氢氘原子光谱实验最优参数的确定

Determination of Optimum Parameters in Hydrogen Deuterium Atoms Spectrum Experiment

为了获得了清晰的氢氘原子光谱谱线,首先确定了对光谱谱线有影响的负高压及狭缝宽度2个实验参量。先选定氢原子的一条谱线,在一定的负高压下,通过改变狭缝宽度来获取不同组光谱谱线,经分析得到理想的狭缝宽度范围。在该范围内选取几条狭缝宽度,分别通过改变负高压来得到理想的最优参数组。实验发现,对于不同的波长最优参数组参数不同,因此又用同样的方法对其他的谱线进行了探究,找到不同谱线的公共最优参数区间,最终获得了清晰的氢原子光谱谱线。

To obtain the clear spectral lines of hydrogen deuterium atoms, the influence of the slit width and negative high-voltage on hydrogen atoms spectrum lines have been confirmed at first. A line of the hydrogen atom was selected. In a certain negative high-voltage, by changing the slit width to obtain different sets of spectral lines,the ideal slit width scope were obtained after analysis. Several slit widths were selected in this scope, and the ideal optimal parameter group was obtained through changing negative high-voltage. It was found that the optimal parameter group differed from different wavelengths. Therefore, other lines were probed by using the similar method. Finally the public optimum parameter blocks of different lines were found and the clear hydrogen atom spectrum spectral lines were obtained.