Higher Order Suppressor (HOS) for the PolLux Microspectroscope Beamline at the Swiss Light Source SLS

Journal Article · Wed Jun 23 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3463232· OSTI ID:21410268

Frommherz, U; Stefani, R; Ellenberger, U ^[1]; Raabe, J; Watts, B ^[2]

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1. Paul Scherrer Institut, Division of Mechanical Engineering Sciences, 5232 Villigen PSI (Switzerland)
2. Paul Scherrer Institut, Swiss Light Source, 5232 Villigen PSI (Switzerland)

The mechanical design and performance of a device to suppress higher orders of a spherical grating monochromator at a constant deviation angle is described. The higher order suppressor (HOS) is used for a scanning transmission x-ray microspectroscope beamline (PolLux) at a bending magnet of the Swiss Light Source (SLS). The instruments allow microspectroscopy in polymer science, of biological samples in the water window as well as the study of magnetic materials with circular or linear polarized light in a photon energy range of 200 eV to 1400 eV. The HOS uses three mirrors acting as a low pass filter for soft x-rays to improve the absorption spectroscopy of carbon, oxygen and nitrogen 1s core levels. The successful installation and operation of the HOS located after the monochromator is reported. First results obtained using samples from materials research and environmental sciences exemplify the improved spectroscopy capabilities of the instrument.

• OSTI ID: 21410268
• Journal Information: AIP Conference Proceedings, Vol. 1234, Issue 1; Conference: SRI 2009: 10. international conference on radiation instrumentation, Melbourne (Australia), 27 Sep - 2 Oct 2009; Other Information: DOI: 10.1063/1.3463232; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ABSORPTION SPECTROSCOPY
GRATINGS
MAGNETIC MATERIALS
MAGNETS
MIRRORS
MONOCHROMATORS
PHOTONS
PLATES
SOFT X RADIATION
SPHERICAL CONFIGURATION
SWISS LIGHT SOURCE
TRANSMISSION
BOSONS
CONFIGURATION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EQUIPMENT
IONIZING RADIATIONS
MASSLESS PARTICLES
MATERIALS
RADIATION SOURCES
RADIATIONS
SPECTROSCOPY
SYNCHROTRON RADIATION SOURCES
X RADIATION