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TY - UNPB AU - Choi, S. AU - Bahng, J. AU - Hong, J.G. AU - Kim, S.J. AU - Lee, B.S. AU - Ok, J.W. AU - Park, J.Y. AU - Won, M. AU - Yoon, J.H. ED - Schaa, Volker RW TI - Development Status of 28 GHz Superconducting ECR Ion Source for the KBSI Accelerator J2 - Proc. of ECRIS2016, Busan, Korea, August 28 - September 1, 2016 C1 - Busan, Korea T2 - International Workshop on ECR Ion Sources T3 - 22 LA - english AB - A 28 GHz superconducting ECR ion source has been developed as an injector apparatus for heavy ion accelerator of KBSI. The final goal of accelerated ion beam was aimed to generate fast neutrons with the proton target by p(Li, n)Be reaction under inverse kinematics scheme. In 2014, most of parts for ECR ion source was developed and assembled. We have made the first ECR plasma generation and ion beam extraction, which was reported in 2014. For optimizing the operational issues of ECR ion source, we carried out various experiments with respect to several species of ion beam. Recently, we have encountered to maintain the cryogenics for superconudcting magnet due to the operating time of cryocooler and compressor. We modified three parts during maintanance: (1) installation of iron pole in the hexapole magnet to enhance the radial magnetic field, (2)new recondensation device to increase the efficiency of the liquid helium liquification, (3)bias disk modification for better beam extraction. We will present the current status and further modificaion effect on the 28 GHz superconducting ECR ion source of KBSI. PB - JACoW CP - Geneva, Switzerland ER -