ADOPTED LEVELS for 37Al

Authors: John Cameron, Jun Chen and Balraj Singh, Ninel Nica |  Citation: Nucl. Data Sheets 113, 365 (2012) |  Cutoff date: 15-Jan-2012 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=1.640×104 keV 15S(n)= 4.21×103 keV 16S(p)= 1.79×104 keV 5Q(α)= -1.66×104 keV SY
Reference: 2012WA38

General Comments:

Mass measurements: 2007Ju03, 2000Sa21 (also 2001Sa72), 1991Or01

Radius and cross section measurements: 2006Kh08

1991Or01: identification and production of 37Al in Ta(48Ca,X) at 55 MeV/nucleon, SPEG spectrometer at GANIL facility, energy loss and time-of-flight methods. Measured mass excess=9.60 MeV 54

1999YoZW: Fragmentation of 70 MeV/nucleon 48Ca beam by Be and Ta targets. Projectile fragment separator at RIKEN facility, measured half-life and delayed-neutron emission probability.

2000Sa21 (also 2001Sa72): Fragmentation of 60 MeV/nucleon 48Ca beam with Ta target, SPEG spectrometer at GANIL facility, energy loss and time-of-flight techniques. Measured mass excess

2004Gr20 (also 2003Gr22): Fragmentation of 60 MeV/nucleon 48Ca beam with Be target, LISE3 spectrometer at GANIL facility, energy loss and time-of-flight techniques. Measured isotopic half-life using β(fragment implant) correlations.

2006Kh08: Si(37Al,X) E=42.94 and 37.42 MeV/nucleon. Measured cross sections and average radius at GANIL facility

2007Ju03: Fragmentation of 60.3 MeV/nucleon beam with Ta target, SPEG spectrometer at GANIL facility. Measured mass excess=9810 120. Average value recommended=9830 110

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

Q-value: Estimated ΔQ(α)=608 (2011AuZZ)

Q-value: Q(β-n)=14156 133, S(2n)=6113 139, S(2p)=42609 598 (syst) (2011AuZZ)

Q-value: Values in 2003Au03: Q(β-)=16530 370, S(n)=3910 390, S(p)=18770 600 (syst), Q(α)=-17370 940, S(2n)=6070 370, S(2p)=44210 1000 (syst), Q(β-n)=14360 350




E(level)
(keV)
T1/2(level)
  0 10.7 ms 13 
% β- = 100
% β-n = ?

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0 10.7 ms 13 
% β- = 100
% β-n = ?
-n=55 11 (tentative value measured by 1999YoZW). Predicted decay modes from calculations of 1997Mo25: %β-n=6.3, %β-2n=1.6.
E(level): %β-n=55 11 (tentative value measured by 1999YoZW). Predicted decay modes from calculations of 1997Mo25: %β-n=6.3, %β-2n=1.6.

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