ADOPTED LEVELS, GAMMAS for 213Fr
Author: M. S. Basunia | Citation: Nucl. Data Sheets 181, 475 (2022) | Cutoff date: 1-Jan-2022
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-3900 keV 11 | S(n)= 8110 keV 10 | S(p)= 2184 keV 6 | Q(α)= 6904.7 keV 13 | ||
Reference: 2021WA16 |
References: | |||
A | 213Ra ε decay (2.73 M) | B | 217Ac α decay (69 NS) |
C | 217Ac α decay: E=1.15 MeV | D | 217Ac α decay (8 NS) |
E | 217Ac α decay (740 NS) | F | (HI,xnγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | BCDEF | 9/2- | 34.17 s 6 % ε = 0.56 5 % α = 99.44 5 | |||||
498.0 10 | E | (7/2-) | 498 | 100 | 0.0 | 9/2- | ||
1105.0 10 | E | (13/2)+ | 1105 | 100 | M2 | 0.0 | 9/2- | |
1188.80 10 | F | 13/2- | < 2.1 ns | 1188.8 1 | 100 | E2 | 0.0 | 9/2- |
1411.00 15 | F | 17/2- | 18 ns 1 | 222.2 1 | 100 | E2 | 1188.80 | 13/2- |
1590.40 18 | F | 21/2- | 505 ns 14 | 179.4 1 | 100 | E2 | 1411.00 | 17/2- |
1856.30 20 | F | 23/2- | < 1.4 ns | 265.9 1 | 100 | M1+E2 | 1590.40 | 21/2- |
2537.61 23 | F | 29/2+ | 238 ns 6 | 681.3 1 | 100 | E3 | 1856.30 | 23/2- |
2740.2 3 | F | 27/2- | < 7 ns | 202.8 4 ? 884.0 3 | 100 16 | E2 | 2537.61 1856.30 | 29/2+ 23/2- |
2950.5 3 | F | 31/2- | < 2.1 ns | 210.4 3 413.0 2 | <33 100 2 | (E2) E1 | 2740.2 2537.61 | 27/2- 29/2+ |
3427.34 24 | F | 33/2+ | < 2.1 ns | 476.9 2 889.7 1 | 45.7 20 100 4 | E1 E2 | 2950.5 2537.61 | 31/2- 29/2+ |
3489.2 4 | F | (33/2) | 538.7 3 | 100 | (D) | 2950.5 | 31/2- | |
3655.4 4 | F | 37/2+ | 2.4 ns 7 | 228.1 2 | 100 | E2 | 3427.34 | 33/2+ |
4029.2 5 | F | 540.0 3 | 100 | 3489.2 | (33/2) | |||
4082.9 4 | F | 39/2+ | < 1.4 ns | 427.5 1 | 100 | M1+E2 | 3655.4 | 37/2+ |
4653.6 11 ? | F | 624.2 5 ? | 100 | 4029.2 | ||||
4675.4 4 | F | < 2.1 ns | 592.5 3 | 100 7 | 4082.9 | 39/2+ | ||
4695.9 4 | F | 39/2- | < 2.1 ns | 42.3S 665? 1040.3 3 | 100 10 | E1 | 4653.6 4029.2 3655.4 | 37/2+ |
4898.5 4 | F | 41/2- | < 2.8 ns | 815.6 2 | 100 | E1 | 4082.9 | 39/2+ |
4982.0 6 | F | 306.5 4 | 100 | 4675.4 | ||||
4992.7 4 | F | 45/2- | 13 ns 2 | 94.4 3 909.8 2 | 3.4 9 100 8 | E2 E3 | 4898.5 4082.9 | 41/2- 39/2+ |
5001.9 5 | F | 326.3 4 | 100 | (D) | 4675.4 | |||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5220.2 5 | F | 227.5S 238 545.1 5 | 100 | 4992.7 4982.0 4675.4 | 45/2- | |||
