JPS Conf. Proc. 6, 030107 (2015) [4 pages]
Proceedings of the Conference on Advances in Radioactive Isotope Science (ARIS2014)
Performance of New Gas-Filled Recoil Ion Separator GARIS-II for Asymmetric Fusion Reaction
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1RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
2Yamagata University, Yamagata 990-8560, Japan
3Saitama University, Saitama 338-8570, Japan
4Tokyo University of Science, Noda, Chiba 278-8510, Japan
5Niigata University, Niigata 950-2181, Japan
6Tohoku University, Sendai 982-0826, Japan
7Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
8Kushu University, Fukuoka 812-8581, Japan
Received July 31, 2014
Background level at focal plane of GARIS-II and transmission were investigated using asymmetric 22Ne-induced fusion reactions. The usage of He-H2 mixture as a fill gas enables to decrease the background level and to increase the transmission. A target-identification system was newly installed for effective measurement of excitation function during short time without changing the beam energy provided from accelerated.
©2015 The Physical Society of Japan
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