ADOPTED LEVELS, GAMMAS for 208Po

Author: M. J. Martin |  Citation: Nucl. Data Sheets 108,1583 (2007) |  Cutoff date: 1-Jun-2007 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-5000 keV 9S(n)= 8395 keV 7S(p)= 4704.0 keV 25Q(α)= 5215.3 keV 13
Reference: 2012WA38

References:
  A  208At ε decay  B  209Bi(p,2nγ)
  C  208Pb(3He,3nγ)  D  206Pb(α,2nγ)
  E  208Pb(α,4nγ)  F  204Hg(9Be,5nγ)
  G  210Po(p,t)  H  204Pb(16O,12C)
  I  208Pb(π+-)  J  212Rn α decay

General Comments:

Levels: Configurations: see 1978Be39. These authors have assigned configurations to many of the levels above and including the 8+ level at 1528.

Q-value: Note: Current evaluation has used the following Q record










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0ABCDEFG  J 0+ 2.898 y 2 
% ε = 0.0040 4
% α = 99.9960 4
     
   686.526 20 ABCDEFG  J 2+      686.527 20 
 
E2
     0.0
0+
  1263.03 11 ABC   G    2+      576.50 20 
  1263.03 13 
   100 11 
    64 7 
M1(+E2)
E2
   686.526
     0.0
2+
0+
  1271.6 7 AB         0+ 465 ps 20     585.1
  1271.6 8 
 
 
[E2]
E0
   686.526
     0.0
2+
0+
  1346.56 3 ABCDEF     4+      660.040 17 
 
E2
   686.526
2+
  1420.20 6 ABC        3+      733.68 5 
 
M1+E2
   686.526
2+
  1524.17 3 ABCDEF     6+ 4.01 ns 25     177.595 17 
 
E2
  1346.56
4+
  1528.22 4 ABCDEF     8+ 350 ns 20       4.02 3 
 
E2
  1524.17
6+
  1539.0 10  BC   G    2+      852.5
  1539.0?
 
 
M1+E2

   686.526
     0.0
2+
0+
  1583.21 4 ABCD  G    4+      163.5 4 
   236.66 10 
   896.66 4 
     1.5 5 
    10.2 9 
   100 4 
[M1,E2]
M1(+E2)
E2
  1420.20
  1346.56
   686.526
3+
4+
2+
  1995.46 16 ?A          2-,3-      574.5 10 
  1308.95 16 
    64 12 
   100 12 

E1
  1420.20
   686.526
3+
2+
  2041.23 4 ABC        6+      517.055 20 
   100 10 
M1+E2
  1524.17
6+
  2149.43 10 ?A          3+,4+,5+      566.24 9 
   802.4 5 
    85 9 
   100 6 
M1+E2
M1(+E2)
  1583.21
  1346.56
4+
4+
  2160.09 5 ABCDE      8+      631.83 4 
 
M1+E2
  1528.22
8+
  2240.72 9  BCDEF     9+      712.5 1 
 
M1+E2
  1528.22
8+
  2280.62 16 ?A          3+,4+,5+      934.05 15 
 
M1+E2
  1346.56
4+
  2293.59 5 A C        6+      252.35 12 
   710.5 6 
   765.5 10 
   769.34 5 
   947.10 5 
    38.0 28 
    18.3 24 
     6.1 24 
   100 6 
    83 4 



M1(+E2)
E2
  2041.23
  1583.21
  1528.22
  1524.17
  1346.56
6+
4+
8+
6+
4+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  2335.34 4 ABC        7+      294.07 5 
   807.137 25 
   811.18 9 
    18.2 10 
   100 4 
    20.7 25 
M1
M1(+E2)
M1+E2
  2041.23
  1528.22
  1524.17
6+
8+
6+
  2369.22 4 ABCDEF     7- < 1.4 ns    327.8 5 
   841.2 3 
   845.044 20 
     1.49 20 
     4.31 25 
   100 5 

