The design of a new beamline was introduced

which will be used for Circular - Dichroism and Photoacoustic spectroscopy at National Synchrotron Radiation Laboratory. An improved normal incident monochromator was adopted in the design. The beamline includes a prefocusing cylindrical mirror and a cylindrical guting

but no entrance slit. The mirror will accept a very large proportion of the dipole radiation (8 mrad of vertical beam

.and 40 mrad of horizontally)

and focus the source sagittally on exit slit. The cylindrical grating will focus meridionally the source on the sample position

besides dispersion. The characteristics of such design are high flux (1012-1013 photons/s)

moderate resolution (0. 3-5nm)

reserving the linear polarization. A valve with LiF (or GaF2 ) window will be used to separate the beamline and experimental station. The beamline will be in ultra - high vacuum

but the experimental station will be N2 (or He) purged.