Author: Dill, F.U.
Paper Title Page
WEOBM06
 Extension of the IXS High Resolution Monochromator for the RIXS experiment at the Petra III Beamline P01  
 
  • F.U. Dill
    DESY, Hamburg, Germany
  
  The IXS High Res­o­lu­tion Mono­chro­ma­tor at P01 is used for the in­ter­me­di­ate X-Ray regime from 2.5keV to 3.5keV. The core com­po­nent is a disk that car­ries the crys­tals. At the cir­cum­fence an en­coder ring is mounted. A ra­dial and axial runout of less than 1µm dur­ing the ro­ta­tion is guar­an­teed by a high pre­ci­sion spin­dle bear­ing. The ro­ta­tion is done by a Piezo­LEG with a 110mm long ce­ramic bar that is cou­pled to the disk via a wire and pro­vides an an­gu­lar res­o­lu­tion bet­ter than 100n­rad. The setup is in op­er­a­tion since mid 2017 with four crys­tals. In spring 2021 two ad­di­tonal mov­ing units where in­stalled to po­si­tion eight crys­tals in total. An en­large­ment of the an­gu­lar range for the in-line setup is planned for spring 2024.  
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