Charge state distribution analysis of Al and Pb ions from the laser ion source at IMP

TL;DR

This study demonstrates the production and analysis of high charge state Al and Pb ions using a laser ion source with a Nd:YAG laser, highlighting the maximum charge states achieved and the ion energy distribution.

Contribution

It introduces a prototype laser ion source capable of producing high charge state ions and provides detailed charge state and energy distribution measurements for Al and Pb ions.

Findings

Maximum charge states of Al12+ and Pb7+ achieved.

High purity targets used for laser plasma generation.

Ion energy distribution characterized using EIA and EMT.

Abstract

A prototype laser ion source that could demonstrate the possibility of producing intense pulsed high charge state ion beams has been established with a commercial Nd:YAG laser (E max = 3 J, 1064 nm, 8-10 ns) to produce laser plasma for the research of Laser Ion Source (LIS). At the laser ion source test bench, high purity (99.998 %) aluminum and lead targets have been tested for laser plasma experiment. An Electrostatic Ion Analyzer (EIA) and Electron Multiply Tube (EMT) detector were used to analyze the charge state and energy distribution of the ions produced by the laser ion source. The maximum charge states of Al12+ and Pb7+ were achieved. The results will be presented and discussed in this paper.