Elastic recoil detection

Elastic Recoil Detection Analysis (Elastic Recoil Detection Analysis, short ERDA ) is a method in physics and materials science to obtain information about material compositions.

In the ERDA a particle beam of heavy ions (eg, Ar, Ni, Kr, or Xe) fired at a sample. The particle energy is in the range from 0.5 to 3 MeV per nucleon. Unlike Rutherford backscattering spectrometry ( RBS ) analysis is in this case detected under forward angles. Furthermore, the dispersed particle is not even, but the light scattered by the sample from this particle is detected. By means of a counter RE can thus not only the energy of the particle that has been scattered, detected (such as RBS), but also that the particles are.

ERDA measurements are primarily used for the detection of light elements. Accordingly, ERDA a complementary method to RBS dar.