Emittance Characterization of Ion Beams Provided by Laser Plasma

Acta Polytechnica

Luciano Velardi¹  Vincenzo Nassisi¹  Domenico Delle Side¹  Massimo De Marco¹ 

关键词: LIS source;    ion beam;    emittance.;   

DOI  :  

来源: Czech Technical University in Prague, Faculty of M

【 摘 要 】

Laser ion sources offer the possibility to obtain ion beams useful for particle accelerators. Nanosecond pulsed lasers at intensities of the order of 10 8W/cm 2 , interacting with solid matter in a vacuum, produce plasma of high temperature and high density. To increase the ion energy, an external post-acceleration system can be employed by means of high voltage power supplies of some tens of kV. In this work, we characterize the ion beams provided by an LIS source and post-accelerated. We calculated the produced charge and the emittance. Applying 60 kV of accelerating voltage and laser irradiance of 0.1 GW/cm 2on the Cu target, we obtain 5.5 mA of output current and normalized beam emittance of 0.2 mm mrad. The brightness of the beams was 137 mA (mm mrad) −2 .

【 授权许可】

Unknown