Focusing of Aerosols into a Particle Beam at Pressures from 10 to 150 Torr
Focusing of Aerosols into a Particle Beam at Pressures from 10 to 150 Torr
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在 10 至 150 托的压力下将气溶胶聚焦成粒子束
DOI：
10.1080/027868299304093
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发表时间：
1999
影响因子：
5.2
通讯作者：
K. Mauersberger
中科院分区：
文献类型：
--
作者：
J. Schreiner;U. Schild;C. Voigt;K. Mauersberger
气动聚焦透镜的发展使气溶胶的研究，包括化学分析有了很大的进展。给出了2个这样的透镜的测试结果; 1个在15和80托之间的压力下操作，另一个在30和175托之间的较高压力下操作。透镜由7个由间隔物隔开的单个孔组成，并包含在约10 cm长的管中。孔直径范围从1.40到0.25 mm，而出口孔（喷嘴）较小。透镜内的层流气流产生窄粒子束，该窄粒子束被引导到真空室中，用于分析束宽度和位置、气溶胶传输效率、线性度和其它参数。用球形单分散油颗粒（直径0.34 -4 μ m）以及模拟具有较低密度的较大颗粒的非球形固体NaCl颗粒（0.19 - 0.85 μ m）测试透镜。两个透镜在喷嘴下游约90 mm处产生直径小于4 mm的窄气溶胶束。虽然非…
The study of aerosols including chemical analysis has been substan tially advanced after the development of aerodynamic focusing lenses. Test results of 2 such lenses are presented; 1 operating at pressures between 15 and 80 Torr and the other at higher pressures between 30 and 175 Torr. The lenses consist of 7 single orifices separated by spacers and contained in a tube of about 10 cm in length. Orifice diameters range from 1.40 to .25 mm, while the exit holes (nozzles) are smaller. Laminar gas flow within a lens produces a narrow particle beam which is directed into a vacuum chamber for analysis of beam width and position, aerosol transport efficiency, linearity, and other parameters. The lenses were tested both with spherical monodisperse oil particles (.34-4 mu m diameter) as well as nonspherical solid NaCl particles (.19-.85 mu m) simulating larger particles with lower density. Both lenses produce narrow aerosol beams with diameters smaller than 4 mm about 90 mm downstream of the nozzle. Although non...