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Optimization of a low-energy, high brightness electron gun for inverse photoemission spectrometers

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2 Author(s)
Raj, S. ; Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012, India ; Sarma, D.D.

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Availability of a low-energy, high current electron gun delivering a well-focused spot on the sample is essential for the inverse photoelectron spectroscopy. We have optimized an electron gun to obtain the maximum beam current at all electron kinetic energies of relevance with a reasonably small focus spot. Here we present the design, the procedure for the optimization, as well as the resulting characteristics of the electron gun. © 2004 American Institute of Physics.

Published in:

Review of Scientific Instruments  (Volume:75 ,  Issue: 4 )