飞行时间谱仪原有样品室采用薄壁充氩气形式,虽比空气情况本底降低了3倍,但还不够理想,为此设计制作了新的抽真空样品室。广角谱仪样品室要求出射窗超过90°范围,为了减少散射影响还要求样品室足够大,为此新设计的真空样品室直径为570mm,高度为120mm,侧壁为1.2mm厚铝片。 The original sample chamber of the time-of-flight spectrometer was thin-walled argon-filled, which was 3 times lower than the background of air conditions, but was not ideal. Therefore, a new vacuum chamber was designed and manufactured. Wide-angle spectrometer sample room requires exit window over 90 ° range, in order to reduce the scattering effect also requires the sample chamber is large enough for this new design of the vacuum chamber has a diameter of 570mm, a height of 120mm, 1.2mm thick aluminum side wall.