1. Performance of a rapid-scan vacuum Michelson interferometer at the NSLS.
- Author
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Brierley, P., Badeau, B., Dumas, P., Smith, M., and Williams, G. P.
- Subjects
INTERFEROMETERS ,SYNCHROTRONS - Abstract
A commercial Nicolet Magna-IR series rapid-scan Michelson Fourier transform infrared was installed in a vacuum housing and integrated into the U4IR beamline at the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory. The frequency reference laser was mounted outside the vacuum, but the moving mirror mechanism and the dynamic alignment system for the fixed mirror were in a vacuum. The performance of the instrument was measured in the usual way by measuring the repeatability of data collected under specific conditions of aperture, resolution, and mirror scanning velocity. We briefly discuss the beamline design, to put the interferometer in context, then present signal to noise data which we discuss in terms of both instrument performance and also storage ring beam stability. Under optimal conditions, the instrument has a reproducibility of 0.01% in 1 min of measuring time at a resolution of 2 cm-1, over a range from 100–3000 cm-1. © 2002 American Institute of Physics. [ABSTRACT FROM AUTHOR]
- Published
- 2002
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