水中脉冲放电活性粒子的研究

通过发射光谱和化学方法检测蒸馏水中脉冲放电产生的活性粒子，研究了氧气流量造成的放电形式变化(流注和火花放电)，活性粒子(包括羟基、激发态氢原子、氧原子和过氧化氢)变化。实验表明放电形式对各种活性粒子的产率有明显的影响，而气体流量的大小直接决定放电形式的转变，其中氢原子发射光谱强度的变化可以直接表示这种转变，这种转变也决定了OH和H发射光谱强度的差异。

RESEARCH ON THE ACTIVE SPECIES PRODUCED BY A PULSE DISCHARGE IN WATER

Various electrical discharge types and active species (OH, H, O, H2O2) in distilled water were measured by optical emission spectra method and chemical method in pulsed discharge for different oxygen gas flow rate. It was found that the active species formation was very dependent on the discharge types: streamer and spark discharge. The transition form streamer discharge to spark discharge was directly dependent on the magnitude of oxygen gas flow rate and detected by the light intensity of H, and it resulted in the difference of optical emission intensity of OH and H.