HIAT2015 - List of Authors (Yamaka, S.)

Paper	Title	Page
MOPA12	Status Report of the Operation of the RIKEN AVF Cyclotron	65
	K. Suda, M. Fujimaki, N. Fukunishi, T. Kageyama, O. Kamigaito, M. Kase, M. Komiyama, K. Kumagai, T. Maie, M. Nagase, T. Nagatomo, T. Nakagawa, H. Okuno, N. Sakamoto, A. Uchiyama, T. Watanabe, Y. Watanabe, K. Yamada RIKEN Nishina Center, Wako, Japan S. Fukuzawa, M. Hamanaka, S. Ishikawa, K. Kobayashi, R. Koyama, T. Nakamura, M. Nishida, M. Nishimura, J. Shibata, N. Tsukiori, K. Yadomi SHI Accelerator Service Ltd., Tokyo, Japan Y. Kotaka, Y. Ohshiro, S. Yamaka CNS, Saitama, Japan
	The RIKEN AVF cyclotron was commissioned in 1989. Since then, it has been operated as an injector for the RIKEN ring cyclotron. The AVF cyclotron also provides low energy ion beams for the Radio-Isotope Beam separator (CRIB) of the Center for Nuclear Study (CNS), the University of Tokyo, as well as to produce RIs for commercial use. The operating time is more than 3,000 hours per year. We will report the operating status (nuclear species, energy, supply destination of accelerated ions), troubles, maintenance work, and the improvement of ion sources and diagnostics tools for the period from August 2014 to July 2015.
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WEPB29	Observation of Sublimation Effect of Mg and Ti Ions at the Hyper-Electron Cyclotron Resonance Ion Source	262
	H. Muto, Y. Kotaka, S. Kubono, Y. Ohshiro, S. Shimoura, S.-I. Watanabe, H. Yamaguchi, S. Yamaka CNS, Saitama, Japan T. Hattori NIRS, Chiba-shi, Japan M. Kase, S. Kubono RIKEN Nishina Center, Wako, Japan K. Kobayashi, M. Nishimura SHI Accelerator Service Ltd., Tokyo, Japan M. Oyaizu KEK, Ibaraki, Japan
	Light intensities of a grating monochromator during plasma chamber baking and 24Mg⁸⁺ and 48Ti¹³⁺ beam operation were observed at the Hyper-Electron Cyclotron Resonance ion source. During chamber baking almost all light intensities were Fe I and Fe II. However, when MgO or TiO2 rod was inserted into the plasma and the beam operation was started the light intensity spectrum was drastically changed and most of the Fe I and Fe II lights were disappeared and Mg or Ti light intensities were coming out. In this paper we describe vacuum conditions of ECR ion source during chamber baking and beam tuning.
	Poster WEPB29 [7.060 MB]
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Paper

Title

Page

Status Report of the Operation of the RIKEN AVF Cyclotron

65

K. Suda, M. Fujimaki, N. Fukunishi, T. Kageyama, O. Kamigaito, M. Kase, M. Komiyama, K. Kumagai, T. Maie, M. Nagase, T. Nagatomo, T. Nakagawa, H. Okuno, N. Sakamoto, A. Uchiyama, T. Watanabe, Y. Watanabe, K. Yamada
RIKEN Nishina Center, Wako, Japan
S. Fukuzawa, M. Hamanaka, S. Ishikawa, K. Kobayashi, R. Koyama, T. Nakamura, M. Nishida, M. Nishimura, J. Shibata, N. Tsukiori, K. Yadomi
SHI Accelerator Service Ltd., Tokyo, Japan
Y. Kotaka, Y. Ohshiro, S. Yamaka
CNS, Saitama, Japan

The RIKEN AVF cyclotron was commissioned in 1989. Since then, it has been operated as an injector for the RIKEN ring cyclotron. The AVF cyclotron also provides low energy ion beams for the Radio-Isotope Beam separator (CRIB) of the Center for Nuclear Study (CNS), the University of Tokyo, as well as to produce RIs for commercial use. The operating time is more than 3,000 hours per year. We will report the operating status (nuclear species, energy, supply destination of accelerated ions), troubles, maintenance work, and the improvement of ion sources and diagnostics tools for the period from August 2014 to July 2015.

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reference for this paper to ※ BibTeX, ※ LaTeX, ※ Text, ※ RIS/RefMan, ※ EndNote (xml)

WEPB29

Observation of Sublimation Effect of Mg and Ti Ions at the Hyper-Electron Cyclotron Resonance Ion Source

262

H. Muto, Y. Kotaka, S. Kubono, Y. Ohshiro, S. Shimoura, S.-I. Watanabe, H. Yamaguchi, S. Yamaka
CNS, Saitama, Japan
T. Hattori
NIRS, Chiba-shi, Japan
M. Kase, S. Kubono
RIKEN Nishina Center, Wako, Japan
K. Kobayashi, M. Nishimura
SHI Accelerator Service Ltd., Tokyo, Japan
M. Oyaizu
KEK, Ibaraki, Japan

Light intensities of a grating monochromator during plasma chamber baking and 24Mg⁸⁺ and 48Ti¹³⁺ beam operation were observed at the Hyper-Electron Cyclotron Resonance ion source. During chamber baking almost all light intensities were Fe I and Fe II. However, when MgO or TiO2 rod was inserted into the plasma and the beam operation was started the light intensity spectrum was drastically changed and most of the Fe I and Fe II lights were disappeared and Mg or Ti light intensities were coming out. In this paper we describe vacuum conditions of ECR ion source during chamber baking and beam tuning.

Poster WEPB29 [7.060 MB]

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reference for this paper to ※ BibTeX, ※ LaTeX, ※ Text, ※ RIS/RefMan, ※ EndNote (xml)