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TY - CONF AU - Fang, X. AU - Cao, Y. AU - Chen, R.F. AU - Li, X.X. AU - Lu, W. AU - Ma, B.H. AU - Qian, C. AU - Sun, L.T. AU - Wang, H. AU - Wu, J.X. AU - Yang, Y. AU - Yuan, Y.J. AU - Zhang, X.Z. AU - Zhao, H.W. ED - Zhao, Hongwei ED - He, Yuan ED - Li, Lu ED - Schaa, Volker RW TI - Development of a Pepper Pot Probe to Measure the Four-Dimensional Emittance of Low Energy Beam of Electron Cyclotron Resonance Ion Source at IMP J2 - Proc. of HIAT2018, Lanzhou, China, 22-26 October 2018 CY - Lanzhou, China T2 - International Conference on Heavy Ion Accelerator Technology T3 - 14 LA - english AB - The ion beams extracted from an Electron Cyclotron Resonance (ECR) ion source always exist strong transverse coupling effect that is caused by the field of the axis mirror magnets and the extraction solenoid. A Pepper Pot probe was developed and used to obtain the full four-dimensional phase space distribution of the low energy beam extracted from the ECR ion source at IMP. This paper describes the design of the Pepper Pot, the setup configuration, the detailed image processing procedure, especially the analysis results verification compared to another type emittance meter. The first four-dimensional emittance is also determined through the Pepper Pot probe. The transverse phase space distribution measurement data of oxygen beams from the LECR4 experimental platform are presented and discussed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 57 EP - 60 KW - emittance KW - ECR KW - ion-source KW - solenoid KW - electron DA - 2019/11 PY - 2019 SN - 978-3-95450-203-5 DO - doi:10.18429/JACoW-HIAT2018-MOPB15 UR - http://jacow.org/hiat2018/papers/mopb15.pdf ER -