E1
E1
  2041.23
  1528.22
  1524.17
6+
8+
6+
  2414.55 6 A          7+,8+      254.5 5 
   373.20 15 
   886.32 5 
    12 4 
    18.4 24 
   100 6 


M1+E2
  2160.09
  2041.23
  1528.22
8+
6+
8+
  2507.28 5 A C        6+,7+      172.7 7 
   213.65 15 
   983.12 4 
     2.6 7 
     7.9 13 
   100 5 

M1+E2
M1+E2
  2335.34
  2293.59
  1524.17
7+
6+
6+
  2526.39 12 A          5+      485.10 25 
  1002.5 7 
  1180.00 15 
    47 3 
    34 4 
   100 14 
M1
E2(+M1)
M1(+E2)
  2041.23
  1524.17
  1346.56
6+
6+
4+
  2554.52 8  BCDEF     10+      313.8 1 
  1026.3 1 
   100.0 19 
    88.7 19 
M1+E2
E2
  2240.72
  1528.22
9+
8+
  2555.89 4 A C        7+      262.60 12 
   395.74 5 
  1027.662 24 
     2.3 6 
     7.3 5 
   100 4 
M1(+E2)
M1+E2
M1+E2
  2293.59
  2160.09
  1528.22
6+
8+
8+
  2574.62 4 ABC        6-,7-      205.40 3 
 
M1(+E2)
  2369.22
7-
  2703.03 9  BCDEF     11- 8.04 ns 14     148.5 1 
  1174.8 1 
   100 3 
    49 3 
E1
E3
  2554.52
  1528.22
10+
8+
  2800.12 11  BC EF     9- < 0.35 ns    430.9 1 
 
E2
  2369.22
7-
  2884.24 5 A          5-     1360.12 7 
  1537.71 6 
    54 5 
   100 5 
E1
E1
  1524.17
  1346.56
6+
4+
  2926.68 5 A          5-      400.7 4 
  1343.44 5 
  1402.8 4 
    15 6 
   100 4 
     5.6 6 

E1

  2526.39
  1583.21
  1524.17
5+
4+
6+
  3112.94 15 A          7-      538.0 3 
   605.0 10 
  1071.8 5 
  1584.6 6 
  1588.6 5 
   100 10 
    33 8 
    77 10 
    67 21 
    64 10 
M1+E2


(E1)
(E1)
  2574.62
  2507.28
  2041.23
  1528.22
  1524.17
6-,7-
6+,7+
6+
8+
6+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  3144.73 10 A          6+,7+,8+      637.46 9 
   729.5 5 
  1616.4 5 
  1620.5 5 
    78 6 
    28 6 
   100 12 
    32 5 
M1+E2

(E2)
(E2)
  2507.28
  2414.55
  1528.22
  1524.17
6+,7+
7+,8+
8+
6+
  3201.61 6 A          6+,7+,8+      694.33 4 
   832.8 5 
  1160.32 10 
   100 6 
     3.8 5 
     6.2 11 
M1+E2

E2(+M1)
  2507.28
  2369.22
  2041.23
6+,7+
7-
6+
  3399.83 12  BC EF     12- < 1.0 ns    696.8 1 
 
M1+E2
  2703.03
11-
  3524.90 22      F     11-      724.8 2 
 
Q
  2800.12
9-
  3535.28 7 A          5+,6+      333.67 3 
   390.3 4 
  1951.0 10 
  2011.5 5 
   100 6 
    18.1 23 
     5.1 14 
     5.1 14 
M1(+E2)
M1(+E2)


  3201.61
  3144.73
  1583.21
  1524.17
6+,7+,8+
6+,7+,8+
4+
6+
  3545.53 12     EF     13- 0.76 ns 14      21.0
   145.7 1 
   842.5 1 
 
   100.0 22 
    32 5 

M1
E2
  3524.90
  3399.83
  2703.03
11-
12-
11-
  3553.49 7 A          5-      626.63 9 
   669.45 12 
  1184.5 5 
  1259.3 7 
  1971.0 6 
  2029.33 10 
  2207.10 20 
    28.3 19 
    60 16 
     6 3 
     5.7 19 
     6.0 13 
   100 6 
    31.4 19 
M1(+E2)
M1(+E2)



