Elastic backscatter detection analysis
Elastic recoil detection ( E lastic R eCoil D etection A nalysis, shortly ERDA) is a method in physics and materials science to win, statements related to material compositions.
In the ERDA, a particle beam of heavy ions (e.g. Ar, Ni, Kr or Xe) is shot at a sample. The particle energy is in the range of 0.5 - 3 MeV per nucleon . In contrast to Rutherford Backscattering Spectrometry (RBS) analyzes, detection is carried out at forward angles. Furthermore, it is not the scattered particle beam itself that is detected, but the particles scattered by it from the sample. Using an EE counter, not only can the energy of the particle that was scattered be detected (as with RBS), but also which particle it is.
ERDA measurements are mainly used to detect light elements. Accordingly, ERDA is a complementary process to RBS.