Synchronized monochromator and insertion device energy scans at SLS
- Paul Scherrer Institut, Villigen, Swiss Light Source, 5235 Villigen PSI (Switzerland)
Synchronous monochromator and insertion device energy scans were implemented at the Surfaces/Interfaces:Microscopy (SIM) beamline in order to provide the users fast X-ray magnetic dichroism studies (XMCD). A simple software control scheme is proposed based on a fast monochromator run-time energy readback which quickly updates the insertion device requested energy during an on-the-fly X-ray absorption scan (XAS). In this scheme the Plain Grating Monochromator (PGM) motion control, being much slower compared with the insertion device (APPLE-II type undulator), acts as a 'master' controlling the undulator 'slave' energy position. This master-slave software implementation exploits EPICS distributed device control over computer network and allows for a quasi-synchronous motion control combined with data acquisition needed for the XAS or XMCD experiment.
- OSTI ID:
- 21410320
- 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: 10.1063/1.3463307; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION
ABSORPTION SPECTROSCOPY
COMPUTER CODES
COMPUTER NETWORKS
DATA ACQUISITION
GRATINGS
MAGNETIC CIRCULAR DICHROISM
MICROSCOPY
MIRRORS
MONOCHROMATORS
SURFACES
SYNCHROTRON RADIATION
WIGGLER MAGNETS
X RADIATION
X-RAY SPECTROSCOPY
BREMSSTRAHLUNG
DICHROISM
ELECTROMAGNETIC RADIATION
EQUIPMENT
IONIZING RADIATIONS
MAGNETS
RADIATIONS
SORPTION
SPECTROSCOPY