(E1)

  2926.68
  2884.24
  2369.22
  2293.59
  1583.21
  1524.17
  1346.56
5-
5-
7-
6+
4+
6+
4+
  3564.53 4 A          6-      451.40 20 
   989.94 3 
  1008.60 4 
  1038.3 3 
  1057.0 5 
  1195.31 5 
  1229.18 3 
  1270.5 5 
  1523.37 25 
     5.6 6 
   100 7 
    20.9 22 
     6.1 5 
     1.05 14 
    13.7 7 
    29.1 22 
     0.9 3 
     1.72 18 
M1(+E2)
M1+E2
E1
(E1+M2)

M1+E2
E1


  3112.94
  2574.62
  2555.89
  2526.39
  2507.28
  2369.22
  2335.34
  2293.59
  2041.23
7-
6-,7-
7+
5+
6+,7+
7-
7+
6+
6+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  3682.54 6 A          6-      755.89 4 
   798.68 25 
  1107.73 7 
  1126.80 25 
  1641.60 25 
  2158.5 5 
  2336.30 25 
   100 6 
    39 4 
    37.0 20 
    10.4 20 
    13.0 20 
    12.6 13 
    31 3 
M1(+E2)
M1(+E2)
M1+E2
(E1)
(E1)

[M2]
  2926.68
  2884.24
  2574.62
  2555.89
  2041.23
  1524.17
  1346.56
5-
5-
6-,7-
7+
6+
6+
4+
  3808.03 7 A          6-,7-      923.96 20 
  1234.0 6 
  1300.5 3 
  1438.80 6 
  1472.54 19 
  2284.0 5 
    37.0 25 
    26 5 
    11.8 25 
   100 5 
    16.1 19 
    11.1 14 



M1+E2
(E1)

  2884.24
  2574.62
  2507.28
  2369.22
  2335.34
  1524.17
5-
6-,7-
6+,7+
7-
7+
6+
  3900.63 24     EF     13-      500.8 2 
   100
M1
  3399.83
12-
  4019.17 9 A          (5,6,7)-     1511.89 8 
  1725.2 6 
  2494.8 5 
    51 4 
    11.6 19 
   100 10 
E1


  2507.28
  2293.59
  1524.17
6+,7+
6+
6+
  4057.31 15     EF     14- < 0.7 ns    511.8 1 
 
M1(+E2)
  3545.53
13-
  4061.85 15     EF     15-        4.5
   516.3 1 
 
   100 4 

E2
  4057.31
  3545.53
14-
13-
  4166.68 7 A          7-     1282.4 3 
  1752.16 20 
  1797.42 10 
  1831.8 5 
  1872.88 10 
  2125.65 12 
  2638.6 3 
  2643.3 5 
    25.8 24 
    10.8 10 
    37.6 24 
     5.4 7 
    25.4 19 
    42 3 
   100 7 
    25.4 24 

E1
M1(+E2)

E1
E1


  2884.24
  2414.55
  2369.22
  2335.34
  2293.59
  2041.23
  1528.22
  1524.17
5-
7+,8+
7-
7+
6+
6+
8+
6+
  4177.33 16      F     13- < 0.35 ns    631.8 1 
 
M1+E2
  3545.53
13-
  4251.43 12 A          (5,6,7)-      697.94 12 
   716.7 10 
  1049.2 5 
  1324.6 5 
  1916.5 4 
  2091.3 10 
  2668.2 5 
   100 6 
     9.4 15 
     4.7 5 
     5.8 14 
     9.6 8 
    ≈7
     4.1 10 
E2






  3553.49
  3535.28
  3201.61
  2926.68
  2335.34
  2160.09
  1583.21
5-
5+,6+
6+,7+,8+
5-
7+
8+
4+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  4307.14 18      F     14-      761.6 2 
 
