18-Ar-39
 basic
 XS graphs

 element
18-argon-39

  • Atomic Mass: 38.9643134 +- 0.0000054 amu
  • Excess Mass: -33241.836 +- 5.008 keV
  • Binding Energy: 333941.065 +- 5.008 keV
  • Beta Decay Energy: B- 565.000 +- 5.000 keV
"The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra, Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995.
  • Spin: 7/2-
  • Half life: 269 years
  • Mode of decay: Beta to K-39
    • Decay energy: 0.565 MeV

  • Possible parent nuclides:
    Beta from Cl-39
R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)
Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev)T1/2Spin    m(nm)    Q(b)    Ref. Std.MethodReference
0269 y7/2- -1.588(15) [37Ar]CFBLS/b-NMRNP A607 1 (96)
-1.3(3) OJOSA 57 1452 (67)
-0.12(3) [37Ar]CFBLS/b-NMRNP A607 1 (96)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.