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| Title | Development of an Online Emittance Monitor for Low Energy Heavy Ion Beams | |||||
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| Abstract | RIKEN's 18 GHz ECR ion source supplies the AVF cyclotron with beams ranging from protons to heavy ions as xenon. From comparison with the use of the RILAC (RIKEN Linear Accelerator) and beam transport simulations it was found that the transport efficiency is much lower. To this extend and with the aim to understand the ECR beam production, beam dynamics and optimize the beam transfer we have developed an emittance monitor based on the pepperpot method. The device is composed of a perforated copper plate, transparent scintillator and a CMOS camera for image capturing. Parameters of interest for scintillator's performance are the light yield and radiation hardness. Quartz was found to be resilient to damage and having linear light emission. A real time algorithm written in LabVIEW manages the data acquisition and the 4D phase space distribution calculation. Provided this information, we can investigate parameters such as inter-plane correlation and emittance dependence on extraction specifications, beam current and the magnetic field in the ion source. In this contribution we are presenting the emittance meter design, algorithm description and a set of typical measurements. | |||||
| Paper | download WEPB24.PDF [0.820 MB / 3 pages] | |||||
| Conference | HIAT2015, Yokohama, Japan | |||||
| Proceedings | Link to full HIAT2015 Proccedings | |||||
| Session | Wednesday Poster Session (B) | |||||
| Date | 09-Sep-15 16:00–18:00 | |||||
| Main Classification | Ion Sources, Traps, and Charge Breeding | |||||
| Keywords | emittance, ion, ion-source, extraction, real-time | |||||
| Publisher | JACoW, Geneva, Switzerland | |||||
| Editors | Osamu Kamigaito (RIKEN, Wako, Japan); Schaa, Volker R.W. (GSI, Darmstadt, Germany); Kazunari Yamada (RIKEN, Wako, Japan) | |||||
| ISBN | 978-3-95450-131-1 | |||||
| Published | February 2016 | |||||
| Series | Heavy Ion Accelerator Technology Conference (13th) | |||||
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