Symbol: He

Atomic Number: 2
Atomic Weight (Average): 4.002599

Mass (amu) 3.016029
Abundance 0.00014

IBA Techniques to Analyze:

  • NRA (Nuclear Reaction Analysis)
    Sensitivity >1.E-3 atomic fraction
    Depth Resolution <1.E+3 nm
    Analysis Range <1.E+3 nm
  • ERD (Elastic Recoil Detection)
    Sensitivity >1.E-4 atomic fraction
    Analysis Range <1.E+3 nm
    Depth Resolution <1.E+2 nm

Unique to Element Web Site Links:

Nuclear Reaction

Proton Elastic Scattering

Point of Contact: Barney L. Doyle