Modification of KOMAC Microwave Ion Source

In this paper, we will present the modification process of KOMAC microwave ion source. The modification of KOMAC microwave ion source was described. To operate accelerator more stable and safe, electrical insulation of solenoid magnet and extractor body was improved. Additional modifications for higher ion beam current extraction are in progress. A compact 2.45 GHz microwave ion source has been utilized for KOMAC 100 MeV proton linear accelerator. For stable and safe operation, KOMAC 100 MeV proton linear accelerator requires highly reliable microwave ion source. Since magnet and plasma chamber are not insulated, solenoid magnet of the microwave ion source currently being used for KOMAC is induced by high DC voltage. Therefore, there is not only a risk of electric shock during operation and maintenance, but also it results in the system fault and unwanted maintenance sometimes. Besides, to extract higher ion beam current, operating parameter of microwave plasma was checked and additional modification plans are preparing