element
Information about Helium-9:

(no NIST x-ray data)(no NIST attenuation data)
WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:9.043820±0.000067amu
    Excess Mass (Δ):40.818362±0.062471MeV
    Binding Energy:30.258837±0.062471MeV
    β- Decay Energy:15.864459±0.062499MeV
"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.
Radioactive Decay Data:

  • Spin: (1/2-)
  • Half life: 0.3 MeV (1.5e-06 fs) ( 0 sec., λ = inf s-1)
  • Mode of decay:
    1
    0
    n emission to
    8
    2
    He
      (Q = 1.150 MeV)
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)