Fast computer-controlled mirror system for intensity measurements in low-energy electron diffraction
- 1 February 1982
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 53 (2) , 221-224
- https://doi.org/10.1063/1.1136931
Abstract
A plane mirror rotatable about two orthogonal axes has been developed for imaging low‐energy electron diffraction(LEED) spots into a photometer tube. The mirror is driven by stepping motors and controlled by a PDP 11 computer. Using a sequence of primary‐beam energy values in steps of 2 eV the acquistion time for the normalized intensity data from one diffraction beam between 30–200 eV takes approximately 10 s.Keywords
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