Materials analysis with a nuclear microprobe
The ability to produce focused beams of a few MeV light ions from Van de Graaff accelerators has resulted in the development of nuclear microprobes. Rutherford backscattering, nuclear reactions, and particle-induced x-ray emission are used to provide spatially resolved information from the near surface region of materials. Rutherford backscattering provides nondestructive depth and mass resolution. Nuclear reactions are sensitive to light elements (Z < 15). Particle-induced x-ray analysis is similar to electron microprobe analysis, but 2 orders of magnitude more sensitive. The focused beams are usually produced with specially designed multiplets of magnetic quadrupoles. The LASL microprobe uses a superconducting solenoid as a final lens. The data are acquired by a computer interfaced to the experiment with CAMAC. The characteristics of the information acquired with a nuclear microprobe are discussed; the means of producing the beams of nuclear particles are described; and the limitations and applications of such systems are given.
- Research Organization:
- Los Alamos Scientific Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5596086
- Report Number(s):
- LA-UR-80-390; CONF-800413-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360603 -- Materials-- Properties
440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCELERATORS
ANNEALING
ARSENIC COMPOUNDS
ARSENIDES
BACKSCATTERING
BEAM OPTICS
CHALCOGENIDES
COPPER
DEPOSITION
ELASTIC SCATTERING
ELECTROSTATIC ACCELERATORS
ELEMENTS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GOLD
HEAT TREATMENTS
INTERFACES
LASERS
LENSES
MATERIALS
METALS
NUCLEAR REACTIONS
OPERATION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
PNICTIDES
PROBES
RADIATION EFFECTS
RUTHERFORD SCATTERING
SCATTERING
SEMICONDUCTOR MATERIALS
SURFACE COATING
SURFACES
TRANSITION ELEMENTS
VAN DE GRAAFF ACCELERATORS