【摘要】 <正> 合肥同步辐射装置上的软X射线显微术光束线专用于生物样品研究。电子储存环BL₁₂窗口引出同步光至超高真空室,经分束镜,光阑、薄窗、波带片、针孔和微波带片等产生生物样品试验所要不同通量和不同波长的单色光。其光学系统见图1。该光束线装有一台软X射线波带片线性扫描单色仪。三块不同参数波带片在真空室里沿轴向移动220mm,使同步光单色,按不同波长汇聚于光轴,针孔后可获得通量10⁹光子/秒、波长20（?）到54（?）的单色光。经微波带片进一步聚焦,产生直径0.2μm的光斑照射生物样品。更多还原

【Abstract】 The soft X-ray microscopy beam line is used to study the biological specimens. It consists of a typical front end, a splitting mirror chamber, a six-meter section and a linear zone plate monochromator. Its function is to turn the bending magnet radiation from the storage ring port into a desired monochromatic light by some optical elements, such as aperture, foil window, zone plate, pinhole and micro zone plate. Being moved to a distance of 220 mm along the optical axis, the three pieces of zone plates, which act as the dispersing and focusing elements of the monochromator, cover the wavelength range between 20 and 54 (?)with the flax of 10~9 photons per second. Then the monochromatic light is focused to a spot of 0.2 micron in diameter at the sample by a micro zone plate.更多还原