论文部分内容阅读
文章提出一种利用等离子体鞘层加速模拟质子辐照的新方法。在真空室中通过射频-电感耦合的方法产生氢等离子体,将脉冲负高压施加在热控涂层样品上,利用氢等离子体鞘层加速技术实现样品的质子辐照,并研究了质子辐照对聚酰亚胺(Kapton)薄膜光学透过率、表面形貌以及表层化学结构的影响。结果表明:质子辐照后,样品的透过率下降,脉冲电压值越高和辐照时间越长,则透过率下降越多;AFM结果显示,样品表面“手指状”突起随着脉冲电压的增加呈现先增加后变化较小的趋势;XPS分析表明,辐照后样品的化学结构发生了变化,包括C—N键、C—O键以及C=O键的断裂,以及一些新键的形成。
In this paper, a new method of simulating proton irradiation by plasma sheath is proposed. Hydrogen plasma was generated by RF-inductive coupling in a vacuum chamber. A negative pulse of high pressure was applied to the thermal control coating. Hydrogen plasma was used to accelerate proton irradiation. Proton irradiation On the Kapton film optical transmittance, surface morphology and surface chemical structure. The results showed that the transmittance of the sample decreased after the proton irradiation, the higher the pulse voltage and the longer the irradiation time, the more the transmittance decreased. The AFM results showed that the “finger-like” XPS analysis showed that the chemical structure of irradiated samples changed, including the breakage of C-N bond, C-O bond and C = O bond, as well as some new Key formation.