Research

Helium

Symbol: He

Atomic Number: 2
Atomic Weight (Average): 4.002599

Mass (amu)  4.002603
Abundance 99.99986

IBA Techniques to Analyze:

  • RBS (Rutherford BackScattering)
    Sensitivity >1.E-3 atomic fraction
    Analysis Range <1.E+3 nm
    Depth Resolution <1.E+2 nm
    Mass Resolution (FWHM atomic number): 1
  • NRA (Nuclear Reaction Analysis)
    Sensitivity >1.E-2 atomic fraction
    Depth Resolution <1.E+3 nm
    Analysis Range <1.E+2 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 Link:

Proton Elastic Scattering


Point of Contact: Barney L. Doyle