摘要
设计并制作了空心阴极、钮扣阴极、针阴极和条形阴极 ,利用 CCD照相 ,在 5 cm× 5 cm口径范围内 ,分别对四种阴极放电的空间均匀性进行了研究。实验表明 ,在预电离电压 80 0 V,主放电电压3k V和气体气压约 30 Pa的条件下 ,利用空心阴极放电 ,能够获得空间较为均匀的放电等离子体。
Large area glow discharge plasma that is transparent and highly conductive can be used as electrodes in Pockels cell to extend the switch aperture. To investigate this technology, a glow discharging chamber with a clear aperture of 5 cm × 5 cm was constructed, and hollow cathode, button cathode, pin cathode, bar cathode and bar anode were designed and produced. Using CCD imaging system, the discharging uniformity of different cathodes was tested with bar anode and under the different pressure pre-ionization voltage and main discharging voltage. A uniform plasma can be obtained with a hollow cathode when the pre-ionization voltage is about 700 V, the pressure is about 30 Pa, and the main discharging voltage is about 4 kV, which can be used for the plasma electrode of Pockels cell.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2002年第2期189-192,共4页
High Power Laser and Particle Beams
基金
国家 8 6 3惯性约束聚变领域资助课题 ( 86 3-4 16 -2 -1.4)
