【摘要】 报道了新建造的用于团簇研究的反射式飞行时间质谱仪 ,包括反射式飞行时间质谱仪的结构、原理、真空系统、控制系统等 .初步性能测试表明 :激光溅射 /分子束载带型团簇离子源能够产生丰富的一元、二元团簇离子 ;质谱仪对离子的质量分辨接近 2 0 0 0 ,并且质量门也有较高的质量选择性 .系统用于团簇研究 ,得到了一些初步实验结果 .更多还原

【Abstract】 One home made laser reflectron time of flight mass spectrometer was reported. The main features including its mechanics, principle, vacuum system, detector and operating system were introduced. The test experiments showed that the LA/MB(Laser Ablation and Molecular Beam) sourse could produce abundant cluster ions, the mass resolution of the R TOF was nearly 2000 and the mass gate could work properly. It has been used to study clusters, some primary results were also listed.更多还原