Development of H− multicusp ion source
作者机构：Nuclear Engineering and Physics DepartmentAmirkabir University of TechnologyTehran 15875-4413Iran Plasma Physics and Nuclear Fusion Research DepartmentNuclear Science and Technology Research InstituteAEOIPO Box 14155-1339TehranIran
出 版 物：《Radiation Detection Technology and Methods》 (辐射探测技术与方法（英文）)
年 卷 期：2018年第2卷第1期
页 面：186-189页
学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学]
主 题：Multicusp ion source Extraction Electron tracking Perveance Angular divergence
摘 要：Introduction The ion source is one of the key devices for the high-intensity cyclotron,which exerts influence on the beam intensity and applications of the *** paper will provide an introduction to current measures and present relevant experimental study as well as the beam test *** The existing ion source of the accelerator has a 2-mA output *** aim is to increase the current to roughly 5 mA to decrease the reaction time of ***,a new ion source was *** this end,some simulations were performed,and the simulated ion source was constructed,and then some measurements were *** and materials The CST code is used to simulate the chamber and extraction *** construction,some materials such as copper and stainless steel are *** wire of 2.1 mm diameter was developed to reach high beam *** and rotary pump is chosen for system *** cup can be used for *** magnets for plasma confinement are made of Nd–Fe–B *** The source assembly consists of a tubular plasma chamber(inner diameter:100 mm;length:150 mm)with 12 columns of permanent magnets(Nd–Fe–B material)to provide a stronger multicusp field,a three-electrode extraction system,and a top cover with a confinement magnet ***,5 mA H−beam can be extracted from the ion source with a plasma electrode aperture of 13 mm under an arc power of 6 *** optimum H2 gas flow rate and the change of pressure found during the tuning process of the ion source are presented.
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