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 5S(n)= 5.36×103 keV 5S(p)= 8.9×103 keV SYQ(α)= 4.6×103 keV SY
Reference: 2012WA38

General Comments:

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

Jπ(level) T1/2(level)
  0 0+ 550 s 430 

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Additional Level Data and Comments:

  00+ 550 s 430  Measured mass excess=22476 keV 67 (2010Ch19).

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