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2. I.G. Brown, The Physics and Technology of Ion Sources, 2nd edn. (Wiley-VCH, Hoboken, 2004)
3. D.-I. Kim et al., Installation of test-stand for conditioning of the microwave ion source at KOMAC (Transactions of the Korean Nuclear Society Spring Meeting, Jeju, 2021)
4. D.-I. Kim et al., Fabrication of a plasma chamber with water cooling for a microwave ion source at KOMAC (Transactions of the Korean Nuclear Society Spring Meeting, Jeju, 2022)
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