7(E2) 0.375α=0.375 5, α(K)=0.1441 20, α(L)=0.1713 24, α(M)=0.0452 6, α(N)=0.01158 16, α(O)=0.002233 31, α(P)=0.0002122 30
  4923.3+X (19)      310.8D 0.29α=0.29 18, α(K)=0.22 16, α(L)=0.052 14, α(M)=0.013 3, α(N)=0.0033 7, α(O)=0.00066 17, α(P)=8.E-5 3, α(N+)=0.0040 9
  5188.5+X (22+)      365.8(E2) 0.07141α=0.07141 99, α(K)=0.0431 6, α(L)=0.02120 30, α(M)=0.00544 8, α(N)=0.001398 20, α(O)=0.000275 4, α(P)=2.84×10-5 4
  5209.4+X (20+)      600.4(E2) 0.02106α=0.02106 29, α(K)=0.01531 21, α(L)=0.00433 6, α(M)=0.001075 15, α(N)=0.000276 4, α(O)=5.56×10-5 8, α(P)=6.31E-6 9
  5293.1+X (21)      470.4D 0.09α=0.09 6, α(K)=0.07 5, α(L)=0.015 6, α(M)=0.0036 14, α(N)=0.0009 4, α(O)=0.00019 8, α(P)=2.4×10-5 11, α(N+)=0.0011 5

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     00+ 44.5 m 4 
% ε = 98.08 7
% α = 1.92 7
Δ<r2>(208Po,202Po)=-0.300 fm2 3 (1991Ko32); δ<r2>(202Po,210Po)=-0.470 fm2 12(stat) 8(syst) (2011Co01); δν(202Po,210Po)=+5.72 GHz 14 (2011Co01).
   677.202+ 1.7 ps +5-4  B(E2)=1.12 +34-26
B(E2)|^ from <0+1|| E2 ||2+1>=+1.06 +15-13 and <2+1|| E2 ||2+1>=-0.7 +13-12 in Coulomb Excitation (2015Ke06).
  1691.5+X8+ 110 ns 15  Q=(-)1.21 16, μ=7.44 15
Configuration=π(h9/2+2).
  2217.9+X9- ≈ 1.5 ns Configuration=ν(f5/2-1,i13/2-1).
  2603.9+X11- 85 ns 10  μ=11.9 3
Configuration=π(h9/2+1,i13/2+1).
  3040.3+X12+ 19 ns 4  Configuration=ν(i13/2-2).
  3573.3+X15- 11 ns 3  Configuration=π(h9/2+2)ν(p3/2-1,i13/2-1); the assignment is tentative.
E(level): Configuration=π(h9/2+2)ν(p3/2-1,i13/2-1); the assignment is tentative.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   677.20   677.2M(γ): A2=0.19 1; A4=0.06 2 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  1248.59   571.3M(γ): A2=0.22 2; A4=0.05 3 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  1302.50   625.3M(γ): α(K)exp=0.024 4 (1998Bi06).
  1667.40   418.6M(γ): α(K)exp=0.12 4 (1998Bi06).
   990.4M(γ): α(K)exp=0.006 2 (1998Bi06).
  1691.54   443.0M(γ): A2=0.14 1; A4=0.03 3 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  1758.0  1758E(γ): 1758γ not observed.
M(γ): From α(K)exp>0.11 (1995Bi17).
  1866.2   617.6M(γ): α(K)exp=0.0060 6 (1998Bi06).
  2127.71   436.3M(γ): α(K)exp=0.13 4 (1998Bi06).
   878.8M(γ): α(K)exp=0.006 2 (1998Bi06).
  2194.30+X   502.8M(γ): α(K)exp<0.012 4 (1998Bi06).
  2217.9+X   526.3M(γ): A2=-0.09 2, A4=0.08(4) (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  2230.9   364.7M(γ): α(K)exp=0.036 5 (1998Bi06).
  2254.10  1005.5M(γ): α(K)exp=0.005 2 (1998Bi06).
  2282.63   416.5M(γ): α(K)exp=0.09 2, α(L)exp=0.023 3 (1998Bi06).
  2294.70+X   603.2M(γ): α(K)exp=0.057 4 (1998Bi06).
  2345.9   479.7M(γ): α(K)exp=0.033 8 (1998Bi06).
  2485.2   619.0M(γ): α(K)exp=0.06 2 (1998Bi06).
  2577.7   886.1M(γ): α(K)exp=0.009 3 (1998Bi06).
  2603.9+X   386.0E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.37 5, A4=-0.17 7 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
   912.5E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.22 3, A4=0.08 5 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  2897.3+X   679.4E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.36 3, A4=-0.01 5 (1990Fa03).
  3040.3+X   143.1E(γ): From 197Au(11B,6nγ) (1976Be12).
I(γ): From 197Au(11B,6nγ) (1976Be12).
   436.4E(γ): From 197Au(11B,6nγ) (1976Be12).
I(γ): From 197Au(11B,6nγ) (1976Be12).
M(γ): A2=-0.04 4, A4=0.12 5 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  3435.0+X   537.7E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.38 3, A4=-0.01 5 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
E(level)E(gamma)Comments
  3573.3+X   138.3E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  3615.8+X   180.7E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
   575.5E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.40 3, A4=-0.02 5 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  4071.0+X   455.2E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.42 3, A4=-0.06 6 (1990Fa03).. From ce measurements in 197Au(11B,6nγ) (1976Be12), but values were not given by the authors
  4609.0+X   538.0E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.38 3, A4=-0.01 5; doublet with 537.7γ (1990Fa03)
  4612.5+X   541.5E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.21 18, A4=0.03 30 (1990Fa03).
  4738.6+X   667.6E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.45 8, A4=-0.02 12 (1990Fa03).
  4822.7+X   213.7E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2/A0>0 (1990Fa03).
  4923.3+X   310.8E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2/A0<0 (1990Fa03).
  5188.5+X   365.8E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2/A0>0 (1990Fa03).
  5209.4+X   600.4E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=0.17 11, A4=0.02 14 (1990Fa03).
  5293.1+X   470.4E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).
M(γ): A2=-0.33 23, A4=0.19 30 (1990Fa03).
  5528.7+X   706.0E(γ): From 196Pt(12C,6nγ) (1990Fa03).
I(γ): From 196Pt(12C,6nγ) (1990Fa03).

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