A. Hirai et al., Transmission x-ray microscopy with 50 nm resolution installed at Ritsumeikan Synchrotron Radiation Center, JPN J A P 1, 38(1A), 1999, pp. 274-278
A transmission X-ray microscope having two zone plates has been developed a
t BL-12, Ritsumeikan Synchrotron Radiation Center (Rits SR Center). By inco
rporating a new: type of condenser zone plate (diameter 9 mm, zone number41
,890; outermost zone width 53.7 nm) in the microscope, 50 nm resolution has
been obtained from both knife edge test and star test pattern at a wavelen
gth of 3.2 nm, and for diatoms, the 0.1 mu m inner structures have been cle
arly resolved.