The study towards high intensity high charge state laser ion sources

Area of Science:

• Physics
• Accelerator Science
• Plasma Physics

Background:

• Laser ion sources are being developed for the High Intensity heavy-ion Accelerator Facility.
• Investigating ion generation from various elements is crucial for accelerator applications.

Purpose of the Study:

• To evaluate the performance of a laser ion source for generating highly charged ions.
• To assess the charge state distributions and stability of ion pulses from different elemental targets.

Main Methods:

• Irradiating solid targets (C, Al, Ti, Ni, Ag, Ta, Pb) with a pulsed Nd:YAG laser.
• Measuring ion charge state distributions using an electrostatic ion analyzer spectrometer.
• Monitoring ion pulse stability with a Faraday cup.

Main Results:

• Highly charged ions were successfully generated from low-to-medium mass elements.
• Lower charge state distributions were observed for high mass elements.
• Shot-to-shot stability within ±2.5% for peak current/total charge and ±6% for pulse duration was achieved.

Conclusions:

• The laser ion source shows promise for generating highly charged ions, particularly for low-to-medium mass elements.
• Further optimization is possible to improve the stability and performance of the laser ion source.
• This technology is a viable candidate for future heavy-ion accelerator projects.