期刊
JOURNAL OF INSTRUMENTATION
卷 6, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1748-0221/6/02/P02004
关键词
Instrumentation for radioactive beams (fragmentation devices; fragment and isotope, separators incl. ISOL; isobar separators; ion and atom traps; weak-beam diagnostics; radioactive-beam ion sources); Instrumentation for particle accelerators and storage rings - low energy (linear accelerators, cyclotrons, electrostatic accelerators); Low-energy ion storage; Ion sources (positive ions, negative ions, electron cyclotron resonance (ECR), electron beam (EBIS))
资金
- Council of Scientific and Industrial Research (CSIR), India
A three-element einzel lens is a standard ion optics used to focus a low energy ion beam. In certain applications like injection of a low energy ion beam into a strong magnetic field of a Penning trap, it is necessary to combine a lens with a small angle beam steerer. The middle electrode is often slit in parallel or diagonal in order to combine the steering field with the focusing field. Here we study and analyze the performances of these two designs of same dimension and show that the diagonal-slit configuration is the better choice to achieve comparatively larger steering and focusing within acceptable aberration.
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