ADOPTED LEVELS for 187Po
Author: M. S. Basunia | Citation: Nucl. Data Sheets 110, 999 (2009) | Cutoff date: 1-Nov-2008
Full ENSDF file | Adopted Levels (PDF version)
| S(n)= 9.33×103 keV 5 | S(p)= 1.33×103 keV 7 | Q(α)= 7979 keV 15 | |||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0.0 | (1/2-,5/2-) | 1.40 ms 25 % α ≈ 100 |
T1/2(level): From α(t) (2006An11).
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
Production: 144Sm(46Ti,3n), E=224 1 MeV; 96.47% 144Sm enriched target; recoils separated in flight by SHIP velocity filter then implanted into 16-strip Si position-sensitive detector; Time-of-flight veto of beam particles; four-fold segmented Clover Ge detector; measured Eα, Iα, Iγ, recoil-γ coin, recoil-α-γ coin (particle-γ ΔT1/2|<5 μs) (2006An11; see also 2007An19).
Identification: observed 7528α is in prompt coincidence with 286γ in 183Pb and correlated with both known α decays from the g.s. of the 183Pb daughter and also with the known α decays from 179Hg and 175Pt.
Q-value: Note: Current evaluation has used the following Q record 9480 1770 7979 15