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Effect of Space Charge on the Performance of Coaxial Cavity High Power Gyrotron

Manisha Kumari

Department of Basic Science, Shridhar University, Rajasthan, India

Mohini Dwivedi

Department of Basic Science, Shridhar University, Rajasthan, India

32-36

Vol: 15, Issue: 3, 2025

Receiving Date: 2026-07-24 Acceptance Date:

2025-08-19

Publication Date:

2025-08-21

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http://doi.org/10.37648/ijrst.v15i03.004

Abstract

A detail parametric study of space charge effect related to coaxial insert of 2 MW, 140 GHz coaxial gyrotron is discussed in this manuscript. Corrugation is done in the coaxial insert to minimize the Ohmic wall loading. The geometry of corrugated coaxial insert seriously affects the space charge effect in a gyrotron. Space charge effect is very critical especially for multi-megawatt high frequency gyrotrons. Considering all these facts, a detail parametric study of coaxial insert is performed for 140 GHz coaxial gyrotron in this article.

Keywords: Coaxial; space charge effect; coaxial insert

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