M1
  3545.53
13-
  4452.19 19      F     14-,15-,16-      390.2 2 
   395.0 2 
   100 25 
    50
M1+E2

  4061.85
  4057.31
15-
14-
  4509.36 11 A          (5+,6,7+)     1983.8 5 
  2094.75 10 
  2174.4 5 
  2216.4 5 
  2467.7 5 
    25 4 
   100 7 
    20 6 
    34 14 
    50 5 

E1,E2



  2526.39
  2414.55
  2335.34
  2293.59
  2041.23
5+
7+,8+
7+
6+
6+
  4660.32 16     EF     15- < 0.7 ns    353.2 2 
   603.0 1 
     6.4 11 
   100.0 11 

M1(+E2)
  4307.14
  4057.31
14-
14-
  4804.72 19      F     15-      352.5 2 
   747.4 2 
    64 33 
   100 33 

D
  4452.19
  4057.31
14-,15-,16-
14-
  4913.5 3      F     12,13,14      736.2 2 
 
D
  4177.33
13-
  4918.15 16     EF     16+ < 0.35 ns    113.4 2 
   257.8 1 
   856.3 1 
  1372.6 4 
     2.4 12 
    18.3 12 
   100.0 12 
     2.4 12 
E1
E1
E1
E3
  4804.72
  4660.32
  4061.85
  3545.53
15-
15-
15-
13-
  4919.77 20      F     (14,15,16-) < 1.0 ns    259.5 2 
   612.6 2 
    22 11 
   100 11 


  4660.32
  4307.14
15-
14-
  4920.13 17      F     16- < 0.7 ns    858.3 1 
 
M1(+E2)
  4061.85
15-
  5102.59 22     EF     15+,16+,17+ < 1.4 ns    184.4 2 
 
M1
  4918.15
16+
  5116.96 18     EF     17+ < 0.7 ns    198.8 1 
 
M1
  4918.15
16+
  5262.23 19      F     14+ TO 18+ < 1.4 ns    159.6 2 
   342.5 2 
   100 8 
    67 8 
M1

  5102.59
  4919.77
15+,16+,17+
(14,15,16-)
  5327.0 3      F     14-,15,16,17,18- < 7 ns    406.9 2 
 

  4920.13
16-
  5409.15 17      F     15(+),16(+),17(+) < 0.35 ns    147.0
   489.0 2 
   491.0 1 
 
 
 

(E1)
(M1+E2)
  5262.23
  4920.13
  4918.15
14+ TO 18+
16-
16+
  5465.22 22      F     15,16,17,18-      203.0 2 
   545.1 2 
   ≈67
  ≈100


  5262.23
  4920.13
14+ TO 18+
16-
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  5475.28 19     EF     18+ < 0.35 ns    358.3 1 
 
M1(+E2)
  5116.96
17+
  5861.46 21      F     16+,17+,18+ < 0.7 ns    744.5 2 
 
M1+E2
  5116.96
17+
  5900.11 20     EF     19+ < 0.35 ns    424.8 1 
   100
M1(+E2)
  5475.28
18+
  5921.34 19      F     15+,16,17,18,19+ < 0.7 ns    512.2 1 
   804.4 2 
   100 7 
    28 7 


  5409.15
  5116.96
15(+),16(+),17(+)
17+
  5977.4 3      F     16+,17,18,19,20+ < 0.35 ns    502.1 2 
 

  5475.28
18+
  6021.30 21      F     15+ TO 19+ < 0.35 ns    759.1 2 
   904.3 2 
   100.0 23 
    16.0 23 
M1

  5262.23
  5116.96
14+ TO 18+
17+
  6051.86 24      F     < 0.7 ns    789.6 2 
 

  5262.23
14+ TO 18+
  6486.43 25      F     15,16,17 < 0.7 ns   1077.0 4 
  1224.1 4 
  1566.7 4 
  1568.3 4 
   100 10 
    52 10 
    30 8 
    18 4 




  5409.15
  5262.23
  4920.13
  4918.15
15(+),16(+),17(+)
14+ TO 18+
16-
16+
  6509.60 22      F     16(+),17(+),18(+) < 0.7 ns    457.7 2 
   488.3 2 
   648.1 2 
  1045
  1392.8 5 
   100 9 
    29 5 
    10 3 
 
