ADOPTED LEVELS, GAMMAS for 212Fr

Authors: K. Auranen and E.A. Mccutchan |  Citation: Nucl. Data Sheets 168, 117 (2020) |  Cutoff date: 1-Aug-2020 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-3317 keV 14S(n)= 7447 keV 15S(p)= 2050 keV 11Q(α)= 6529.0 keV 16
Reference: 2017Wa10

References:
  A  216Ac α decay (440 μs)  B  198Pt(19F,5nγ), 205Tl(12C,5nγ)

General Comments:

Hyperfine structure. Optical laser spectroscopy: 1990Ar25.

Hyperfine structure. Laser trap: 2002Sp04, 2002Sp02, 2000Gr20, 1999Gr15.

Isotope shift : 2014Co18

Mass measurement : 2019An10

Q-value: S(2n)=16325 18; S(2p)=6122 12; Q(εp)=842 9 (2017Wa10).










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0AB 5+ 20.0 m 6 
% ε = 57 2
% α = 43 2
     
    82.47 5 A  (4+)       82.6 1 
  100

     0.0
5+
   500.71 7 A       418.3 1 
   500.7 1 
  100 6 
   53 4 


    82.47
     0.0
(4+)
5+
   536.34 8 A       453.9 1 
   536.3 1 
    9 1 
  100 6 


    82.47
     0.0
(4+)
5+
   542.10 10 AB 7+ < 0.4 ns    542.2 1 
  100
E2
     0.0
5+
   574.88 11 A       492.4 1 ?
   575.0 4 ?
  100 4 
    1.3 4 


    82.47
     0.0
(4+)
5+
   606.22 7 A       105.8 2 
   523.7 1 
   606.2 1 
   11 3 
  100 7 
   60 7 



   500.71
    82.47
     0.0

(4+)
5+
   610.60 20 A       610.6 2 
  100

     0.0
5+
   777.29 9 A       276.6 2 
   694.8 1 
   777.3 2 
    1.3 6 
  100 5 
   14 2 



   500.71
    82.47
     0.0

(4+)
5+
   853.72 7 A  (4+,5+,6+)      352.9 2 
   771.3 1 
   853.7 1 
    1.2 5 
   77 4 
  100 4 


(M1)
   500.71
    82.47
     0.0

(4+)
5+
   937.26 10 A  (4+,5+,6+)      855.8 7 
   937.2 1 
   ≤5
  100 2 

(M1)
    82.47
     0.0
(4+)
5+
  1008.7 4 A      1008.7 4 
  100

     0.0
5+
  1129.9 4 A      1047.5 9 
  1129.9 5 
   85 50 
  100 40 


    82.47
     0.0
(4+)
5+
  1209.5 5 A      1209.5 5 
  100

     0.0
5+
  1239.9 4 A      1239.9 4 
  100

     0.0
5+
  1287.1 8 A      1287.1 8 
  100

     0.0
5+
  1356.0 20 A      1356 2 
  100

     0.0
5+
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  1375.22 22 A       436.8 6 
  1293.1 4 
  1375.3 3 
   17 6 
   45 17 
  100 20 



   937.26
    82.47
     0.0
(4+,5+,6+)
(4+)
5+
  1389.30 22  B 9+ < 2 ns    847.2 2 
  100
E2
   542.10
7+
  1551.30 24  B 11+ 31.9 µs 7     162.0 1 
  100
E2
  1389.30
9+
  1879.7 3  B 12+ < 2 ns    328.4 2 
  100
M1
  1551.30
11+
  2337.6 4  B (13+) < 2 ns    457.9 2 
  100
(M1+E2)
  1879.7
12+
  2492.1 3  B 15- 603 ns 28     612.4 1 
  100
E3
  1879.7
12+
  2495.7 4  B (14-) < 2 ns    158.0 3 
  100
(E1)
  2337.6
(13+)
  2612.4 4  B (14+) < 1.4 ns    275.0 3 
   732.6 3 
  100 2 
   98 4 
D
(Q)
  2337.6
  1879.7
(13+)
12+
  2951.6 4  B (16+) < 2 ns    339.3 3 
   459.5 2 
  100 1 
   73 2 
[E2]
(E1)
  2612.4
  2492.1
(14+)
15-
  2964.0 3  B 16- < 1.4 ns    468.0 5 
   471.9 1 
    6.8 5 
  100 1 
[E2]
M1
  2495.7
  2492.1
(14-)
15-
  3240.9 3  B 17- < 1.4 ns    277.0 1 
   289.3 2 
   748.8 1 
   53.0 8 
   11.0 4 
  100.0 17 
M1
E1
E2
  2964.0
  2951.6
  2492.1
16-
(16+)
15-
  3256.2 5 ? B < 1.4 ns    304.5 3 
  100

