Feasibility study of a compact heavy ion source for investigation of laboratory magnetospheric plasma

0523771 - ÚJF 2021 RIV US eng J - Journal Article
Nakamura, K. - Nishiura, M. - Okamura, M. - Kanesue, T. - Ikeda, S. - Cannavó, Antonino
Feasibility study of a compact heavy ion source for investigation of laboratory magnetospheric plasma.
Review of Scientific Instruments. Roč. 91, č. 3 (2020), č. článku 033503. ISSN 0034-6748. E-ISSN 1089-7623
Institutional support: RVO:61389005
Keywords : laser ion source * heavy ion beams
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.523, year: 2020
Method of publishing: Limited access
https://doi.org/10.1063/1.5128642

We are developing a laser ion source to provide a high brightness multi-charged heavy ion beam as a part of the heavy ion beam probe system, which will be used to diagnose plasma potential in the Ring Trap 1 device at the University of Tokyo. As a probe beam, Nb2+ was selected, and a detailed laser irradiation condition was explored. It was found that the laser power density of 1.2 x 10(9) W/cm(2) gives the maximum particle number of Nb2+ per laser energy from a niobium foil target. Essential ablation plasma parameters to design the laser ion source were also obtained. The expected beam current was more than 12 mA/cm(2), with a pulse width of 3.1 mu s at 200 mm away from the target.
Permanent Link: http://hdl.handle.net/11104/0308068