    29 5 

(M1)


D
  6051.86
  6021.30
  5861.46
  5465.22
  5116.96

15+ TO 19+
16+,17+,18+
15,16,17,18-
17+
  6521.23 19      F     17+,18,19,20+ < 14 ns     11.4
    35.2
   599.9 1 
   621.1 2 
   659.8 2 
  1045.9 4 
 
 
 
 
 
 






  6509.60
  6486.43
  5921.34
  5900.11
  5861.46
  5475.28
16(+),17(+),18(+)
15,16,17
15+,16,17,18,19+
19+
16+,17+,18+
18+
  6598.30 25      F     < 14 ns     77.0
 

  6521.23
17+,18,19,20+
  6620.02 22      F     (19-) < 14 ns     98.8 1 
 
E1
  6521.23
17+,18,19,20+
  6641.02 22      F     19+ < 0.7 ns    740.9 1 
  1165.8 4 
   100.0 11 
     9.9 11 
M1+E2
D
  5900.11
  5475.28
19+
18+
  6647.7 5      F     < 14 ns     27.7
 

  6620.02
(19-)
  6847.63 22      F     18-,19-,20- < 0.7 ns    206.6 1 
   326.4 2 
   100 5 
    20 5 
E1
[E1]
  6641.02
  6521.23
19+
17+,18,19,20+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  6898.20 23      F     < 0.7 ns    278.2 1 
   299.9 1 
   100 3 
    61 3 
M1+E2
D
  6620.02
  6598.30
(19-)

  6914.6 5      F         1014.5 4 
 

  5900.11
19+
  6950.8 3      F     17+ TO 21+ < 14 ns    103.1 2 
 
E1
  6847.63
18-,19-,20-
  7475.50 25      F     < 7 ns    577.3 1 
 

  6898.20

  7653.1 3      F     < 14 ns    702.3 2 
 

  6950.8
17+ TO 21+
  7705.3 3      F     < 0.35 ns    754.5 2 
 
M1
  6950.8
17+ TO 21+
  7784.7 3      F     < 0.35 ns    886.5 1 
  1137.0 4 
   100 6 
    49 6 
E1
E1
  6898.20
  6647.7


  7932.5 3      F     < 7 ns    227.1 2 
   279.4 2 
   457.0 2 
    64 6 
    14 5 
   100 9 



  7705.3
  7653.1
  7475.50



  8023.0 4      F     < 7 ns    547.5 2 
 

  7475.50

  8106.5 4      F     < 0.7 ns    321.8 2 
 
M1
  7784.7

  8394.8 4      F     < 0.7 ns    462.3 2 
 
D
  7932.5

  8730.8 4      F          707.8 2 
 

  8023.0

  8835.5 4      F     < 1.4 ns    903.0 2 
 

  7932.5

  8895.1 4      F     < 0.7 ns    788.6 2 
 
D
  8106.5

  8991.9 5      F          261.1 2 
 

  8730.8

  9032.8 4      F          638.0 2 
 

  8394.8

  9160.6 5      F          265.5 2 
 

  8895.1

  9643.7 5      F          483.1 2 
 
D
  9160.6

    32.46E+3 17         I  (0+)        

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

T1/2(level): From (9Be,5nγ), except where noted otherwise

I(γ): Relative photon branching from the level

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Additional Gamma Data:















