Author/Authors :
Souda، نويسنده , , Hikaru and Fujimoto، نويسنده , , Shinji and Tongu، نويسنده , , Hiromu and Shirai، نويسنده , , Toshiyuki and Tanabe، نويسنده , , Mikio and Ishikawa، نويسنده , , Takehiro and Nakao، نويسنده , , Masao and Ikegami، نويسنده , , Masahiro and Wakita، نويسنده , , Akihisa and Iwata، نويسنده , , Soma and Fujimoto، نويسنده , , Tetsuya and Takeuchi، نويسنده , , Takeshi and Noda، نويسنده , , Koji and Noda، نويسنده , , Akira، نويسنده ,
Abstract :
A closed orbit is corrected for single-turn injection to perform laser cooling experiments of 40 keV 24 Mg + beam at the small laser-equipped storage ring (S-LSR). Closed orbit distortion (COD) corrections have been carried out using a downhill simplex method, and CODs of less than ± 0.5 mm have been achieved throughout the whole circumference. The injection orbit and the CODs are optimized to pass through the two aperture holes in the alignment targets located in the laser cooling section with an algorithm to maximize beam lifetime. The CODs at the aperture holes are reduced to be less than ± 0.2 mm , assuring an overlap between the laser and the 24 Mg + ion beam.
Keywords :
Cod correction , Single-turn injection , laser cooling , Beam handling , Ion Beam
