Commissioning of a radiofrequency quadrupole cooler-buncher for collinear laser spectroscopy

• DOI: 10.48550/arxiv.2502.10740
• Publication Date: 2025-01-01
• Authors: Liu, Yin-Shen; Hu, Han-Rui; Yang, Xiao-Fei; Mei, Wen-Cong; Guo, Yang-Fan; Yan, Zhou; Chen, Shao-Jie; Bai, Shi-wei; Wang, Shu-Jing; Liu, Yong-Chao; Zhang, Peng; Chen, Dong-Yang; Ye, Yan-Lin; Li, Qi-Te; Yang, Jie; Malbrunot-Ettenau...; Lechner, Simon; Kanitz, Carina
• Keywords: Accelerator Physics (physics.acc-ph); Physics - Instrumentation and Detectors; FOS: Physical sciences; Physics - Accelerator Physics; Instrumentation and Detectors (physics.ins-det); Nuclear Experiment (nucl-ex); Nuclear Experiment

A RadioFrequency Quadrupole (RFQ) cooler-buncher system has been developed and implemented in a collinear laser spectroscopy setup. This system is dedicated to convert a continuous ion beam into short bunches, while enhancing beam quality and reducing energy spread. The functionality of the RFQ cooler-buncher has been verified through offline tests with stable rubidium and indium beam, delivered from a surface ion source and a laser ablation ion source, respectively. With a transmission efficiency exceeding 60%, bunched ion beams with a full width at half maximum of approximately 2μs in the time-of-flight spectrum have been successfully achieved. The implementation of RFQ cooler-buncher system has significantly improved the overall transmission efficiency of the collinear laser spectroscopy setup.