实验室模拟真空紫外辐照设备的研制

Development of Equipment for Simulating Vacuum Ultraviolet Irradiation in Laboratory

为开展真空紫外辐射及真空紫外线与其它空间环境复合效应的地面模拟实验,研制了真空辐照模拟设备。选用氘灯作紫外光源并合理设计光路,简单适用。采用扩散泵和机械泵作高真空抽气系统组成模拟系统,以达到地外紫外线辐照条件。并利用该设备初步进行了有机硅温控涂层的辐照实验,结果表明真空紫外导致其光学性能下降,必须加以防护。

We developed the ground VUV simulation facility for the research of vacuum ultraviolet irradiation and the compound effect of vacuum ultraviolet radiation with other space environments. We chose the deuterium lamp as the ultraviolet lamp-house and designed the ray path rightly. To reach the qualification of outer space ultraviolet irradiation, we adopted the diffuse pump and mechanic pump as the high vacuumizing unit. According to the results of temperature control siloxane coating experiment, vacuum ultraviolet irradiation can weaken its optical property, so it must be protected.