A Design Approach to Characterize Multibeam Cathode using Thermionic Emission Microscope

Shukla, SK and Rajoriya, N and Raju, RS (2011) A Design Approach to Characterize Multibeam Cathode using Thermionic Emission Microscope. In: VEDA - 2011, November 18 - 19, 2011, Ghaziabad, India. (Submitted)

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Abstract

Thermionic emission microscope (THEM) is an important analytical research tool for studying the electron emission uniformity of a thermionic cathode. The criticality of its design and development stems from the inhomogeneous emission nature of impregnated cathode surface. In this paper, a design approach of lens and deflection plates is described for a multibeam cathode (MBC). The design of lens is carried out using 2D TRAK and the design of deflection system using OmniTRAK 3D to ensure required deflection of beam without losing laminarity and beam interception with deflection plates. The simulation studies show that THEM could be used as an effective tool to study MBC.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	THEM, 2D TRAK, MBC, OmniTRAK 3D,
Subjects:	?? TK ?? Microwave Tubes > Cathodes
Divisions:	Microwave Tubes
Depositing User:	Mr. Rohit Singh
Date Deposited:	20 May 2013 12:02
Last Modified:	20 May 2013 12:02
URI:	http://ceeri.csircentral.net/id/eprint/87

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