Design of Surface Chemistry End-Station of BL23SU in SPring-8
Design of Surface Chemistry End-Station of BL23SU in SPring-8
复制标题
SPring-8 中 BL23SU 表面化学终端站的设计
DOI：
10.7567/jjaps.38s1.642
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发表时间：
1999
影响因子：
1.5
通讯作者：
A. Yoshigoe
中科院分区：
文献类型：
--
作者：
Y. Teraoka;A. Yoshigoe
设计了一套用于表面反应研究的实验装置，作为SPring-8软X射线束线BL 23 SU的终端站。利用变偏振波荡器提供强通量密度的软X射线，并采用掠入射变线距平面光栅实现单色化。超声分子束技术应用于获得入射分子的反射能量控制。由于在分子束操作期间保持表面反应室中的低压，通过同时应用光电子能谱来实现对能量诱导的表面反应的分析。该终端站将促进关于入射分子动能引起的新的原子层反应以及由于内壳层选择性光激发引起的新的单层光致碎裂的研究活动。
An experimental apparatus for surface reaction research has been designed as an end-station of a soft x-ray beamline, BL23SU, in the SPring-8. The soft x-ray with intense flux density is provided by a variable-polarizing undulator and is monochromized by using a varied line-spacing plane grating with grazing-incidence. A supersonic molecular beam technique is applied to obtain translational-energy control of incident molecules. Owing to keeping low pressure in the surface reaction chamber during molecular beam operation, the analysis of translational-energy-induced surface reactions is achieved by simultaneous application of the photoelectron spectroscopy. The end-station will promote research activities on new atomic layer reactions induced by the kinetic energy of incident molecules as well as new photofragmentation of monolayer due to the inner-shell selective photoexcitation.