2-D energy analyzer for low energy electrons

Siddharth Karkare, Luca Cultrera, Yoon Woo Hwang, Richard Merluzzi, Ivan Bazarov

Research output: Contribution to journalArticle

8 Scopus citations


A 2-D electron energy analyzer is designed and constructed to measure the transverse and longitudinal energy distribution of low energy (<1 eV) electrons. The analyzer operates on the principle of adiabatic invariance and motion of low energy electrons in a strong longitudinal magnetic field. The operation of the analyzer is studied in detail and a design to optimize the energy resolution, signal to noise ratio, and physical size is presented. An energy resolution better than 6 meV has been demonstrated. Such an analyzer is a powerful tool to study the process of photoemission which limits the beam quality in modern accelerators.

Original languageEnglish (US)
Article number033301
JournalReview of Scientific Instruments
Issue number3
StatePublished - Mar 2015
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation

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    Karkare, S., Cultrera, L., Hwang, Y. W., Merluzzi, R., & Bazarov, I. (2015). 2-D energy analyzer for low energy electrons. Review of Scientific Instruments, 86(3), [033301]. https://doi.org/10.1063/1.4913655