MICROXAS IMAGING SYSTEM FOR BL 6-2

适用于 BL 6-2 的 MICROXAS 成像系统

• 批准号: 7598184
• 负责人: KATHARINA LUENING
• 金额: $ 2.1万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-03-01 至 2008-02-29
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7598184
• 关键词: Area; Computer Retrieval of Information on Scientific Projects Database; Computer software; Decompression Sickness; Development; Feedback; Funding; Grant; Image; Institution; Intercept; Location; Optics; Range; Research; Research Personnel; Resources; Sampling; Source; Spottings; Surface; System; United States National Institutes of Health; Work; absorption; desire; planetary Atmosphere; size; virtual

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. A commercial Kirkpatrick-Baez (KB) mirror system from Xradia Inc. was further developed on BL6-2 in a virtual source configuration. Sub-micrometer focusing for XAS imaging is obtained using two Rh coated adjustable KB mirrors in a crossed geometry for vertical and horizontal focusing, each with a self-contained bending mechanism to set the desired surface figure. The optics is enclosed in a He atmosphere, reducing absorption and scatter. A high precision slit aperture mounted downstream of the first vertically focusing KB mirror enables setting the intercepted beam size of the optics, and allows trading focused flux for spot size by probing different areas and locations of the mirror surface. Beam sizes range from 2 x 2 to 15 x 15 (horz x vert micrometer^2). Developments this year focused on software and experimentation with collaborative SMB users to provide feedback and direct the developments. Initial work was also done towards approaches of sample cooling.

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 来自Xradia Inc.在BL 6 -2上进一步开发了虚拟源配置。 XAS成像的亚微米聚焦使用两个Rh涂覆的可调节KB反射镜以交叉几何形状获得，用于垂直和水平聚焦，每个反射镜具有独立的弯曲机构以设置所需的表面图形。 光学器件被封闭在He气氛中，减少吸收和散射。 安装在第一垂直聚焦KB反射镜下游的高精度狭缝孔径使得能够设置光学器件的拦截光束尺寸，并且允许通过探测反射镜表面的不同区域和位置来将聚焦通量与光斑尺寸进行交换。 光束尺寸范围从2 x 2到15 x 15（horz x vert微米^2）。 今年的开发重点是软件和实验，与合作的中小企业用户提供反馈和指导开发。 对样品冷却的方法也做了初步的工作。