靶丸内混合气体的质谱法测量技术
Mass spectrum analysis of mixture gas in fusion targets
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摘要: 叙述了四极质谱(QMS)的结构和气体分析质谱(GAM)的定量分析工作原理。四极质谱具有快速扫描响应，较高的响应灵敏度的特点，在经过标准气体校准后，加上独特的气体进样系统，可用于惯性约束聚变(ICF)靶丸内混合气体组分含量及总量的定量分析。同时，在经过坐标尺度放大等手段，可以对混合气体中质量数极为接近的氘(4.028 2)和氦(4.002 6)在高分辨模式下进行基线分离。用四极质谱对各种靶丸结构、不同混合气体种类的气体进行了定量组分分析，为ICF实验用靶提供了同批次实验数据。
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关键词:
- 气体分析质谱(GAM) /
- 靶丸 /
- 混合气体
Abstract: The structure of quadrupole mass spectrometers (QMS) and the quantitative analysis principle of gas analysis mass spectrometers (GAM) are described. The GAM system is very sensitive and can be used to quantitatively analyze the gas mixture in fusion targets. It can work in a normal resolution mode or in a high resolution mode. In the high resolution mode, it can selectively detect deuterium (with a mass number of 4.028 2) and helium (with a mass number of 4.002 6). This system can offer reference data of filled microsphere targets for inertial confinement fusion (ICF) experiments.-
Key words:
- gas analysis mass spectrometers (gam) /
- microsphere targets /
- gas mixture
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