提高IGISOL效率和束流质量的六极离子束导向器
A sextupole ion beam guide to improve the efficiency and beam quality at IGISOL
摘要：
在IGISOL设施，于韦斯屈莱的激光离子源项目，激发了射频六极离子束导向器（SPIG）的开发和建设，以取代原来的撇除电极。SPIG已经在质子诱导裂变、轻离子和重离子诱导的聚变蒸发反应中进行了离线和在线测试，并且在每种情况下，都直接与撇渣器系统进行了比较。对于裂变和轻离子诱导的聚变，SPIG将质量分离离子产率提高了通常4到8倍。相应地，这两个系统的传输效率进行了研究，在模拟和没有空间电荷效应。在空间电荷效应开始生效之前，SPIG的传输能力已经通过实验确定为10^12个离子/秒。与模拟的直接比较已通过光离子聚变蒸发获得的数据。实验和模拟都显示出令人鼓舞的协议作为从离子导向器提取的电流的函数。
英文摘要：
The laser ion source project at the IGISOL facility, Jyvaskyla, has motivated the development and construction of an rf sextupole ion beam guide (SPIG) to replace the original skimmer electrode. The SPIG has been tested both off-line and on-line in proton-induced fission, light-ion and heavy-ion induced fusion-evaporation reactions and, in each case, has been directly compared to the skimmer system. For both fission and light-ion induced fusion, the SPIG has improved the mass-separated ion yields by a factor of typically 4 to 8. Correspondingly, the transmission efficiency of both systems has been studied in simulations with and without space charge effects. The transport capacity of the SPIG has been experimentally determined to be 10^12 ions/s before space charge effects start to take effect. A direct comparison with the simulation has been made using data obtained via light-ion fusion evaporation. Both experiment and simulation show an encouraging agreement as a function of current extracted from the ion guide.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
