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Updated: Jun 22, 2026

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
Published on: April 3, 2018
Photogeneration of electrons in dust clouds in near space
Mahendra Singh Sodha1, Amrit Dixit, Sweta Srivastava
1Disha Institute of Management and Technology, Satya Vihar, Vidhan Sabha-Chandrakhuri Marg, Mandir Hasaud, Raipur, 492101 Chattisgarh, India. msodha@rediffmail.com
Abstract:
This paper presents an investigation of electron density and electron temperature in a dust cloud, subject to radiation, which causes photoelectric emission of electrons. The analysis is based on charge neutrality and number and energy balance of electrons. Appropriate expressions for the photoelectric emission and mean energy of emitted photoelectrons have been employed. The parametric relationship, corresponding to dust of stainless steel (as an illustration) in the near space environment, with dominant Lyman alpha (1215.7 A) radiation in the extreme ultraviolet part of the spectrum, has been investigated.
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