Authors: Balraj Singh Et Al., |  Citation: Nucl. Data Sheets 175, 1 (2021) |  Cutoff date: 19-May-2021 

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=-6140 keV 90S(n)= 6670 keV 19S(p)= 2643 keV 22Q(α)= 9950 keV 12
Reference: 2021WA16

General Comments:

1994Ye08, 1993An07, 1994AnZY: 219U activity was produced in 197Au(27Al,5n),E=149 MeV reaction, and separated using the electrostatic recoil separator VASSILISSA. 219U fragment was identified through the α-decay chain by α-α time correlation and genetic position analysis. Both α decays from the daughter-(215Th) and from the granddaughter (211Ra) nuclei were observed.

2007Le14 (also 2005Le42): 219U produced in 182W(40Ar,X), E=191,197 MeV at JYFL, Jyvaskyla facility, RITU separator, GREAT spectrometer for particle detection. Measured α-particle spectrum and half-life of 219U

2019Zh54: 219U formed in 183W(40Ar,4n),E=188 MeV, followed by separation of evaporation residues (ERs) using SHANS separator at the HRIFL-Lanzhou facility. Measured Er-α12 correlations, Eα and half-life of the decay of 219U

Theoretical calculations: 26 primary references in the NSR database (, two related to structure calculations, and 24 to radioactivity

Q-value: S(2n)=15820 80 (syst), S(2p)=3488 17, Q(εp)=3640 17 (2021Wa16)

  0 60 µs 7 
% α = 100

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Additional Level Data and Comments:

  0 60 µs 7 
% α = 100
%ε+%β+=3.5×10-5, (2019Mo01,theory).
E(level): %ε+%β+=3.5×10-5, (2019Mo01,theory).

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