• Development of an experimental facility for studying atomic-field, bremsstrahlung from keV electrons interacting with atoms and molecules

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    • Keywords


      Atomic-field bremsstrahlung; electron gun; isolated floating high voltage system

    • Abstract


      A dedicated working setup for studying the process of atomic-field bremsstrahlung and its dependence on various parameters for keV electrons incident on a solid or a gaseous target has been indigenously developed. The setup consists of a high vacuum scattering chamber attached with a rotatable X-ray photon detector, a home-built high voltage electron gun with a replaceable tungsten-filament cathode, an isolated floating high voltage system, high vacuum pumping units, various signal processing electronic modules and an IBM PC/XT based 4K-multichannel analyzer. A brief description of the facility is presented. The performance of the facility has been tested by recording the bremsstrahlung spectra from 7.0 keV electrons on thin Ag, Au and 7.5 keV electrons on Hf targets; the corresponding spectra are presented and discussed. The gun can operate in the range of 0–8.0 kV accelerating voltage in the present configuration. Other feasible experiments that can be performed on the setup are also briefly mentioned.

    • Author Affiliations


      S K Goel1 M J Singh1 R Shanker1

      1. Atomic Physics Laboratory, Department of Physics, Banaras Hindu University, Varanasi - 221 005, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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