Production of a highly charged uranium ion beam with RIKEN superconducting electron cyclotron resonance ion source

Y Higurashi; J Ohnishi; T Nakagawa; H Haba; M Tamura; T Aihara; M Fujimaki; M Komiyama; A Uchiyama; O Kamigaito

doi:10.1063/1.3671743

Production of a highly charged uranium ion beam with RIKEN superconducting electron cyclotron resonance ion source

Rev Sci Instrum. 2012 Feb;83(2):02A333. doi: 10.1063/1.3671743.

Authors

Y Higurashi¹, J Ohnishi, T Nakagawa, H Haba, M Tamura, T Aihara, M Fujimaki, M Komiyama, A Uchiyama, O Kamigaito

Affiliation

¹ RIKEN Nishina Center, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan. [email protected]

PMID: 22380180
DOI: 10.1063/1.3671743

Abstract

A highly charged uranium (U) ion beam is produced from the RIKEN superconducting electron cyclotron resonance ion source using 18 and 28 GHz microwaves. The sputtering method is used to produce this U ion beam. The beam intensity is strongly dependent on the rod position and sputtering voltage. We observe that the emittance of U(35+) for 28 GHz microwaves is almost the same as that for 18 GHz microwaves. It seems that the beam intensity of U ions produced using 28 GHz microwaves is higher than that produced using 18 GHz microwaves at the same Radio Frequency (RF) power.