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Effects of temperature, mechanical motion and source positional jitter on the resolving power of beamline 02B at the SSRF
- Source :
- Journal of synchrotron radiation. 24(Pt 4)
- Publication Year :
- 2017
-
Abstract
- A detailed analysis of the effects of temperature excursions, instrumental mechanical motion and source position jitter on the energy-resolving power of beamline 02B at the Shanghai Synchrotron Radiation Facility (SSRF) is presented in this study. This beamline uses a bending-magnet-based source and includes a variable-line-spacing grating monochromator with additional optics. Expressions are derived for the monochromator output photon energy shifts for each of the performance challenges considered. The calculated results indicate that measured temperature excursions of ±1 K produce an energy shift of less than 11% of the system's energy resolution. Mechanical displacements and vibrations measured at amplitudes of less than 0.5 µm produce changes of less than 5%, while measured source location jitter results in a change of less than 10%. Spectroscopic test experiments at 250 and 400 eV provide energy resolutions of over 104. This analysis, combined with the measured results, confirms the operational stability of the beamline, indicating that it meets the performance requirements for experimental use.
- Subjects :
- 010302 applied physics
0301 basic medicine
Physics
030103 biophysics
Nuclear and High Energy Physics
Radiation
business.industry
Synchrotron radiation
Photon energy
Grating
01 natural sciences
Power (physics)
law.invention
Vibration
03 medical and health sciences
Optics
Beamline
law
0103 physical sciences
business
Instrumentation
Jitter
Monochromator
Subjects
Details
- ISSN :
- 16005775
- Volume :
- 24
- Issue :
- Pt 4
- Database :
- OpenAIRE
- Journal :
- Journal of synchrotron radiation
- Accession number :
- edsair.doi.dedup.....7c387d46d74a0ad82700e2e60e90a785