Journal of Radiation Safety and Measurement

Journal of Radiation Safety and Measurement

The Effect of the Configuration Type of Magnetic Magnets and Electric Electrodes on Thomson Ion Mass Spectrometer System

Document Type : Original Article

Authors
Samaneh Fazelpour
Amir Chakhmachi
Abdolreza Esmaili
Zohre Dehghani
Ali Nasiri
Plasma Physics and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute, P.O. Box 14155-1339, Tehran, Iran
10.22052/rsm.2026.257772.1152
Abstract
In this paper, a 3D comparative study of the Thomson ion mass spectrometer system with two different types of deflector configurations by COMSOL software is presented. In this study, two types of separate and common deflectors were used, in which magnetic magnets and electric electrodes were used separately or together, respectively, with same geometric specifications. In this simulation, in magnetic field of 0.248 Tesla and an electric field of 300 kV/m, we will examine the behavior of hydrogen, nitrogen, and carbon ions with energy range of 20 to 60 keV. Considering the parabolic traces at the same distance from the deflector for both cases, the advantages and disadvantages of both types of systems will be examined.
Keywords
Ion sources
Thomson spectrometer
Electric field
Magnetic field
Detec
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