Takman P A C, Stollberg H, Johansson G A, Holmberg A, Lindblom M, Hertz H M
Biomedical and X-Ray Physics, Royal Institute of Technology/Albanova, SE-106 91 Stockholm, Sweden.
J Microsc. 2007 May;226(Pt 2):175-81. doi: 10.1111/j.1365-2818.2007.01765.x.
We demonstrate compact full-field soft X-ray transmission microscopy with sub 60-nm resolution operating at lambda= 2.48 nm. The microscope is based on a 100-Hz regenerative liquid-nitrogen-jet laser-plasma source in combination with a condenser zone plate and a micro-zone plate objective for high-resolution imaging onto a 2048 x 2048 pixel CCD detector. The sample holder is mounted in a helium atmosphere and allows imaging of both dry and wet specimens. The microscope design enables fast sample switching and the sample can be pre-aligned using a visible-light microscope. High-quality images can be acquired with exposure times of less than 5 min. We demonstrate the performance of the microscope using both dry and wet samples.
我们展示了一种紧凑型全场软X射线透射显微镜，其在λ = 2.48 nm下运行，分辨率低于60 nm。该显微镜基于一个100 Hz的再生液氮喷射激光等离子体源，结合一个聚光区板和一个微区板物镜，用于在2048×2048像素的CCD探测器上进行高分辨率成像。样品架安装在氦气气氛中，可对干燥和湿润的标本进行成像。显微镜的设计允许快速更换样品，并且可以使用可见光显微镜对样品进行预对准。曝光时间少于5分钟即可获取高质量图像。我们使用干燥和湿润样品展示了该显微镜的性能。
