Laboratory experiment for verification of cosmic-ray influence on cloud formation and global climate

为了验证宇宙线电离产生的大气离子促进气溶胶粒子的形成和增长并控制地球气候的假说，我们进行了初步的实验研究。本文介绍了一种将含有微量组分的合成空气引入反应室，并在紫外光和电离辐射照射后测量反应产物的系统。我们用β射线或重离子束辐照大气，测量了离子密度、气溶胶粒子密度和粒子尺寸分布。结果表明，离子密度与气溶胶粒子密度呈线性关系，高离子密度下的饱和趋势，粒子尺寸分布随时间的变化等。

In order to verify a hypothesis that atmospheric ions produced by ionization of cosmic-rays promote formation and growth of aerosol particles and control the earth's climate, we conducted a preliminary study on laboratory experiments. A system has been constructed for introduction of syntesis air with minor constituents to a reaction chamber and measurement of reaction products after irradiation of UV lights and ionizing radiation. We irradiated beta-rays or heavy ion beam and measured ion density, aerosol particle density and particle size distribution. As a result, we obtained data showing a linear relation between ion density and aersol particle density , saturation tendensy at high ion density, time variation of particle size distribution, etc. With these results, more detailed experiments will be ready.