四极质谱计的氦氘分辨性能实验
Nuclear Fusion and Plasma Physics（2012）
Abstract
利用一套四极质谱气体分析与测试系统,开展MicroVision Plus四极质谱计的氦(He)、氘(D2)分辨性能实验.分别向分析室送入He和D2,记录质谱图,得到质量刻度和分辨率等信息.He+峰位为(4.0022±0.0006)amu;D2+峰位为(4.0246±0.0006)amu.在10-6-10-4pa的分压范围,观察到He和D2的分辨率随其分压强的增大而减小.在10-7Pa.m3.s-1的He漏孔条件下,调节D2送气量,He+/D2+分压峰值比在10-1量级可以分辨出He.
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Key words
deuterium resolution performance,helium
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