5506.3 4 | F | 43/2- | < 2.1 ns | 810.2 3 | 100 | E2 | 4695.9 | 39/2- |
5785.9 4 | F | 47/2- | < 1.4 ns | 279.6 2 784.0 4 793.2 3 | 46 4 2.3 8 100 16 | E2 M1 | 5506.3 5001.9 4992.7 | 43/2- 45/2- |
5814.8 5 | F | (45/2+) | 308.3 3 594.7 4 | 60 20 100 20 | (E1) | 5506.3 5220.2 | 43/2- | |
5951.5 5 | F | 949.4 3 959.0 3 | 91 36 100 27 | 5001.9 4992.7 | 45/2- | |||
6102.7 6 | F | (49/2-) | 316.8 4 | 100 | (M1+E2) | 5785.9 | 47/2- | |
6334.1 5 | F | 382.7 3 | 100 | 5951.5 | ||||
6572.9 4 | F | 49/2+ | < 2.1 ns | 239.0 4 469.7 4 ? 758.0 4 786.9 1 | 9 5 16 3 100 9 | E1 | 6334.1 6102.7 5814.8 5785.9 | (49/2-) (45/2+) 47/2- |
6715.3 5 | F | 53/2+ | 6.2 ns 14 | 142.3 3 929.5 3 | 71 9 100 20 | E2 E3 | 6572.9 5785.9 | 49/2+ 47/2- |
6724.5 7 | F | (55/2+) | 9.2S 621.8 3 | 100 33 | [E3] | 6715.3 6102.7 | 53/2+ (49/2-) | |
6803.0 8 | F | (55/2) | 78.4S | 100 | 6724.5 | (55/2+) | ||
6812.8 6 | F | 478.7 3 | 100 | 6334.1 | ||||
7135.0 8 | F | 322.2 5 | 100 | 6812.8 | ||||
7247.5 8 | F | 112.2S | 100 | 7135.0 | ||||
7288.0 7 | F | (57/2+) | < 2.1 ns | 563.3 3 | 100 | M1 | 6724.5 | (55/2+) |
7374.4 8 | F | (57/2,59/2) | 86.3S 127.2 4 | 100 19 | 7288.0 7247.5 | (57/2+) | ||
7541.8 7 | F | (57/2) | 253.6 4 294.1 3 738.8 3 817.7 3 | 100 7 13 3 12.8 15 15 5 | D | 7288.0 7247.5 6803.0 6724.5 | (57/2+) (55/2) (55/2+) | |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
7723.7 7 | F | (59/2+) | 182.0 3 349.5 3 435.6 4 998.9 3 | 56 11 100 6 11 3 16 5 | D D | 7541.8 7374.4 7288.0 6724.5 | (57/2) (57/2,59/2) (57/2+) (55/2+) | |
7983.6 7 | F | (61/2-) | < 3.5 ns | 695 1259.1 3 | 100 5 | E3 | 7288.0 6724.5 | (57/2+) (55/2+) |
8094.9 7 | F | (65/2-) | 3.1 µs 2 | 111.3 2 371.2 2 | 64.0 19 100 8 | (E2) (E3) | 7983.6 7723.7 | (61/2-) (59/2+) |
E(level): Deduced by the evaluator from a least squares fit to the γ-ray energies. Eγ related to uncertain placement and expected ones were ignored.
Jπ(level): Spins and parities for levels above 1188 keV are from (HI,xnγ) data. These assignments are based on γ angular distribution, linear polarization, conversion electron measurements, and transition strengths.
