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实验测量了诊断中性束(DNB)中H0的4种主要能量成分(全能量,半能量,1/3能量,1/18能量),运用光谱法来分析中性束的束成分所占百分数。根据多普勒效应,中性束中的氢粒子发出的Hα波长偏离本底的Hα波长,波长偏移量与氢粒子的能量相关,从而在光谱仪上得到多峰Hα谱线。通过编写程序并以此对实验的原始谱线进行了初步和精确拟合,最终准确有效地分析出中性束的束成分和束能量。实验测得DNB束流的中性氢粒子的全能量、半能量、1/3能量和1/18能量4种成分分别占15%,42%,35%,8%。
Four main energy components (total energy, half energy, 1/3 energy, 1/18 energy) of H0 in the diagnosed neutral beam (DNB) were measured experimentally, and the percentage of the beam components of the neutral beam . According to the Doppler effect, the Hα wavelength emitted by the hydrogen particles in the neutral beam deviates from the background Hα wavelength, and the wavelength shift is related to the energy of the hydrogen particles, thereby obtaining a multi-peak Hα spectrum on the spectrometer. By programming and using this method, the original spectral lines of the experiment were initially and precisely fitted, and the beam components and beam energies of the neutral beam were analyzed exactly and effectively. The experimental results show that all four kinds of energy, neutral energy, 1/3 energy and 1/18 energy of 15%, 42%, 35% and 8% of the neutral hydrogen particles of DNB beam are measured respectively.