ADOPTED LEVELS, GAMMAS for 212Bi
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-)=2251.5 keV 17 | S(n)= 4330 keV 6 | S(p)= 4914.0 keV 27 | Q(α)= 6207.26 keV 3 | ||
| Reference: 2017WA10 |
| References: | |||
| A | 212Pb β- decay | B | 216At α decay (0.30 MS) |
| C | 216At α decay:J=9 | D | 216At α decay:J=4 |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 1(-) | 60.55 m 6 % β- = 64.06 6 % α = 35.94 6 | |||||
| 115.183 5 | AB | 2(-) | 8 ps 4 | 115.183 5 | 100 | M1 | 0.0 | 1(-) |
| 196 16 | B | |||||||
| 213.1 2 | B | (3-) | 97.9 2 | 100 | M1(+E2) | 115.183 | 2(-) | |
| 238.632 2 | AB | 0(-) | 1.0 ps 2 | 123.5? 238.632 2 | 100 | M1 | 115.183 0.0 | 2(-) 1(-) |
| 239 30 | C | (8-,9-) | 25.0 m 2 % β- = 33 1 % β-α = 30 1 % α = 67 1 | |||||
| 250.7 5 | B | (4-) | 37.6 4 | 100 | M1 | 213.1 | (3-) | |
| 338 16 | B | |||||||
| 415.272 11 | AB | 1(-) | ≤ 10 ps | 176.68 5 300.087 10 415.2 | 1.6 2 100 1 0.40 7 | M1 M1 (M1) | 238.632 115.183 0.0 | 0(-) 2(-) 1(-) |
| 417.9 2 | B | 204.8 3 417.9 2 | 7.7 23 100 15 | 213.1 0.0 | (3-) 1(-) | |||
| 494.5 3 | B | 379.3 3 | 100 | 115.183 | 2(-) | |||
| 573 16 ? | B | |||||||
| 1478 38 | (18-) | 7.0 m 3 % β- < 25 % IT > 75 | ||||||
E(level): From least squares fit to Eγ, except where noted.
M(γ): From internal conversion data in 212Pb β- decay, except where noted.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 115.183 | 2(-) | 8 ps 4 | 115.183 5 | M1 | 6.80 | B(M1)(W.u.)=0.23 +20-8, α=6.80, α(K)=5.53 8, α(L)=0.972 14, α(M)=0.229 4, α(N)=0.0585 9, α(O)=0.01196 17, α(P)=0.001423 20 |
| 213.1 | (3-) | 97.9 2 | M1(+E2) | 9.1 | α=9.1 17, α(K)=4.6 42, α(L)=3.4 18, α(M)=0.87 51, α(N)=0.22 13, α(O)=0.042 23, α(P)=0.0036 14 | |
| 238.632 | 0(-) | 1.0 ps 2 | 238.632 2 | M1 | 0.872 | B(M1)(W.u.)=0.87 +21-15, α=0.872, α(K)=0.710 10, α(L)=0.1232 18, α(M)=0.0290 4, α(N)=0.00741 11, α(O)=0.001514 22, α(P)=0.000180 3 |
| 250.7 | (4-) | 37.6 4 | M1 | 33.5 | α=33.5 12, α(L)=25.6 9, α(M)=6.02 21, α(N)=1.54 6, α(O)=0.315 11, α(P)=0.0374 14 | |
| 415.272 | 1(-) | ≤ 10 ps | 176.68 5 | M1 | 2.02 | B(M1)(W.u.)≥0.0036, α=2.02, α(K)=1.645 23, α(L)=0.287 4, α(M)=0.0674 10, α(N)=0.01725 25, α(O)=0.00352 5, α(P)=0.000419 6 |
| 1(-) | ≤ 10 ps | 300.087 10 | M1 | 0.464 | B(M1)(W.u.)≥0.053, α=0.464, α(K)=0.378 6, α(L)=0.0653 10, α(M)=0.01535 22, α(N)=0.00392 6, α(O)=0.000802 12, α(P)=9.55×10-5 14 | |
| 1(-) | ≤ 10 ps | 415.2 | (M1) | 0.192 | B(M1)(W.u.)≥6.6×10-5, α=0.192, α(K)=0.1572 22, α(L)=0.0269 4, α(M)=0.00632 9, α(N)=0.001617 23, α(O)=0.000330 5, α(P)=3.94E-5 6 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 1(-) | 60.55 m 6 % β- = 64.06 6 % α = 35.94 6 | Q=+0.1 4, μ=+0.32 4 Isotope shifts: 1997Ki15, 2000Pe30. E(level): Isotope shifts: 1997Ki15, 2000Pe30. |
| 196 | E(level): From 212At α decay (0.30 ms). | ||
| 338 | E(level): From 212At α decay (0.30 ms). | ||
| 573 | E(level): From 212At α decay (0.30 ms). | ||
| 1478 | (18-) | 7.0 m 3 % β- < 25 % IT > 75 | Produced by 204Hg(18O,10B), 205Tl(18O,11C), 208Pb(18O,14N) with E(18O)=99-195 MeV (1984Es01) and 9Be(238U,X) with E(238U)=750 MeV/nucleon (2013Ch12). E(level): Produced by 204Hg(18O,10B), 205Tl(18O,11C), 208Pb(18O,14N) with E(18O)=99-195 MeV (1984Es01) and 9Be(238U,X) with E(238U)=750 MeV/nucleon (2013Ch12). |
| E(level) | E(gamma) | Comments |