T1/2(level): All excited states’ half-lives are from (HI,xnγ) data.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
1105.0 | (13/2)+ | 1105 | M2 | 0.0479 | α=0.0479 7, α(K)=0.0380 5, α(L)=0.00747 10, α(M)=0.001800 25, α(N)=0.000473 7, α(O)=0.0001056 15, α(P)=1.688×10-5 24, α(Q)=9.26E-7 13 | ||
1188.80 | 13/2- | < 2.1 ns | 1188.8 1 | E2 | 0.00616 | α=0.00616 9, α(K)=0.00487 7, α(L)=0.000976 14, α(M)=0.0002354 33, α(N)=6.16×10-5 9, α(O)=1.360E-5 19, α(P)=2.119E-6 30, α(Q)=1.025E-7 14 | |
1411.00 | 17/2- | 18 ns 1 | 222.2 1 | E2 | 0.382 | B(E2)(W.u.)=0.556 +33-30, α=0.382 5, α(K)=0.1318 18, α(L)=0.1845 26, α(M)=0.0494 7, α(N)=0.01295 18, α(O)=0.00271 4, α(P)=0.000362 5, α(Q)=3.43E-6 5 | |
1590.40 | 21/2- | 505 ns 14 | 179.4 1 | E2 | 0.823 | B(E2)(W.u.)=0.0438 13, α=0.823 12, α(K)=0.2013 28, α(L)=0.458 7, α(M)=0.1234 18, α(N)=0.0324 5, α(O)=0.00675 10, α(P)=0.000890 13, α(Q)=5.84E-6 8 | |
1856.30 | 23/2- | < 1.4 ns | 265.9 1 | M1+E2 | 0.9 +11-9 | 0.60 | α=0.60 31, α(K)=0.45 29, α(L)=0.113 20, α(M)=0.028 4, α(N)=0.0074 9, α(O)=0.00161 25, α(P)=0.00024 5, α(Q)=1.0×10-5 6 |
2537.61 | 29/2+ | 238 ns 6 | 681.3 1 | E3 | 0.0529 | B(E3)(W.u.)=26.4 7, α=0.0529 7, α(K)=0.0317 4, α(L)=0.01579 22, α(M)=0.00412 6, α(N)=0.001086 15, α(O)=0.0002336 33, α(P)=3.38E-5 5, α(Q)=9.27E-7 13 | |
2740.2 | 27/2- | < 7 ns | 884.0 3 | E2 | 0.01087 | α=0.01087 15, α(K)=0.00831 12, α(L)=0.001929 27, α(M)=0.000473 7, α(N)=0.0001238 17, α(O)=2.71×10-5 4, α(P)=4.14E-6 6, α(Q)=1.787E-7 25 | |
2950.5 | 31/2- | < 2.1 ns | 210.4 3 | (E2) | 0.462 | α=0.462 7, α(K)=0.1474 21, α(L)=0.2319 35, α(M)=0.0622 9, α(N)=0.01631 25, α(O)=0.00341 5, α(P)=0.000454 7, α(Q)=3.92×10-6 6 | |
31/2- | < 2.1 ns | 413.0 2 | E1 | 0.01695 | α=0.01695 24, α(K)=0.01381 19, α(L)=0.002396 34, α(M)=0.000567 8, α(N)=0.0001475 21, α(O)=3.25×10-5 5, α(P)=5.03E-6 7, α(Q)=2.474E-7 35 | ||
3427.34 | 33/2+ | < 2.1 ns | 476.9 2 | E1 | 0.01255 | α=0.01255 18, α(K)=0.01025 14, α(L)=0.001751 25, α(M)=0.000413 6, α(N)=0.0001077 15, α(O)=2.376×10-5 33, α(P)=3.70E-6 5, α(Q)=1.858E-7 26 | |
33/2+ | < 2.1 ns | 889.7 1 | E2 | 0.01073 | α=0.01073 15, α(K)=0.00822 12, α(L)=0.001899 27, α(M)=0.000465 7, α(N)=0.0001219 17, α(O)=2.67×10-5 4, α(P)=4.08E-6 6, α(Q)=1.765E-7 25 | ||
3655.4 | 37/2+ | 2.4 ns 7 | 228.1 2 | E2 | 0.349 | B(E2)(W.u.)=3.8 +16-8, α=0.349 5, α(K)=0.1248 18, α(L)=0.1655 24, α(M)=0.0443 6, α(N)=0.01161 17, α(O)=0.002433 35, α(P)=0.000325 5, α(Q)=3.22E-6 5 | |
