CiPo - Beamline
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Beamline Description
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The CiPo Beamline has been designed and constructed, in order to make available to the users the widest photon energy range (5 - 1000 eV), with high flux and control of the light polarization (circular and linear). The Beamline consists of two different monochromators (NIM and SGM, i.e. G’ and G respectively), which share the entrance and exit slits (S1 and S2) as well as the pre- and post-focusing optics (M0, M1 and M3) as sketched in the figure. The normal incidence monochromator (NIM, i.e. G’), covers the photon energy range of 5 - 35 eV using two different holographic gratings (Gold and Aluminum). The grazing incidence monochromator (SGM, i.e. G), covers the energy range 30 - 1000 eV, working in Padmore-type configuration and is equipped with a variable angle plane mirror (M2) and four spherical gratings (G1 to G4). Switching between the two monochromators is obtained by simply inserting or removing one mirror (M’2). The beamline accepts a maximum emission angle of (2 hor. x 1 vert.)mrad2 of the radiation that is focused in the vertical plane by means of plane (M0) and toroidal (M1) mirrors onto the entrance slit (S1). Both mirrors of the focusing optics have 2.5° grazing incidence and return the radiation parallel to the orbit plane. After the exit slit (S2) the radiation is focussed at the sample position with a toroidal mirror (M3). |
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Last Updated on Wednesday, 13 February 2013 16:18
