The 10 cm Atom Probe
Abstract
A novel atom probe is described which can determine the mass-to-charge ratios of all ion species produced during a single desorption event or of individual species at several preselected crystallographic locations during each desorption event. This is accomplished without tip movement in an instrument no larger than a conventional field ion microscope by using a new channel plate photomultiplier detector. Alignment, aiming, and pulse stability problems common to all previous designs have been eliminated. Although the present mass resolution is 4 amu at m/n = 184/3, single isotope resolution, if desired, seems possible.
- Publication:
-
Review of Scientific Instruments
- Pub Date:
- August 1973
- DOI:
- 10.1063/1.1686295
- Bibcode:
- 1973RScI...44.1034P