E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
   686.526 2+      686.527 20 E2 0.0159α=0.0159
  1263.03 2+      576.50 20 M1(+E2)0.48 LE0.085α=0.085 7
  1271.6 0+ 465 ps 20     585.1[E2] B(E2)(W.u.)<0.06
  1346.56 4+      660.040 17 E2 0.0173α=0.0173
  1420.20 3+      733.68 5 M1+E20.71 170.037α=0.037 4
  1524.17 6+ 4.01 ns 25     177.595 17 E2 0.736B(E2)(W.u.)=5.6 4, α=0.736
  1528.22 8+ 350 ns 20       4.02 3 E2 3.30×106B(E2)(W.u.)=6.4 5, α=3.30×106
  1539.0 2+      852.5M1+E20.70 200.026α=0.026 3
  1583.21 4+      163.5 4 [M1,E2] 1.9α=1.9 9
4+      236.66 10 M1(+E2)0.39 LE0.96α=0.96 5
4+      896.66 4 E2 0.0092α=0.0092
  2041.23 6+      517.055 20 M1+E20.37 50.111α=0.111 3
  2149.43 3+,4+,5+      566.24 9 M1+E20.7 20.073α=0.073 19
3+,4+,5+      802.4 5 M1(+E2)0.3 LE0.038α=0.038 1
  2160.09 8+      631.83 4 M1+E20.42 110.064α=0.064 3
  2240.72 9+      712.5 1 M1+E2-0.29 180.049α=0.049 3
  2280.62 3+,4+,5+      934.05 15 M1+E20.6 40.022α=0.022 4
  2293.59 6+      769.34 5 M1(+E2)0.6 LE0.039α=0.039 3
6+      947.10 5 E2 0.0083α=0.0083
  2335.34 7+      294.07 5 M1 0.558α=0.558
7+      807.137 25 M1(+E2)0.27 LE0.0373α=0.0373 9
7+      811.18 9 M1+E20.90 240.026α=0.026 4
  2369.22 7- < 1.4 ns    841.2 3 E1 0.0373α=0.0373
7- < 1.4 ns    845.044 20 E1 0.0071α=0.0071
  2414.55 7+,8+      886.32 5 M1+E20.6 30.023α=0.023 5
E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
  2507.28 6+,7+      213.65 15 M1+E20.6 31.09α=1.09 18
6+,7+      983.12 4 M1+E20.35 150.0212α=0.0212 12
  2526.39 5+      485.10 25 M1 0.144α=0.144
5+     1002.5 7 E2(+M1)1.3 GT0.010α=0.010 3
5+     1180.00 15 M1(+E2)0.7 LE0.0129α=0.0129 15
  2554.52 10+      313.8 1 M1+E2-0.09 10.465α=0.465
10+     1026.3 1 E2 0.0071α=0.0071
  2555.89 7+      262.60 12 M1(+E2)0.95 LE0.62α=0.62 14
7+      395.74 5 M1+E20.43 150.218α=0.218 17
7+     1027.662 24 M1+E20.42 +20-250.0185α=0.0185 17
  2574.62 6-,7-      205.40 3 M1(+E2)0.27 LE1.47α=1.47 4
  2703.03 11- 8.04 ns 14     148.5 1 E1 0.172B(E1)(W.u.)=1.6E-4 4, α=0.172
11- 8.04 ns 14    1174.8 1 E3 0.0119B(E3)(W.u.)=5.5 14, α=0.0119
  2800.12 9- < 0.35 ns    430.9 1 E2 0.0469α=0.0469
  3112.94 7-      538.0 3 M1+E21.0 30.070α=0.070 13
