RIKEN Nishina Center for Accelerator-Based Science Ion Source Team

Team Leader: Osamu Kamigaito (D.Sc.)

Japanese Page

Research Summary

Ion sources are critical devices that determine the performance of accelerator facilities. The Ion Source Team has produced several world-class ECR ion sources over a long period of research and development. We currently operate three ECR ion sources, including two superconducting ECR ion sources, to produce intense heavy-ion beams that are accelerated in the RI Beam Factory. We are also conducting research and development to further increase the intensity and stability of the beams.

Main Research Fields

Engineering

Related Research Fields

Mathematical & Physical Sciences

Keywords

ion source
heavy ion
High-intensity beam
electron cyclotron resonance (ECR)

Selected Publications

1. Y. Higurashi, G. Q. Saquilayan, J. Ohnishi, H. Haba and T. Nagatomo:
"Producing intense uranium ion beam for RIKEN RI Beam Factory"
J. Phys.: Conf. Ser. 2743, 012051 (2023).
2. Y. Higurashi, G. Q. Saquilayan, J. Ohnishi, and T. Nagatomo:
"Intense vanadium ion beam production for super-heavy element research experiments"
J. Phys.: Conf. Ser. 2743, 012052 (2023).
3. Y. Morita, T. Nagatomo, and Y. Nakashima:
"Development of an Image Analysis Method for Pepperpot Emittance Monitors"
J. Phys.: Conf. Ser. 2743, 012071 (2023).
4. G. Q. Saquilayan, T. Nagatomo, Y. Higurashi, J. Ohnishi, T. Nakagawa, and O. Kamigaito:
"Beam Emittance Growth of Highly Charged Ion Beams from the RIKEN 28-GHz SC-ECRIS"
J. Phys.: Conf. Ser. 2743, 012081 (2023).
5. T. Nagatomo, K. Kamakura, Y. Morita, G. Q. Saquilayan, Y. Higurashi, and J. Ohnishi:
"Space-Charge E ects on Transverse Emittance in the Extraction Region of the RIKEN 28-GHz ECRIS"
J. Phys.: Conf. Ser. 2743, 012082 (2023).
6. Y. Morita, T. Washio, and Y. Nakashima:
"Accelerator tuning method using autoencoder and Bayesian optimization"
Nucl. Instrum. Methods A 1057, 168730 (2023).
7. Y. Higurashi, J. Ohnishi, K. Ozeki, M. Kidera, and T. Nakagawa:
"Recent development of RIKEN 28 GHz superconducting electron cyclotron resonance ion source"
Rev. Sci. Instrum. 85, 02A953 (2014).
8. K. Ozeki, Y. Higurashi, J. Ohnishi, and T. Nakagawa:
"Effect of Biased Disc on Brightness of Highly Charged Uranium Ions from RIKEN 28 GHz Superconducting Electron Cyclotron Resonance Ion Source"
Jpn. J. Appl. Phys. 52 068001 (2013).
9. Y. Higurashi, J. Ohnishi, T. Nakagawa, H. Haba, M. Tamura, T. Aihara, M. Fujimaki, M. Komiyama, A. Uchiyama, and O. Kamigaito:
"Production of a highly charged uranium ion beam with RIKEN superconducting electron cyclotron resonance ion source"
Rev. Sci. Instrum. 83, 02A333 (2012).
10. T. Nakagawa, Y. Higurashi, J. Ohnishi, T. Aihara, M. Tamura, A. Uchiyama, H. Okuno, K. Kusaka, M. Kidera, E. Ikezawa, M. Fujimaki, Y. Sato, Y. Watanabe, M. Komiyama, M. Kase, A. Goto, O. Kamigaito, and Y. Yano:
"First results from the new RIKEN superconducting electron cyclotron resonance ion source"
Rev. Sci. Instrum. 81, 02A320 (2010).

Lab Members

Principal investigator

Osamu Kamigaito: Team Leader

Core members

Takashi Nagatomo: Senior Technical Scientist
Yasuyuki Morita: Research Scientist
Glynnis Mae Quinones Saquilayan: Postdoctoral Researcher

Contact Information

2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Email: kamigait [at] riken.jp