论文部分内容阅读
用放电方法在低温硫饱和蒸汽中产生了S_2。实验中,将含硫的放电管置于200℃的加热炉中,以提供所需的硫饱和蒸汽。用直流电源和脉冲电源均实现了稳定、自持的辉光放电,记录的荧光谱图是典型的二聚物带状结构,几乎覆盖了记录所及的整个谱区(400～600nm)。分析表明谱图是S_2的(B-X)跃迁谱,说明放电电子可将蒸汽中的S_3……S_8高分子解离成双原子分子,且对S_2的B_3∑_u~-电子态进行有效的泵浦。各谱带强度随放电电压增
S_2 is generated in the low temperature sulfur saturated steam by the discharge method. In the experiment, a sulfur-containing discharge tube was placed in a furnace at 200 ° C to provide the desired sulfur-saturated vapor. The stable and self-sustaining glow discharge was achieved by both DC power and pulsed power. The recorded fluorescence spectrum is a typical dimeric banded structure that covers almost the entire spectrum (400-600 nm) recorded. The analysis shows that the spectrum is the (BX) transition of S 2, indicating that the discharged electrons can dissociate the S 3 ... S 8 polymer in the vapor into diatomic molecules and effectively pump the B 3 Σ_u ~ electronic state of S 2 . The intensity of each band increases with the discharge voltage