4082.9 | 39/2+ | < 1.4 ns | 427.5 1 | M1+E2 | 0.10 3 | 0.246 | α=0.246 4, α(K)=0.1992 30, α(L)=0.0359 5, α(M)=0.00854 12, α(N)=0.002237 32, α(O)=0.000500 7, α(P)=8.02×10-5 12, α(Q)=4.47E-6 7 |
4695.9 | 39/2- | < 2.1 ns | 1040.3 3 | E1 | 0.00286 | α=0.00286 4, α(K)=0.002364 33, α(L)=0.000377 5, α(M)=8.83×10-5 12, α(N)=2.304E-5 32, α(O)=5.13E-6 7, α(P)=8.15E-7 11, α(Q)=4.46E-8 6 | |
4898.5 | 41/2- | < 2.8 ns | 815.6 2 | E1 | 0.00443 | α=0.00443 6, α(K)=0.00365 5, α(L)=0.000593 8, α(M)=0.0001392 19, α(N)=3.63×10-5 5, α(O)=8.06E-6 11, α(P)=1.274E-6 18, α(Q)=6.82E-8 10 | |
4992.7 | 45/2- | 13 ns 2 | 94.4 3 | E2 | 11.49 | B(E2)(W.u.)=1.80 +48-43, α=11.49 24, α(L)=8.46 17, α(M)=2.29 5, α(N)=0.601 12, α(O)=0.1244 26, α(P)=0.01601 33, α(Q)=3.84E-5 7 | |
45/2- | 13 ns 2 | 909.8 2 | E3 | 0.0255 | B(E3)(W.u.)=46 +10-7, α=0.0255 4, α(K)=0.01750 25, α(L)=0.00601 8, α(M)=0.001530 21, α(N)=0.000403 6, α(O)=8.75E-5 12, α(P)=1.303E-5 18, α(Q)=4.59E-7 6 | ||
5506.3 | 43/2- | < 2.1 ns | 810.2 3 | E2 | 0.01293 | α=0.01293 18, α(K)=0.00975 14, α(L)=0.002392 34, α(M)=0.000590 8, α(N)=0.0001545 22, α(O)=3.38×10-5 5, α(P)=5.12E-6 7, α(Q)=2.112E-7 30 | |
5785.9 | 47/2- | < 1.4 ns | 279.6 2 | E2 | 0.1797 | α=0.1797 25, α(K)=0.0812 11, α(L)=0.0729 10, α(M)=0.01932 28, α(N)=0.00507 7, α(O)=0.001068 15, α(P)=0.0001452 21, α(Q)=1.989×10-6 28 | |
47/2- | < 1.4 ns | 793.2 3 | M1 | 0.0481 | α=0.0481, α(K)=0.0391 6, α(L)=0.00690 10, α(M)=0.001638 23, α(N)=0.000429 6, α(O)=9.60×10-5 14, α(P)=1.541E-5 22, α(Q)=8.66E-7 13 | ||
5814.8 | (45/2+) | 308.3 3 | (E1) | 0.0322 | α=0.0322 5, α(K)=0.0260 4, α(L)=0.00467 7, α(M)=0.001109 16, α(N)=0.000288 4, α(O)=6.32×10-5 9, α(P)=9.66E-6 14, α(Q)=4.53E-7 6 | ||
6102.7 | (49/2-) | 316.8 4 | (M1+E2) | 0.34 | α=0.34 22, α(K)=0.26 20, α(L)=0.064 18, α(M)=0.016 4, α(N)=0.00411 99, α(O)=9.0×10-4 24, α(P)=1.4E-4 5, α(Q)=6.E-6 4 | ||
6572.9 | 49/2+ | < 2.1 ns | 786.9 1 | E1 | 0.00473 | α=0.00473 7, α(K)=0.00390 5, α(L)=0.000635 9, α(M)=0.0001491 21, α(N)=3.89×10-5 5, α(O)=8.63E-6 12, α(P)=1.363E-6 19, α(Q)=7.27E-8 10 | |
6715.3 | 53/2+ | 6.2 ns 14 | 142.3 3 | E2 | 2.027 | B(E2)(W.u.)=4.6 +15-9, α=2.027 33, α(K)=0.292 4, α(L)=1.278 22, α(M)=0.345 6, α(N)=0.0906 15, α(O)=0.01883 32, α(P)=0.00245 4, α(Q)=1.083E-5 16 | |
