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1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China. s.shan@impcas.ac.cn
The Review of Scientific Instruments
|March 3, 2012
Summary
A new pulsed laser ion source using a Nd:YAG laser was developed to generate high-charge-state heavy ion beams for accelerator upgrades. Preliminary results show successful plasma injection into a radio frequency quadrupole (RFQ).
Area of Science:
- Nuclear Physics
- Accelerator Physics
- Plasma Physics
Background:
- The Institute of Modern Physics (IMP) is developing a new low-energy beam injector to upgrade its accelerators.
- Pulsed high-charge-state heavy ion beams are crucial for advanced accelerator applications.
Purpose of the Study:
- To design, build, and test a laser ion source for generating pulsed high-charge-state heavy ion beams.
- To integrate the laser ion source with a radio frequency quadrupole (RFQ) via a direct plasma injection scheme.
Main Methods:
- Utilized a Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser delivering 3 J pulses at 1064 nm with 8-10 ns duration.
- Achieved a maximum power density of 8.4 × 10^12 W/cm^2 on a solid target.
- Employed a direct plasma injection scheme for transferring ions to the RFQ.
Main Results:
- Successfully generated pulsed high-charge-state heavy ion beams.
- Demonstrated the feasibility of direct plasma injection into the RFQ.
- Preliminary experimental data indicate the source's potential for accelerator enhancement.
Conclusions:
- The developed laser ion source is a viable component for upgrading IMP accelerators.
- The direct plasma injection scheme is effective for delivering ions to the RFQ.
- Further experimental results will be presented to validate the system's performance.
