Accession Number : ADA185769

Title :   Stopping Power Effects on Rutherford Backscattering Analysis in Thick Targets.

Descriptive Note : Memorandum rept.,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Niiler, Andrus

PDF Url : ADA185769

Report Date : Jul 1987

Pagination or Media Count : 26

Abstract : Rutherford Backscattering (RBS) analysis has become an increasingly important method of characterizing material surface. Its advantages lie in the fact it is non-destructive and can yield absolute results on elemental constituents as well as their depth concentration profiles. The accuracy of stopping powers of ions in matter are one of the major factors which affect the accuracy of RBS. The RBS simulation code PROFILE is used to analyze samples containing Cu, Ni, and A1 with several different sets of stopping powers. The results indicate that a given uncertainty in the stopping power may lead to equivalent uncertainties in elemental concentrations and thickness of coatings. The results also indicate that the analysis of thick target RBS data with a complete simulation code such as PROFILE may be very valuable in determining stopping powers of elements.

Descriptors :   *METAL COATINGS, *ELASTIC SCATTERING, ACCURACY, BACKSCATTERING, CODING, IONS, MATERIALS, POWER, SIMULATION, STOPPING, SURFACES, TARGETS, THICKNESS, PARTICLE ACCELERATOR TARGETS, SCATTERING CROSS SECTIONS, SPECTRAL ENERGY DISTRIBUTION, ION BEAMS, DEPTH, COPPER, NICKEL, ALUMINUM, SURFACE PROPERTIES

Subject Categories : Properties of Metals and Alloys
      Coatings, Colorants and Finishes
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE