title: Multiple species beam production on laser ion source for electron beam ion source in Brookhaven National Laboratory.
abstract: Extracted ion beams from the test laser ion source (LIS) were transported through a test beam transport line which is almost identical to the actual primary beam transport in the current electron beam ion source apparatus. The tested species were C, Al, Si, Cr, Fe, Cu, Ag, Ta, and Au. The all measured beam currents fulfilled the requirements. However, in the case of light mass ions, the recorded emittance shapes have larger aberrations and the RMS values are higher than 0.06 π mm mrad, which is the design goal. Since we have margin to enhance the beam current, if we then allow some beam losses at the injection point, the number of the single charged ions within the acceptance can be supplied. For heaver ions like Ag, Ta, and Au, the LIS showed very good performance.
authors.affiliation: Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Meguro, Tokyo, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Sekine
authors.affiliation: Riken, Wako, Saitama, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Ikeda
authors.affiliation: Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Meguro, Tokyo, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Hayashizaki
authors.affiliation: Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
authors.forename: T
authors.initials: T
authors.lastname: Kanesue
authors.affiliation: Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
authors.forename: M
authors.initials: M
authors.lastname: Okamura