  2951.6
(16+)
  3583.5 4  B 19- < 1.4 ns    342.6 2 
  100
E2
  3240.9
17-
  3750.8 5  B < 1.4 ns    494.6 2 
  100
M1+E2
  3256.2

  4025.5 4  B 20- < 2 ns    442.0 2 
  100
M1
  3583.5
19-
  4081.8 6 ? B < 1.4 ns    331.0 3 
  100

  3750.8

  4137.2 4  B 20- < 2 ns    111?
   553.7 2 
 
 

M1
  4025.5
  3583.5
20-
19-
  4447.1 6  B < 1.4 ns    365.3 2 
  100

  4081.8

  4499.1 5  B < 2 ns    361.9 3 
  100

  4137.2
20-
  4546.9 4  B 21- < 2 ns    409.6 1 
   521.4 2 
   76 1 
  100 2 
M1
M1
  4137.2
  4025.5
20-
20-
  4632.1 6  B      881.3 3 ?
  100

  3750.8

E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  4634.1 6  B      883.3 3 ?
  100

  3750.8

  4765.0 5 ? B      217.8 5 ?
   739.6 3 
 
 


  4546.9
  4025.5
21-
20-
  4834.2 4  B 22+ 4.23 ns 35     287.3 1 
  100
E1
  4546.9
21-
  4907.7 6  B      273.6 3 ?
  100

  4634.1

  5056.0 5  B (23+) < 2.4 ns    148S
   221.9 3 
 
 

(M1)
  4907.7
  4834.2

22+
  5161.1 6  B      529.0 3 ?
  100

  4632.1

  5266.2 5  B (24+) < 2 ns    210.2 1 
  100
M1+E2
  5056.0
(23+)
  5803.1 6  B (25+) < 2 ns    536.9 2 
  100
M1+E2
  5266.2
(24+)
  5854.5 6  B (27-) 312 ns 21     588.3 2 
  100
E3
  5266.2
(24+)
  6055.5 6  B (28)      201.2 3 
  100
D
  5854.5
(27-)
  6344.7 6  B (28-) < 1.4 ns    490.1 2 
  100
M1
  5854.5
(27-)
  6671.0 8  B      326
  100

  6344.7
(28-)
  6976.8 6  B (29) < 1.4 ns    304
   632.1 3 
   921.5 3 
 
   71 5 
  100 5 


(M1+E2)
  6671.0
  6344.7
  6055.5

(28-)
(28)
  7053.9 8  B       77
  1199
 
 


  6976.8
  5854.5
(29)
(27-)
  7253.7 9  B      909
  100

  6344.7
(28-)
  7660.6 7  B (29+) < 2 ns    407
   607
   684
   990.0 5 
  1315.6 5 
 
 
 
   49 2 
  100 2 




E1
  7253.7
  7053.9
  6976.8
  6671.0
  6344.7


(29)

(28-)
  8255.6 7  B      595.0 3 
  1201
 
 


  7660.6
  7053.9
(29+)

  8406.9 11  B      151
  100

  8255.6

  8533.2 11  B 23.6 µs 21     126
   278
 
 

(E3)
  8406.9
  8255.6


E(level): From a least-squares fit to Eγ data. For γ rays given without uncertainty, 1 keV uncertainty has been assumed for the calculation.

Jπ(level): For excited levels, based on measured multipolarities of transitions. For states populated in 198Pt(19F,5nγ),205Tl(12C,5nγ) there is an assumption of increasing spin with increasing excitation energy.

T1/2(level): All values for excited levels are from 198Pt(19F,5nγ), 205Tl(12C,5nγ)

M(γ): From ce and γ(θ) measurements in 198Pt(19F,5nγ),205Tl(12C,5nγ), except where noted.

