ADOPTED LEVELS for 40Al

Author: Jun Chen |  Citation: Nucl. Data Sheets 140, 1 (2017) |  Cutoff date: 30-Sep-2015 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=22540 keV SYS(n)= 1090 keV SYS(p)= 21590 keV SYQ(α)= -20360 keV SY
Reference: 2012WA38

General Comments:

First identification of 40Al nuclide by 1997Sa14.

40Al isotope identified in 181Ta(48Ca,X) reaction at E=70 MeV/nucleon (1997Sa14). α total of 34 events were observed in this study. In 1996Sa34 (from the same group as 1997Sa14) only one event was tentatively assigned to 40Al.

Structure calculations: 2013Li39 (levels, T1/2, β-delayed emission probabilities, log ft, branching ratios), 2013Sh05 (binding energy, charge radii, deformation parameter)

Q-value: Δ(Q(β-))=550, Δ(S(n))=710, Δ(S(p))=720, Δ(Q(α))=780 (syst,2012Wa38)

Q-value: S(2n)=4380 560, Q(β-n)=17580 510 (syst,2012Wa38)




E(level)
(keV)
T1/2(level)
  0.0 > 260 ns
% β- = 100
% β-n = ?
% β-2n = ?

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0.0 > 260 ns
% β- = 100
% β-n = ?
% β-2n = ?
Theoretical %β-n=15.6, %β-2n=73.8, %β-3n=8.5 (2003Mo09).

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