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| Title | Electron-Beam-Driven RI Separator for SCRIT at RIKEN RI Beam Factory | |||||
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| Abstract | The electron-beam-driven RI separator for SCRIT (ERIS)* was constructed for the SCRIT (Self-Confinement RI Target) electron scattering facility** at RIKEN RI Beam Factory, and it is employed to produce low-energy, high-quality, and high-intensity RI beams used for the electron scattering of unstable nuclei. In ERIS, the photofission of uranium driven by an electron beam is used for RI production, and the estimated production rate of fission products is 2.2*10¹¹ fissions/s with 30-g uranium and a 1-kW electron beam. The RI production in ERIS has been operated since 2013. Uranium carbide is used as the production target, and it is obtained by the carbothermal reduction of uranium oxide in presence of carbon. The obtained disk was approximately 1 mm in a thickness and 18 mm in a diameter. The average mass concentration of uranium in the disk was estimated as 3.4 g/cm³. Recently, we improved the efficiency of release from the production target and that of transport from the target. As a result, the rate of 132Sn was 2.6*10⁵ atoms/s with 15-g uranium and a 10-W electron beam. In this paper, we report improvements and the present status of ERIS. | |||||
| Footnotes & References | * T. Ohnishi et. al: Nucl. Instr. Meth. B317, 357(2013). ** M. Wakasugi et. al: Nucl. Instr. Meth. B317, 668(2013). |
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| Paper | download WEPB02.PDF [0.883 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 | Radioactive Ion Beam Facilities | |||||
| Keywords | target, electron, ion, ion-source, scattering | |||||
| 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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