ADOPTED LEVELS for 222Po
Authors: Sukhjeet Singh, A. K. Jain, Jagdish K. Tuli | Citation: Nucl. Data Sheets 112,2851 (2011) | Cutoff date: 31-Mar-2011
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=1.53×103 keV 5 | S(n)= 5.36×103 keV 5 | S(p)= 8.9×103 keV SY | Q(α)= 4.6×103 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0 | 0+ | 550 s 430 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 550 s 430 | Measured mass excess=22476 keV 67 (2010Ch19). |
See 2010Ch19 for 222Po isotope discovery and its mass measurements in the fragmentation of 238U beam at 670 MeV/nucleon with a 4g/cm2 9Be target followed by separation by Fragment Recoil Separator facility at GSI. Fragments were then injected into the cooler electron storage ring ESR. The mass and half-life was measured by time-resolved Schottky Mass spectrometry technique. For the measurements of isotopic distributions of the cross-sections, see 2010Al24.
Q-value: Note: Current evaluation has used the following Q record