53/2+ | 6.2 ns 14 | 929.5 3 | E3 | 0.02428 | B(E3)(W.u.)=38 +13-9, α=0.02428 34, α(K)=0.01676 23, α(L)=0.00563 8, α(M)=0.001429 20, α(N)=0.000376 5, α(O)=8.18E-5 11, α(P)=1.221E-5 17, α(Q)=4.37E-7 6 | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
6724.5 | (55/2+) | 621.8 3 | [E3] | 0.0681 | α=0.0681 10, α(K)=0.0384 5, α(L)=0.02205 31, α(M)=0.00580 8, α(N)=0.001529 22, α(O)=0.000328 5, α(P)=4.70×10-5 7, α(Q)=1.171E-6 16 | ||
7288.0 | (57/2+) | < 2.1 ns | 563.3 3 | M1 | 0.1187 | α=0.1187 17, α(K)=0.0961 14, α(L)=0.01716 24, α(M)=0.00408 6, α(N)=0.001068 15, α(O)=0.0002388 34, α(P)=3.83×10-5 5, α(Q)=2.146E-6 30 | |
7983.6 | (61/2-) | < 3.5 ns | 1259.1 3 | E3 | 0.01229 | α=0.01229 17, α(K)=0.00916 13, α(L)=0.002352 33, α(M)=0.000583 8, α(N)=0.0001532 21, α(O)=3.36×10-5 5, α(P)=5.15E-6 7, α(Q)=2.204E-7 31 | |
8094.9 | (65/2-) | 3.1 µs 2 | 111.3 2 | (E2) | 5.66 | B(E2)(W.u.)=0.0162 11, α=5.66 9, α(K)=0.329 5, α(L)=3.92 6, α(M)=1.063 17, α(N)=0.279 5, α(O)=0.0578 9, α(P)=0.00747 12, α(Q)=2.235E-5 34 | |
(65/2-) | 3.1 µs 2 | 371.2 2 | (E3) | 0.372 | B(E3)(W.u.)=26.6 24, α=0.372 5, α(K)=0.1160 16, α(L)=0.1879 27, α(M)=0.0513 7, α(N)=0.01356 19, α(O)=0.00286 4, α(P)=0.000392 6, α(Q)=4.99E-6 7 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 9/2- | 34.17 s 6 % ε = 0.56 5 % α = 99.44 5 | Q=-0.14 2, μ=+4.02 8 %α: Weighted average of %α=99.1 1, %(ε+β+)=0.9 1 (1974Ho27), %α=99.48 3, %(ε+β+)=0.52 3 (1964Gr04) and %α=99.43 3, %(ε+β+)=0.57 3 (1967Va20). χ2=6.7 cf. χ2crit=3.0. Other: %α=99.75 15, %(ε+β+)=0.25 15 (2017Lo13 - possible escape of 213Rn). (ε+β+) branching was deduced from comparison of 213Fr and 213Rn α’s in by 1964Gr04, 1967Va20, 1974Ho27, and 2017Lo13. Weighted average of all values is the same as above with χ2=5.9 cf. χ2crit=2.6 and unweighted average: %α=99.44 13, %(ε+β+)=0.56 13. E(level): %α: Weighted average of %α=99.1 1, %(ε+β+)=0.9 1 (1974Ho27), %α=99.48 3, %(ε+β+)=0.52 3 (1964Gr04) and %α=99.43 3, %(ε+β+)=0.57 3 (1967Va20). χ2=6.7 cf. χ2crit=3.0. Other: %α=99.75 15, %(ε+β+)=0.25 15 (2017Lo13 - possible escape of 213Rn). (ε+β+) branching was deduced from comparison of 213Fr and 213Rn α’s in by 1964Gr04, 1967Va20, 1974Ho27, and 2017Lo13. Weighted average of all values is the same as above with χ2=5.9 cf. χ2crit=2.6 and unweighted average: %α=99.44 13, %(ε+β+)=0.56 13. |
