Author: Dill, F.U.
Paper Title Page
THPH10
 High Resolution Monochromator for the IXS Experiment at Petra III Beamline P01  
 
  • F.U. Dill
    DESY, Hamburg, Germany
  
  Since April 2017, beamline P01 at Petra III DESY is providing monochromatic X-Rays at energies down to 2.5keV. An in-house developed High Resolution Monochromator (HRM) for High Vacuum (5x10-7mbar) was assembled and installed in early summer 2017. As a core component a high precision goniometer was designed. A piezo actuator provides the required angular range of 40°. The angular resolution is specified with 0.5microrad and is controlled by an encoder. Three goniometers can be moved independently along the three linear directions. The linear movements are assembled by low cost linear guide components and driven by toothed wheels and toothed bars or by spindles directly attached to the motor shaft. First beamtimes in 2017 with channel cut Si (111) crystals showed promising results - HRM providing x-rays with a bandwidth of 100meV (at 2.840keV). The resolution of the goniometers is better than 0,1microrad with a stability of ±50nanorad. In spring 2018 a four-bounce setup with additional standard piezo manipulators was designed to reach a bandwidth between of 50meV. After installation and first measurements in May 2018 a total energy resolution of 100meV was achieved.  
poster icon Poster THPH10 [2.916 MB]  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
FROAMA06
 High Resolution Monochromator for IXS Experiments at Petra III Beamline P01  
 
  • F.U. Dill
    DESY, Hamburg, Germany
  
  Since April 2017, beamline P01 at Petra III DESY is providing monochromatic X-Rays at energies down to 2.5keV. An in-house developed High Resolution Monochromator (HRM) for High Vacuum (5x10-7mbar) was assembled and installed in early summer 2017. As a core component a high precision goniometer was designed. A piezo actuator provides the required angular range of 40°. The angular resolution is specified with 0.5microrad and is controlled by an encoder. Three goniometers can be moved independently along the three linear directions. The linear movements are assembled by low cost linear guide components and driven by toothed wheels and toothed bars or by spindles directly attached to the motor shaft. First beamtimes in 2017 with channel cut Si (111) crystals showed promising results - HRM providing x-rays with a bandwidth of 100meV (at 2.840keV). The resolution of the goniometers is better than 0,1microrad with a stability of ±50nanorad. In spring 2018 a four-bounce setup with additional standard piezo manipulators was designed to reach a bandwidth between of 50meV. After installation and first measurements in May 2018 a total energy resolution of 100meV was achieved.  
slides icon Slides FROAMA06 [4.933 MB]  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)