ADOPTED LEVELS for 207Ra
Authors: F.G. Kondev, S. Lalkovski | Citation: Nucl. Data Sheets 112, 707 (2011) | Cutoff date: 1-Aug-2010
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-7.61×103 keV 8 | S(n)= 8.10×103 keV 6 | S(p)= 2.51×103 keV 7 | Q(α)= 7.27×103 keV 5 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 211Th α decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0 | A | (3/2-,5/2-) | 1.35 s -13+22 % ε ≈ 14 % α ≈ 86 |
| 554 15 | (13/2+) | 59 ms 4 % IT ≥ 85 % α ≤ 15 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | (3/2-,5/2-) | 1.35 s -13+22 % ε ≈ 14 % α ≈ 86 | Assignment: from (α1-α2) correlations between 207Ra (Eα1=7136 keV 12 and T1/2=1.1 s -3+9) and the daughter nuclide 203Rn (Eα2=6499 keV 10 and T1/2≈50 s) (1995Uu01,1995Le41). |
| 554 | (13/2+) | 59 ms 4 % IT ≥ 85 % α ≤ 15 | Assignment: from (α1-α2) correlations between 207Ra isomer (Eα1=7331 keV 15 and T1/2=63 ms 16) and the known isomer in the daughter nuclide 203Rn (Eα2=6548 keV 3 and T1/2=28 s 2) (1996Le09). |