4675.4 | < 2.1 ns | Two cascading gammas combining the level with 47/2-, three cascading gammas from 49/2+ state, and probable M1 character of the 592.5γ to 39/2+ suggest (41/2+). E(level): Two cascading gammas combining the level with 47/2-, three cascading gammas from 49/2+ state, and probable M1 character of the 592.5γ to 39/2+ suggest (41/2+). | |
4982.0 | If 306.5γ to 4675.4-keV level is E1, as implied by intensity balance at 4675.4-keV level, and if Jπ(4675.4-keV level) is (41/2+), Jπ(4982.0-keV level)=(43/2-) is consistent with being populated from 49/2+ state through three cascading γ transitions. E(level): If 306.5γ to 4675.4-keV level is E1, as implied by intensity balance at 4675.4-keV level, and if Jπ(4675.4-keV level) is (41/2+), Jπ(4982.0-keV level)=(43/2-) is consistent with being populated from 49/2+ state through three cascading γ transitions. | ||
4992.7 | 45/2- | 13 ns 2 | μ=23.2 7 Configuration: π (h9/2+3,i13/2+2). |
5001.9 | 784.0γ from 47/2- state and two cascading γ transitions to 39/2+ state (326.3γ (d) and 592.5γ (d)) suggest Jπ=(43/2-). E(level): 784.0γ from 47/2- state and two cascading γ transitions to 39/2+ state (326.3γ (d) and 592.5γ (d)) suggest Jπ=(43/2-). |
E(level) | E(gamma) | Comments |
1105.0 | 1105 | M(γ): from ce in 217Ac α decay (740 ns) (1985De14). |
4695.9 | 42.3 | E(γ): Transition expected, but not observed. |
5220.2 | 227.5 | E(γ): Transition expected, but not observed. |
6724.5 | 9.2 | E(γ): Transition expected, but not observed. |
6803.0 | 78.4 | E(γ): Transition expected, but not observed. |
7247.5 | 112.2 | E(γ): Transition expected, but not observed. |
7374.4 | 86.3 | E(γ): Transition expected, but not observed. |
2015Ba20: 136Xe + 208Pb, E(c.m.)=450 MeV, measured multi-nucleon transfer reaction cross section σcumulative yield=0.0402 mb 80 a σindependent yield=0.0402 mb 80 for 213Fr.
1986Hi01,1988Ne03: 197Au(16O,F), E=95-124 MeV, measured neutron fission-fragment angular correlations for the compound nuclei. 1988Ne03 measured average number of neutrons preceding fission.
2009Pa49: 238U(p,X), E=1 GeV; measured fission and spallation yields from different mass targets.
2014Si03: 194Pt(19F,X), E=96.2-137.3 MeV; measured spectra and angular distribution of evaporation residues (Er), σ(Er, E).
1972Le23: 205Tl(12C,4n), E=60-90 MeV, measured σ(E).
Gammas: All γ properties are from (HI,xnγ) data.