ADOPTED LEVELS, GAMMAS for 220Rn
Authors: E. Browne, J. K. Tuli | Citation: Nucl. Data Sheets 112, 1115 (2011) | Cutoff date: 31-Oct-2010
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-870 keV 4 | S(n)= 6288.6 keV 23 | S(p)= 7073 keV 4 | Q(α)= 6404.66 keV 10 | ||
Reference: 2012WA38 |
References: | |||
A | 220At β- decay | B | 232Th(136Xe,xγ) |
C | 224Ra α decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | ABC | 0+ | 55.6 s 1 % α = 100 | |||||
240.986 6 | ABC | 2+ | 0.146 ns 5 | 240.986 6 | 100 | E2 | 0 | 0+ |
533.68 10 | ABC | 4+ | 292.70 10 | 100 | (E2) | 240.986 | 2+ | |
645.44 9 | ABC | 1- | 404.2 2 645.50 10 | 41 10 100 17 | 240.986 0 | 2+ 0+ | ||
663.03 10 | ABC | (3-) | 422.04 10 | 100 | 240.986 | 2+ | ||
851.9 4 | B | (5-) | 188.8 5 318.3 5 | 25 8 100 15 | E2 E1 | 663.03 533.68 | (3-) 4+ | |
873.88 22 | B | (6+) | 340.2 2 | 100 | E2 | 533.68 | 4+ | |
1128.2 4 | B | (7-) | 254.3 5 276.2 5 | 41 10 100 2 | E1 E2 | 873.88 851.9 | (6+) (5-) | |
1244.3 3 | B | (8+) | 370.4 2 | 100 | E2 | 873.88 | (6+) | |
1462.1 5 | B | (9-) | 217.9 5 333.9 5 | 14 4 100 15 | E1 E2 | 1244.3 1128.2 | (8+) (7-) | |
1631.1 4 | B | (10+) | 386.8 2 | 100 | E2 | 1244.3 | (8+) | |
1834.0 7 | B | (11-) | 371.9 5 | 100 | E2 | 1462.1 | (9-) | |
2033.9 7 | B | (12+) | 402.8 5 | 100 | E2 | 1631.1 | (10+) | |
2227.1 9 | B | (13-) | 393.1 5 | 100 | E2 | 1834.0 | (11-) | |
2452.7 8 | B | (14+) | 418.8 5 | 100 | E2 | 2033.9 | (12+) | |
2638.3 10 | B | (15-) | 411.2 5 | 100 | E2 | 2227.1 | (13-) | |
2887.0 10 | B | (16+) | 434.3 5 | 100 | E2 | 2452.7 | (14+) | |
3068.6 11 | B | (17-) | 430.3 5 | 100 | E2 | 2638.3 | (15-) | |
3325.3 11 | B | (18+) | 438.3 5 | | 2887.0 | (16+) | ||
3509.8 12 | B | (19-) | 441.2 5 | 100 | E2 | 3068.6 | (17-) | |
3763.9 12 | B | (20+) | 438.6 5 | | 3325.3 | (18+) | ||
3961.5 13 ? | B | (21-) | 451.7 5 | | 3509.8 | (19-) |
E(level): Deduced by evaluators from least-squares fit to adopted γ-ray energies.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - GS Kπ=0+ ROTATIONAL band | |||||||
0 | 0+ | 55.6 s 1 % α = 100 | |||||
240.986 6 | 2+ | 0.146 ns 5 | 240.986 6 | 100 | E2 | 0 | 0+ |
533.68 10 | 4+ | 292.70 10 | 100 | (E2) | 240.986 | 2+ | |
873.88 22 | (6+) | 340.2 2 | 100 | E2 | 533.68 | 4+ | |
1244.3 3 | (8+) | 370.4 2 | 100 | E2 | 873.88 | (6+) | |
1631.1 4 | (10+) | 386.8 2 | 100 | E2 | 1244.3 | (8+) | |
2033.9 7 | (12+) | 402.8 5 | 100 | E2 | 1631.1 | (10+) | |
2452.7 8 | (14+) | 418.8 5 | 100 | E2 | 2033.9 | (12+) | |
2887.0 10 | (16+) | 434.3 5 | 100 | E2 | 2452.7 | (14+) | |
3325.3 11 | (18+) | 438.3 5 | | 2887.0 | (16+) | ||
3763.9 12 | (20+) | 438.6 5 | | 3325.3 | (18+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - Kπ=0- γ VIBRATIONAL band | |||||||
645.44 9 | 1- | ||||||
663.03 10 | (3-) | 422.04 10 | 100 | 240.986 | 2+ | ||
851.9 4 | (5-) | 188.8 5 318.3 5 | 25 8 100 15 | E2 E1 | 663.03 533.68 | (3-) 4+ | |
1128.2 4 | (7-) | 254.3 5 276.2 5 | 41 10 100 2 | E1 E2 | 873.88 851.9 | (6+) (5-) | |
1462.1 5 | (9-) | 217.9 5 333.9 5 | 14 4 100 15 | E1 E2 | 1244.3 1128.2 | (8+) (7-) | |
1834.0 7 | (11-) | 371.9 5 | 100 | E2 | 1462.1 | (9-) | |
2227.1 9 | (13-) | 393.1 5 | 100 | E2 | 1834.0 | (11-) | |
2638.3 10 | (15-) | 411.2 5 | 100 | E2 | 2227.1 | (13-) | |
3068.6 11 | (17-) | 430.3 5 | 100 | E2 | 2638.3 | (15-) | |
3509.8 12 | (19-) | 441.2 5 | 100 | E2 | 3068.6 | (17-) | |
