An imaging atom probe using a single time-gated channel plate
- 1 January 1978
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 11 (1) , 49-52
- https://doi.org/10.1088/0022-3735/11/1/012
Abstract
The paper describes the construction and performance of an atom-probe field-ion microscope which uses a time-gated microchannel plate as a single-ion detector with spatial resolution. The instrument has a mass resolution Delta m/m in the range 1/15 to 1/25, and a spatial resolution of the order of 1 nm. It is particularly suitable for the detection of segregation at grain boundaries, and an example (oxygen in molybdenum) is given.Keywords
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