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Additional Gamma Data:















E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
   542.10 7+ < 0.4 ns    542.2 1 E2 0.0305B(E2)(W.u.)>0.39, α=0.0305, α(K)=0.0208 3, α(L)=0.00725 11, α(M)=0.00184 3, α(N)=0.000483 7, α(O)=0.0001040 15, α(P)=1.515E-5 22, α(Q)=4.69E-7 7
   853.72 (4+,5+,6+)      853.7 1 (M1) 0.0397α=0.0397, α(K)=0.0322 5, α(L)=0.00569 8, α(M)=0.001348 19, α(N)=0.000353 5, α(O)=7.90×10-5 11, α(P)=1.269E-5 18, α(Q)=7.13E-7 10
   937.26 (4+,5+,6+)      937.2 1 (M1) 0.0311α=0.0311, α(K)=0.0253 4, α(L)=0.00445 7, α(M)=0.001054 15, α(N)=0.000276 4, α(O)=6.18×10-5 9, α(P)=9.93E-6 14, α(Q)=5.58E-7 8
  1389.30 9+ < 2 ns    847.2 2 E2 0.01182B(E2)(W.u.)>0.0085, α=0.01182, α(K)=0.00898 13, α(L)=0.00214 3, α(M)=0.000526 8, α(N)=0.0001378 20, α(O)=3.02E-5 5, α(P)=4.59E-6 7, α(Q)=1.94E-7 3
  1551.30 11+ 31.9 µs 7     162.0 1 E2 1.214B(E2)(W.u.)=0.000956 23, α=1.214, α(K)=0.241 4, α(L)=0.717 11, α(M)=0.193 3, α(N)=0.0507 8, α(O)=0.01056 15, α(P)=0.001385 20, α(Q)=7.62E-6 11
  1879.7 12+ < 2 ns    328.4 2 M1 0.508B(M1)(W.u.)>0.00021, α=0.508, α(K)=0.410 6, α(L)=0.0742 11, α(M)=0.01765 25, α(N)=0.00463 7, α(O)=0.001035 15, α(P)=0.0001660 24, α(Q)=9.27×10-6 13
  2337.6 (13+) < 2 ns    457.9 2 (M1+E2) 0.126α=0.126 81, α(K)=0.098 69, α(L)=0.0212 89, α(M)=0.0051 20, α(N)=0.00135 52, α(O)=3.0×10-4 12, α(P)=4.6E-5 21, α(Q)=2.2E-6 16
  2492.1 15- 603 ns 28     612.4 1 E3 0.0711B(E3)(W.u.)=21.8 11, α=0.0711, α(K)=0.0396 6, α(L)=0.0233 4, α(M)=0.00615 9, α(N)=0.001620 23, α(O)=0.000347 5, α(P)=4.98E-5 7, α(Q)=1.218E-6 17
  2495.7 (14-) < 2 ns    158.0 3 (E1) 0.1558B(E1)(W.u.)>2.1E-5, α=0.1558, α(K)=0.1235 19, α(L)=0.0245 4, α(M)=0.00586 9, α(N)=0.001517 23, α(O)=0.000328 5, α(P)=4.83E-5 8, α(Q)=1.98E-6 3
  2951.6 (16+) < 2 ns    339.3 3 [E2] 0.1010B(E2)(W.u.)>0.45, α=0.1010, α(K)=0.0539 8, α(L)=0.0349 5, α(M)=0.00916 14, α(N)=0.00240 4, α(O)=0.000509 8, α(P)=7.05E-5 11, α(Q)=1.280E-6 19
(16+) < 2 ns    459.5 2 (E1) 0.01355B(E1)(W.u.)>3.9E-7, α=0.01355, α(K)=0.01106 16, α(L)=0.00190 3, α(M)=0.000448 7, α(N)=0.0001167 17, α(O)=2.57E-5 4, α(P)=4.00E-6 6, α(Q)=2.00E-7 3
  2964.0 16- < 1.4 ns    468.0 5 [E2] B(E2)(W.u.)>0.012 ?
16- < 1.4 ns    471.9 1 M1 0.190B(M1)(W.u.)>0.00012, α=0.190, α(K)=0.1541 22, α(L)=0.0276 4, α(M)=0.00656 10, α(N)=0.001720 25, α(O)=0.000385 6, α(P)=6.17×10-5 9, α(Q)=3.45E-6 5
  3240.9 17- < 1.4 ns    277.0 1 M1 0.811B(M1)(W.u.)>0.00019, α=0.811, α(K)=0.654 10, α(L)=0.1188 17, α(M)=0.0283 4, α(N)=0.00741 11, α(O)=0.001657 24, α(P)=0.000266 4, α(Q)=1.483×10-5 21
17- < 1.4 ns    289.3 2 E1 0.0371B(E1)(W.u.)>2.9E-7, α=0.0371, α(K)=0.0300 5, α(L)=0.00543 8, α(M)=0.001290 19, α(N)=0.000335 5, α(O)=7.34E-5 11, α(P)=1.119E-5 16, α(Q)=5.19E-7 8
17- < 1.4 ns    748.8 1 E2 0.01517B(E2)(W.u.)>0.011, α=0.01517, α(K)=0.01128 16, α(L)=0.00293 4, α(M)=0.000726 11, α(N)=0.000190 3, α(O)=4.15E-5 6, α(P)=6.24E-6 9, α(Q)=2.46E-7 4