3961.5 13 | (21-) | 451.7 5 | | 3509.8 | (19-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
240.986 | 2+ | 0.146 ns 5 | 240.986 6 | E2 | 0.276 | B(E2)(W.u.)=47.6 17, α=0.276 |
533.68 | 4+ | 292.70 10 | (E2) | 0.1487 | α=0.1487 | |
851.9 | (5-) | 188.8 5 | E2 | 0.644 | α=0.644 11 | |
(5-) | 318.3 5 | E1 | 0.0291 | α=0.0291 | ||
873.88 | (6+) | 340.2 2 | E2 | 0.0956 | α=0.0956 | |
1128.2 | (7-) | 254.3 5 | E1 | 0.0487 | α=0.0487 | |
(7-) | 276.2 5 | E2 | 0.178 | α=0.178 3 | ||
1244.3 | (8+) | 370.4 2 | E2 | 0.0755 | α=0.0755 | |
1462.1 | (9-) | 217.9 5 | E1 | 0.0701 | α=0.0701 | |
(9-) | 333.9 5 | E2 | 0.1008 | α=0.1008 | ||
1631.1 | (10+) | 386.8 2 | E2 | 0.0671 | α=0.0671 | |
1834.0 | (11-) | 371.9 5 | E2 | 0.0746 | α=0.0746 | |
2033.9 | (12+) | 402.8 5 | E2 | 0.0603 | α=0.0603 | |
2227.1 | (13-) | 393.1 5 | E2 | 0.0643 | α=0.0643 | |
2452.7 | (14+) | 418.8 5 | E2 | 0.0545 | α=0.0545 | |
2638.3 | (15-) | 411.2 5 | E2 | 0.0572 | α=0.0572 | |
2887.0 | (16+) | 434.3 5 | E2 | 0.0497 | α=0.0497 | |
3068.6 | (17-) | 430.3 5 | E2 | 0.0509 | α=0.0509 | |
3509.8 | (19-) | 441.2 5 | E2 | 0.0478 | α=0.0478 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | 0+ | 55.6 s 1 % α = 100 | E(level): GS Kπ=0+ ROTATIONAL band. |
240.986 | 2+ | 0.146 ns 5 | E(level): GS Kπ=0+ ROTATIONAL band. |
533.68 | 4+ | E(level): GS Kπ=0+ ROTATIONAL band. | |
645.44 | 1- | E(level): Kπ=0- γ VIBRATIONAL band. | |
663.03 | (3-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
851.9 | (5-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
873.88 | (6+) | E(level): GS Kπ=0+ ROTATIONAL band. | |
1128.2 | (7-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
1244.3 | (8+) | E(level): GS Kπ=0+ ROTATIONAL band. | |
1462.1 | (9-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
1631.1 | (10+) | E(level): GS Kπ=0+ ROTATIONAL band. | |
1834.0 | (11-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
2033.9 | (12+) | E(level): GS Kπ=0+ ROTATIONAL band. | |
2227.1 | (13-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
2452.7 | (14+) | E(level): GS Kπ=0+ ROTATIONAL band. | |
2638.3 | (15-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
2887.0 | (16+) | E(level): GS Kπ=0+ ROTATIONAL band. | |
3068.6 | (17-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
3325.3 | (18+) | E(level): GS Kπ=0+ ROTATIONAL band. | |
3509.8 | (19-) | E(level): Kπ=0- γ VIBRATIONAL band. | |
3763.9 | (20+) | E(level): GS Kπ=0+ ROTATIONAL band. | |
3961.5 | (21-) | E(level): Kπ=0- γ VIBRATIONAL band. |
Historic Note: This isotope was originally called Thoron with symbol Tn.
Mass measurements: Penning-trap mass spectrometer (2009Ne03); Schottky mass spectrometry (2005LiZZ).
γ-ray linear polarization following α decay (2005JoZY).
Calculations, compilations, systematics:
14C decay rate: 1986De32
Cluster model for α decay, Geiger-Nuttall plot: 1991Bu05
α decay: 2006StZX, 2003Da24, 1997Al22, 1996Wi27, 1992De44.
Effect of octupole and 26 pole deformation on binding energies: 1986Ch23
Equilibrium deformation energy: 1988So08, 1984Na22
Kπ=0+ and Kπ=0- bands: 1980Sh07
Levels, β(|l) ratios: 1995De13
n-p interaction energy: 1990Mo11
Quasibands in even-even nuclei: 1984Sa37
Single-particle levels: 1984So09
Spontaneous emission of heavy ions: 1986Po06
Super- and hyper-deformed configurations: 1995We02
Q-value: Note: Current evaluation has used the following Q record -869 4 6288.6 23 7073 4 6404.6710 2009AuZZ,2003Au03