ANALYSIS OF A VERY ROUGH SAMPLE BY ACCELERATOR TECHNIQUES

The results of a study of various surfaces formed from arrangements of 100 compacted razor blades are presented. The analysis was performed by means of RES and the samples were characterized using microscopic t echniques. Several surfaces were considered, one containing Pt traces on the blade edges, another without this clement and a third, also wit hout Pt, but well oxidized. The surfaces were bombarded with protons o f energies of hundreds of keV and of a few MeV. An analysis was also p erformed with helium ions of several MeV energy. From the experimental results, knowledge of some topographical characteristics of the model s was obtained. With an increase in ion energy some trace impurities w ere detected and with helium ions an inhomogeneous distribution of the Pt was observed.