An Accelerator Technique for the Study of Ballistic Surfaces.
Abstract
Specific nuclear reactions produced by energetic accelerator beams can be used to detect the presence of various elements on ballistic surfaces. A technique using the reaction 16O(d, alpha sub o) 14N has been developed in order to detect oxygen depth concentration profiles on the surface of a thick slab of iron. Tests with idealized thin oxygen targets have been carried out to show the capabilities of the technique. The detectability level achieved is 2 x 10 to the 16 power atoms/sq cm which corresponds to about 10 atomic layers, the probing depth is 5 micrometers at a deuteron bombarding energy of 3 MeV, and the optimum depth resolution is about 100 A. Iron surfaces which have been exposed to the erosive environments of burning propellants have also been examined. The results of these tests show that significant differences in the oxygen depth concentration profiles are observed for surfaces which have undergone different exposure histories.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1975
- Accession Number
- ADA016899
Entities
People
- A. Niiler
- J. E. Youngblood
- S. E. Caldwell
- T. J. Rock
Organizations
- Ballistic Research Laboratory