  3583.5 19- < 1.4 ns    342.6 2 E2 0.0982B(E2)(W.u.)>1.0, α=0.0982, α(K)=0.0528 8, α(L)=0.0337 5, α(M)=0.00884 13, α(N)=0.00232 4, α(O)=0.000491 7, α(P)=6.81E-5 10, α(Q)=1.253E-6 18
  3750.8 < 1.4 ns    494.6 2 M1+E20.7 50.125B(E2)(W.u.)>0.006, B(M1)(W.u.)>4.6E-5, α=0.125 38, α(K)=0.099 33, α(L)=0.020 5, α(M)=0.0047 10, α(N)=0.0012 3, α(O)=0.00027 6, α(P)=4.3E-5 10, α(Q)=2.23E-6 72
  4025.5 20- < 2 ns    442.0 2 M1 0.227B(M1)(W.u.)>0.00010, α=0.227, α(K)=0.184 3, α(L)=0.0330 5, α(M)=0.00784 11, α(N)=0.00205 3, α(O)=0.000459 7, α(P)=7.37×10-5 11, α(Q)=4.12E-6 6
  4137.2 20- < 2 ns    553.7 2 M1 0.1243B(M1)(W.u.)>5.8×10-5, α=0.1243, α(K)=0.1006 15, α(L)=0.0180 3, α(M)=0.00427 6, α(N)=0.001118 16, α(O)=0.000250 4, α(P)=4.01E-5 6, α(Q)=2.25E-6 4
  4546.9 21- < 2 ns    409.6 1 M1 0.279B(M1)(W.u.)>5.7×10-5, α=0.279, α(K)=0.225 4, α(L)=0.0405 6, α(M)=0.00964 14, α(N)=0.00253 4, α(O)=0.000565 8, α(P)=9.07E-5 13, α(Q)=5.07E-6 7
21- < 2 ns    521.4 2 M1 0.1458B(M1)(W.u.)>3.7×10-5, α=0.1458, α(K)=0.1181 17, α(L)=0.0211 3, α(M)=0.00502 7, α(N)=0.001315 19, α(O)=0.000294 5, α(P)=4.72E-5 7, α(Q)=2.64E-6 4
  4834.2 22+ 4.23 ns 35     287.3 1 E1 0.0377B(E1)(W.u.)=1.83E-6 16, α=0.0377, α(K)=0.0305 5, α(L)=0.00552 8, α(M)=0.001312 19, α(N)=0.000341 5, α(O)=7.46E-5 11, α(P)=1.138E-5 16, α(Q)=5.27E-7 8
  5056.0 (23+) < 2.4 ns    221.9 3 (M1) 1.500α=1.500, α(K)=1.210 18, α(L)=0.220 4, α(M)=0.0525 8, α(N)=0.01377 20, α(O)=0.00308 5, α(P)=0.000494 8, α(Q)=2.75×10-5 4
  5266.2 (24+) < 2 ns    210.2 1 M1+E21.3 +6-40.94B(E2)(W.u.)>1.9, B(M1)(W.u.)>1.2E-4, α=0.94 24, α(K)=0.62 23, α(L)=0.242 6, α(M)=0.0619 9, α(N)=0.01624 24, α(O)=0.00348 6, α(P)=0.000500 23, α(Q)=1.44E-5 51
E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
  5803.1 (25+) < 2 ns    536.9 2 M1+E21.1 +19-60.078B(E2)(W.u.)>0.015, B(M1)(W.u.)>6.4E-6, α=0.078 37, α(K)=0.061 31, α(L)=0.0129 43, α(M)=0.00314 97, α(N)=8.2E-4 26, α(O)=1.82E-4 58, α(P)=2.83E-5 99, α(Q)=1.37E-6 70
  5854.5 (27-) 312 ns 21     588.3 2 E3 0.0798B(E3)(W.u.)=55 4, α=0.0798, α(K)=0.0431 6, α(L)=0.0272 4, α(M)=0.00718 11, α(N)=0.00189 3, α(O)=0.000405 6, α(P)=5.78E-5 9, α(Q)=1.353E-6 19
  6344.7 (28-) < 1.4 ns    490.1 2 M1 0.1721B(M1)(W.u.)>0.00011, α=0.1721, α(K)=0.1392 20, α(L)=0.0249 4, α(M)=0.00593 9, α(N)=0.001553 22, α(O)=0.000347 5, α(P)=5.57×10-5 8, α(Q)=3.12E-6 5
  6976.8 (29) < 1.4 ns    921.5 3 (M1+E2)0.6 60.0266α=0.0266 74, α(K)=0.0215 61, α(L)=0.0039 10, α(M)=0.00092 22, α(N)=0.00024 6, α(O)=5.4×10-5 13, α(P)=8.6E-6 22, α(Q)=4.7E-7 14
  7660.6 (29+) < 2 ns   1315.6 5 E1 0.00196B(E1)(W.u.)>2.8E-8, α=0.00196, α(K)=0.001576 22, α(L)=0.000248 4, α(M)=5.80E-5 9, α(N)=1.513E-5 22, α(O)=3.37E-6 5, α(P)=5.38E-7 8, α(Q)=3.00E-8 5
  8533.2 23.6 µs 21     278(E3) 1.225α=1.225, α(K)=0.213 3, α(L)=0.739 11, α(M)=0.205 3, α(N)=0.0543 8, α(O)=0.01140 16, α(P)=0.001527 22, α(Q)=1.269×10-5 18

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  3240.917- < 1.4 ns Configuration=(π(h9/2+4)(πi13/21)(ν(f5/2-1) + (π(h9/2+4)(πi13/21)(ν(p1/2-1).
  4546.921- < 2 ns Configuration=(πh9/2+4)(πi13/21)(ν(f5/2-1) + (π(h9/2+3)(πi13/21)(πf7/21)(ν(p1/2-1).

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Additional Gamma Comments:

E(level)E(gamma)Comments
    82.47    82.6E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   500.71   418.3E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   500.7E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   536.34   453.9E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   536.3E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   574.88   492.4E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   575.0E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   606.22   105.8E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   523.7E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   606.2E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   610.60   610.6E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   777.29   276.6E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   694.8E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   777.3E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   853.72   352.9E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   771.3E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   853.7E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
M(γ): from α(K) in 216Ac α decay (440 μs)
   937.26   855.8E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
   937.2E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
M(γ): from α(K) in 216Ac α decay (440 μs)
  1008.7  1008.7E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  1129.9  1047.5E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  1129.9E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  1209.5  1209.5E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  1239.9  1239.9E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  1287.1  1287.1E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
E(level)E(gamma)Comments
  1356.0  1356E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  1375.22   436.8E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  1293.1E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  1375.3E(γ): From 216Ac (440 μs) decay
I(γ): From 216Ac (440 μs) decay
  2495.7   158.0M(γ): d from γ(θ) in 198Pt(19F,5nγ),205Tl(12C,5nγ), Δπ=yes from level scheme.
  2951.6   339.3M(γ): from Jπi and Jπf.
  3240.9   289.3M(γ): d from γ(θ) in 198Pt(19F,5nγ),205Tl(12C,5nγ); Δπ=yes from level scheme

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