  3144.73 6+,7+,8+      637.46 9 M1+E21.3 +17-60.030α=0.030 13
  3201.61 6+,7+,8+      694.33 4 M1+E21.32 210.030α=0.030 4
6+,7+,8+     1160.32 10 E2(+M1)3.5 GE0.0059α=0.0059 4
  3399.83 12- < 1.0 ns    696.8 1 M1+E2-0.21 50.0542α=0.0542 8
  3535.28 5+,6+      333.67 3 M1(+E2)0.45 LE0.370α=0.370 25
5+,6+      390.3 4 M1(+E2)0.65 LE0.23α=0.23 3
  3545.53 13- 0.76 ns 14     145.7 1 M1 3.96α=3.96
13- 0.76 ns 14     842.5 1 E2 0.0104α=0.0104
  3553.49 5-      626.63 9 M1(+E2)0.35 LE0.71α=0.71 3
5-      669.45 12 M1(+E2)0.93 LE0.52α=0.52 10
E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
  3564.53 6-      451.40 20 M1(+E2)0.61 LE0.157α=0.157 18
6-      989.94 3 M1+E20.38 LE0.0216α=0.0216 10
6-     1038.3 3 (E1+M2)0.27 7 
6-     1195.31 5 M1+E20.96 200.0099α=0.0099 10
  3682.54 6-      755.89 4 M1(+E2)0.65 LE0.040α=0.040 5
6-      798.68 25 M1(+E2)0.6 LE0.036α=0.036 3
6-     1107.73 7 M1+E21.2 50.0111α=0.0111 23
  3808.03 6-,7-     1438.80 6 M1+E20.8 50.0069α=0.0069 13
  3900.63 13-      500.8 2 M1 0.133α=0.133
  4057.31 14- < 0.7 ns    511.8 1 M1(+E2)0.81 LE0.107α=0.107 19
  4061.85 15-      516.3 1 E2 0.030α=0.030
  4166.68 7-     1797.42 10 M1(+E2)0.87 LE 
  4177.33 13- < 0.35 ns    631.8 1 M1+E2-0.62 150.057α=0.057 5
  4251.43 (5,6,7)-      697.94 12 E2 0.0154α=0.0154
  4307.14 14-      761.6 2 M1 0.0444α=0.0444
  4452.19 14-,15-,16-      390.2 2 M1+E2 0.16α=0.16 10
  4660.32 15- < 0.7 ns    603.0 1 M1(+E2)-0.03 40.0817α=0.0817
  4918.15 16+ < 0.35 ns    257.8 1 E1 0.045α=0.045
16+ < 0.35 ns    856.3 1 E1 0.0036α=0.0036
16+ < 0.35 ns   1372.6 4 E3 0.0085α=0.0085
  4920.13 16- < 0.7 ns    858.3 1 M1(+E2)-0.1 10.032α=0.032 1
  5116.96 17+ < 0.7 ns    198.8 1 M1 1.65α=1.65
  5262.23 14+ TO 18+ < 1.4 ns    159.6 2 M1 3.06α=3.06
  5409.15 15(+),16(+),17(+) < 0.35 ns    491.0 1 (M1+E2) 0.09α=0.09 5
  5475.28 18+ < 0.35 ns    358.3 1 M1(+E2)-0.03 30.326α=0.326
E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
  5900.11 19+ < 0.35 ns    424.8 1 M1(+E2)-0.09 90.206α=0.206
  6847.63 18-,19-,20- < 0.7 ns    206.6 1 E1 0.077α=0.077
18-,19-,20- < 0.7 ns    326.4 2 [E1] 0.026α=0.026
  6898.20 < 0.7 ns    278.2 1 M1+E2+0.07 50.647α=0.647

