Authors: Balraj Singh and Michael Birch |  Citation: ENSDF |  Cutoff date: 31-MAY-2011 

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=4.7×103 keV SYS(n)= 6.1×103 keV SY
Reference: 2012WA38

General Comments:

2009St16, 2008StZY thesis: 191Ta nuclide identified in the reaction 9Be(208Pb,X) with a beam energy of 1 GeV/nucleon produced by the SIS-18 accelerator at GSI facility. Target thickness=2.5 g/cm2. Fragments identified in flight by the Fragment Separator (FRS) operated in achromatic mode based on time of flight, Bρ and energy loss. Data collected on six FRS magnetic rigidity settings centered on: 206Hg, 203Ir, 202Os, 199Os, 192W, and 185Lu. Nuclides halted in a passive stopper surrounded by the RISING array in "Stopped Beam " configuration.

Experimental identification of 191Ta also reported in 2009Al30.

Q-value: Note: Current evaluation has used the following Q record

Q-value: Estimated uncertainties in 2011AuZZ: 540 for Q(β-), 640 for S(n)

Q-value: Q(β-), S(n) from 2011AuZZ; S(p), Q(α) from 1997Mo25

Q-value: S(2n)=10810 590 (syst,2011AuZZ), S(2p)=20140 (1997Mo25,calculated)

  0 > 300 ns
% β- = ?

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Additional Level Data and Comments:

  0 > 300 ns
% β- = ?
The β- decay is the only decay mode expected.

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