Study on the microwave ion source of 100-MeV proton linac

TL;DR

This paper presents the development and testing of a microwave ion source for a 100-MeV proton linac, detailing its specifications, operation mode, and beam characteristics measurement methods.

Contribution

It introduces a microwave ion source with specific parameters for a 100-MeV proton accelerator and reports on its beam characteristics and test stand setup.

Findings

Successful operation of the CW microwave ion source

Measurement of pulse beam characteristics

Implementation of a test stand for offline studies

Abstract

A microwave ion source is used as an ion source of 100-MeV proton accelerator at Korea Multipurpose Accelerator Complex (KOMAC). The specifications of the ion source are 50 keV in energy and 20 mA in peak current. The plasma is operated in CW mode using magnetron and the pulse beam is extracted using semiconductor switch located in the extraction power supply. The beam characteristics were measured based on the pulse voltage and current. A test stand was also installed to study the beam characteristics of the ion source in off-line. In this paper, the pulse beam characteristics of the ion source are presented and the installation of the test stand is reported.