ADOPTED LEVELS, GAMMAS for 214At
Authors: Shaofei Zhu and E. A. Mccutchan | Citation: Nucl. Data Sheets 175, 1 (2021) | Cutoff date: 1-May-2021
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=941 keV 10 | S(n)= 4871 keV 6 | S(p)= 4015 keV 5 | Q(α)= 8988 keV 4 | ||
Reference: 2021WA16 |
References: | |||
A | 218Fr α decay (1.1 MS) | B | 218Fr α decay (21.9 MS) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | AB | 1- | 558 ns 10 % α = 100 | |||||
59 9 ? | 265 ns 30 % α < 100 | |||||||
78.0 10 | AB | (0-) | 78 | | 0.0 | 1- | ||
145.1 5 | AB | (2)- | 145.1 5 | 100 | M1 | 0.0 | 1- | |
187.0 9 | AB | (3-) | 187 1 | 100 | 0.0 | 1- | ||
228.1 12 | B | (4-) | 83 1 | 100 | 145.1 | (2)- | ||
231 7 | B | 9- | 760 ns 15 % α ≤ 100 | |||||
277.9 10 | B | (7-) | 46 1 | 100 | 231 | 9- | ||
302.1 15 | B | (6-) | 74 1 | 100 | 228.1 | (4-) | ||
304.0 12 | A | (1-,2-) | 117 1 226 2 304 4 | 100 75 100 | 187.0 78.0 0.0 | (3-) (0-) 1- | ||
334.0 14 | A | 147 1 | 100 | 187.0 | (3-) | |||
343.0 10 | B | (8)- | 111 1 | 100 | M1 | 231 | 9- | |
412 7 | B | |||||||
455 8 | B | |||||||
495 6 ? | A | |||||||
504.1 23 | B | 276 2 | 100 | 228.1 | (4-) | |||
565.1 23 | B | 337 2 | 100 | 228.1 | (4-) | |||
631 12 | B | |||||||
728.4 15 | B | (8-) | 451 2 496 2 | 100 50 | 277.9 231 | (7-) 9- | ||
790 6 | B | |||||||
864 7 | B | |||||||
883 16 | B | |||||||
975 9 | B | |||||||
1018 7 | B | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
1138 9 | B |
E(level): From least square fit to Eγ’s by evaluator, unless otherwised noted as from Eα and Qα.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
145.1 | (2)- | 145.1 5 | M1 | 4.19 | α=4.19 7, α(K)=3.39 6, α(L)=0.608 10, α(M)=0.1438 25, α(N)=0.0373 6, α(O)=0.00798 14, α(P)=0.001102 19 | |
343.0 | (8)- | 111 1 | M1 | 8.98 | α=8.98 27, α(K)=7.26 21, α(L)=1.31 4, α(M)=0.310 9, α(N)=0.0804 24, α(O)=0.0172 5, α(P)=0.00238 7 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 1- | 558 ns 10 % α = 100 | Only α decay has been observed. E(level): Only α decay has been observed. |
59 | 265 ns 30 % α < 100 | Only observed by 1982Ew01, but no evidence found by 1999Sh03. E(level): Only observed by 1982Ew01, but no evidence found by 1999Sh03. | |
187.0 | (3-) | Jπ(level): Configuration=((π h9/2)+3(ν g9/2)+3); tentative spin assignment. | |
228.1 | (4-) | Jπ(level): Configuration=((π h9/2)+3(ν g9/2)+3); tentative spin assignment. | |
231 | 9- | 760 ns 15 % α ≤ 100 | %α: only α decay observed, IT decay is possible but not observed. E(level): %α: only α decay observed, IT decay is possible but not observed. From Eα and Q(α). |
277.9 | (7-) | Jπ(level): Configuration=((π h9/2)+3(ν g9/2)+3); tentative spin assignment. | |
302.1 | (6-) | Jπ(level): Configuration=((π h9/2)+3(ν g9/2)+3); tentative spin assignment. | |
412 | E(level): From Eα and Q(α). | ||
455 | E(level): From Eα and Q(α). | ||
495 | E(level): From Eα and Q(α). | ||
631 | E(level): From Eα and Q(α). | ||
790 | E(level): From Eα and Q(α). | ||
864 | E(level): From Eα and Q(α). | ||
883 | E(level): From Eα and Q(α). | ||
975 | E(level): From Eα and Q(α). | ||
1018 | E(level): From Eα and Q(α). | ||
1138 | E(level): From Eα and Q(α). |