Note: A pulsed laser ion source for linear induction accelerators

作者：Zhang, H.^*; Zhang, K.; Shen, Y.; Jiang, X.; Dong, P.; Liu, Y.; Wang, Y.; Chen, D.; Pan, H.; Wang, W.; Jiang, W.; Long, J.; Xia, L.; Shi, J.; Zhang, L.; Deng, J.

来源：Review of Scientific Instruments, 2015, 86(1): 016104.

DOI：10.1063/1.4905363

• EMITTANCE MEASUREMENT

We have developed a high-current laser ion source for induction accelerators. A copper target was irradiated by a frequency-quadrupled Nd: YAG laser (266 nm) with relatively low intensities of 10(8) W/cm(2). The laser-produced plasma supplied a large number of Cu+ ions (similar to 10(12) ions/pulse) during several microseconds. Emission spectra of the plasma were observed and the calculated electron temperature was about 1 eV. An induction voltage adder extracted high-current ion beams over 0.5 A/cm(2) from a plasma-prefilled gap. The normalized beam emittance measured by a pepper-pot method was smaller than 1 pi mm mrad.

• 出版日期2015-1
• 单位中国工程物理研究院流体物理研究所; 北京大学; 中国工程物理研究院