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 2.898 y 2 
% ε = 0.0040 4
% α = 99.9960 4
%ε: from 1993Sa14 in 208Po ε decay. Other:0.00223 (1966Ha29).
  1346.564+   Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  1524.176+ 4.01 ns 25  μ=+5.3 6 (1982Ha16,1983He09,2005St24)
Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  2240.729+   Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  2554.5210+   Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  2703.0311- 8.04 ns 14  μ=12.11 14
Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  3399.8312- < 1.0 ns Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  3545.5313- 0.76 ns 14  Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  4057.3114- < 0.7 ns Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  4061.8515-   Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  4660.3215- < 0.7 ns Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  4918.1516+ < 0.35 ns Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  5116.9617+ < 0.7 ns Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  5475.2818+ < 0.35 ns Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
  5900.1119+ < 0.35 ns Jπ(level): From 1978Be39 in 208Pb(α,4nγ) based on γ mult, excitation function and γ(θ).
    32.46E+3(0+)   Γ=850 400.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  1271.6   585.1E(γ): transition not seen. Energy from energy level difference
  1271.6E(γ): From (p,2nγ)
  1539.0   852.5E(γ): From (p,2nγ)
  1539.0E(γ): From (p,2nγ)
  2240.72   712.5E(γ): From (9Be,5nγ)
  2554.52   313.8E(γ): From (9Be,5nγ)
I(γ): From (9Be,5nγ). Values are from table 2 of 1997Po04
  1026.3E(γ): From (α,4nγ)
I(γ): From (9Be,5nγ). Values are from table 2 of 1997Po04
  2703.03   148.5E(γ): From (9Be,5nγ)
I(γ): From (9Be,5nγ). Values are from table 2 of 1997Po04
  1174.8E(γ): From (α,4nγ)
I(γ): from (9Be,5nγ). Other:40 (p,2nγ), 43 (α,4nγ), (3He,3nγ). From (9Be,5nγ). Values are from table 2 of 1997Po04
  2800.12   430.9E(γ): From (α,4nγ)
  3112.94  1584.6M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=yes
  1588.6M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=yes
  3144.73  1616.4M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=no
  1620.5M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=no
  3399.83   696.8E(γ): From (9Be,5nγ)
  3524.90   724.8E(γ): From (9Be,5nγ)
  3545.53    21.0E(γ): From (9Be,5nγ). Not observed directly. Existence is required by coincidence data. Eγ is deduced from the level energies, and I(γ+ce) is deduced from the coincidence data
   145.7E(γ): From (9Be,5nγ)
I(γ): From (9Be,5nγ). Values are from table 2 of 1997Po04
   842.5E(γ): From (9Be,5nγ)
I(γ): From (9Be,5nγ). Values are from table 2 of 1997Po04
  3553.49  2029.33M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=yes
  3564.53  1038.3M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=yes
  3682.54  1126.80M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=yes
  1641.60M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=yes
  3808.03  1472.54M(γ): α(K)exp allows E1 or E2. Placement in the level scheme requires Δπ=yes
  3900.63   500.8E(γ): From (9Be,5nγ)
E(level)E(gamma)Comments
  4057.31   511.8E(γ): From (9Be,5nγ)
  4061.85     4.5E(γ): From (9Be,5nγ). Not observed directly. Existence is required by coincidence data. Eγ is deduced from the level energies, and I(γ+ce) is deduced from the coincidence data
   516.3E(γ): From (9Be,5nγ)
I(γ): From (9Be,5nγ). Values are from table 2 of 1997Po04
  4177.33   631.8E(γ): From (9Be,5nγ)
  4307.14   761.6E(γ): From (9Be,5nγ)
  4452.19   390.2E(γ): From (9Be,5nγ)
I(γ): From (9Be,5nγ). Values are from table 2 of 1997Po04
   395.0E(γ): From (9Be,5nγ)
I(γ): From (9Be,5nγ). Values are from table 2 of 1997Po04
  5409.15   489.0M(γ): From γ(θ) and γ(lin pol), the unresolved 488.3 and 489.9 are probably M1 and E1. The 489.9γ is placed from the 5409 level whose parity, based on mult(491γ) is probably +. The 489γ would then Be expected to have mult=E1, and thus mult(488.3γ) is probably M1
  6486.43  1077.0M(γ): ΔJ=0 from γ(θ)
  6509.60   488.3M(γ): From γ(θ) and γ(lin pol), the unresolved 488.3 and 489.9 are probably M1 and E1. The 489.9γ is placed from the 5409 level whose parity, based on mult(491γ) is probably +. The 489γ would then Be expected to have mult=E1, and thus mult(488.3γ) is probably M1
  6521.23    11.4E(γ): Not observed directly. Existence is required by coincidence data. Eγ is deduced from the level energies, and I(γ+ce) is deduced from the coincidence data
    35.2E(γ): Not observed directly. Existence is required by coincidence data. Eγ is deduced from the level energies, and I(γ+ce) is deduced from the coincidence data
  6598.30    77.0E(γ): Not observed directly. Existence is required by coincidence data. Eγ is deduced from the level energies, and I(γ+ce) is deduced from the coincidence data
  6641.02   740.9M(γ): ΔJ=0 from γ(θ)
  6647.7    27.7E(γ): Not observed directly. Existence is required by coincidence data. Eγ is deduced from the level energies, and I(γ+ce) is deduced from the coincidence data

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