ADOPTED LEVELS, GAMMAS for 214Bi
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-)=3269 keV 11 | S(n)= 4040 keV 12 | S(p)= 5286 keV 13 | Q(α)= 5621 keV 3 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 218At α decay | B | 214Pb β- decay |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 1- | 19.71 m 2 % β- = 99.9790 13 % α = 0.0210 13 | |||||
| 53.2260 15 | AB | 2- | ≤ 15 ps | 53.2256 16 | 100 | M1+E2 | 0.0 | 1- |
| 62.68 5 | AB | (2-,3-) | 9.5S | 100 | 53.2260 | 2- | ||
| 101 5 | A | (3-,4-) | ||||||
| 258.869 24 | B | (2)- | 196.20 5 205.68 9 258.86 4 | 12.8 17 2.1 3 100.0 8 | M1 | 62.68 53.2260 0.0 | (2-,3-) 2- 1- | |
| 295.2236 19 | B | 1- | ≤ 0.05 ns | 241.995 4 295.224 2 | 39.32 12 100.0 4 | M1+E2 M1+E2 | 53.2260 0.0 | 2- 1- |
| 351.9323 21 | B | 0-,1- | ≤ 0.10 ns | 351.9320 21 | 100 | M1+E2 | 0.0 | 1- |
| 377.03 4 | B | (2-) | 314.32 7 323.83 4 | 100 12 38 5 | 62.68 53.2260 | (2-,3-) 2- | ||
| 533.672 14 | B | (1-) | 274.80 5 480.43 2 533.66 2 | 99.7 24 100.0 13 54 3 | M1 M1 | 258.869 53.2260 0.0 | (2)- 2- 1- | |
| 539 30 | > 93 s | |||||||
| 797.30 8 ? | B | 538.43 8 ? | 100 | 258.869 | (2)- | |||
| 838.994 22 | B | 1+ | 305.26 3 462.01 7 487.11 7 543.82 7 580.13 3 785.96 9 839.06 9 | 3.00 21 20.0 6 40.9 5 4.7 9 34.8 5 100 7 54.8 10 | (E1) (E1) E1 (E1) | 533.672 377.03 351.9323 295.2236 258.869 53.2260 0.0 | (1-) (2-) 0-,1- 1- (2)- 2- 1- | |
| 888.03 10 ? | B | 511.00 9 ? | 100 | 377.03 | (2-) | |||
E(level): From a least square fit to Eγ’s, except where noted.
T1/2(level): Half-lives of excited states were measured in 214Pb β- decay.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
| 53.2260 | 2- | ≤ 15 ps | 53.2256 16 | M1+E2 | 0.038 +26-18 | 12.20 | B(M1)(W.u.)>0.73, α=12.20 35, α(L)=9.32 26, α(M)=2.20 7, α(N)=0.562 17, α(O)=0.1146 32, α(P)=0.01356 27 |
| 258.869 | (2)- | 258.86 4 | M1 | 0.696 | α=0.696 10, α(K)=0.567 8, α(L)=0.0983 14, α(M)=0.02310 32, α(N)=0.00591 8, α(O)=0.001207 17, α(P)=0.0001437 20 | ||
| 295.2236 | 1- | ≤ 0.05 ns | 241.995 4 | M1+E2 | 0.50 +8-7 | 0.718 | B(E2)(W.u.)>5.0, B(M1)(W.u.)>0.0043, α=0.718 33, α(K)=0.568 31, α(L)=0.1138 20, α(M)=0.0272 4, α(N)=0.00696 11, α(O)=0.001402 24, α(P)=0.000159 4 |
| 1- | ≤ 0.05 ns | 295.224 2 | M1+E2 | 0.39 7 | 0.438 | B(E2)(W.u.)>2.9, B(M1)(W.u.)>0.0067, α=0.438 16, α(K)=0.352 15, α(L)=0.0650 14, α(M)=0.01541 30, α(N)=0.00394 8, α(O)=0.000800 17, α(P)=9.30E-5 26 | |
| 351.9323 | 0-,1- | ≤ 0.10 ns | 351.9320 21 | M1+E2 | 0.49 10 | 0.257 | B(E2)(W.u.)>1.4, B(M1)(W.u.)>0.0030, α=0.257 15, α(K)=0.207 13, α(L)=0.0384 14, α(M)=0.00911 30, α(N)=0.00233 8, α(O)=0.000472 17, α(P)=5.47E-5 25 |
| 533.672 | (1-) | 274.80 5 | M1 | 0.590 | α=0.590 8, α(K)=0.481 7, α(L)=0.0833 12, α(M)=0.01957 27, α(N)=0.00501 7, α(O)=0.001023 14, α(P)=0.0001218 17 | ||
| (1-) | 480.43 2 | M1 | 0.1303 | α=0.1303 18, α(K)=0.1066 15, α(L)=0.01818 25, α(M)=0.00427 6, α(N)=0.001091 15, α(O)=0.0002230 31, α(P)=2.66×10-5 4 | |||
| 838.994 | 1+ | 487.11 7 | (E1) | 0.01046 | α=0.01046 15, α(K)=0.00863 12, α(L)=0.001406 20, α(M)=0.000328 5, α(N)=8.33×10-5 12, α(O)=1.676E-5 23, α(P)=1.909E-6 27 | ||
| 1+ | 580.13 3 | (E1) | 0.00732 | α=0.00732 10, α(K)=0.00605 8, α(L)=0.000970 14, α(M)=0.0002257 32, α(N)=5.74×10-5 8, α(O)=1.158E-5 16, α(P)=1.331E-6 19 | |||
| 1+ | 785.96 9 | E1 | 0.00406 | α=0.00406 6, α(K)=0.00337 5, α(L)=0.000527 7, α(M)=0.0001222 17, α(N)=3.11×10-5 4, α(O)=6.30E-6 9, α(P)=7.35E-7 10 | |||
| 1+ | 839.06 9 | (E1) | 0.00359 | α=0.00359 5, α(K)=0.00299 4, α(L)=0.000465 7, α(M)=0.0001077 15, α(N)=2.74×10-5 4, α(O)=5.56E-6 8, α(P)=6.49E-7 9 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| E(level) | E(gamma) | Comments |
214Bi (RaC) was first identified as a descendent of 226Ra decay chain, by Rutherford and Barnes (1904Ru04) in a study of radiations from radium (226Ra), as reviewed in article 2013Fr04.
Q-value: S(2n)=9225 11; S(2p)=14230 (syst) 200 (2021Wa16 )