Multichannel detection with a synchrotron light source design and potential

Larry Carr, Oleg Chubar and Paul Dumas 

It is clear that the introduction of the IR FPA detector has brought Fourier transform infrared (FTIR) microscopy with a thermal source to a new and exciting stage of development. This is illustrated in the other chapters of this volume. Our purpose in this chapter is to address how IR FPA technology could be combined with the synchrotron source to advance IR spectroscopic imaging in ways that would prove quite difficult with a conventional thermal source. To address this question, we will need to understand the detailed nature of the synchrotron IR source, the optical 

Let us assume that, in all cases, the optical arrangement is properly optimized, for bringing IR flux both from the source to the sample and from the sample to the detector, with all necessary matching. To estimate the spectral flux on the detector, one needs, first of all, to know the flux emitted by the source. If the spectral flux of the source Fsrc is known, then the average spectral flux reaching one pixel of a multichannel detector can be estimated as 

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Multichannel detection with a synchrotron light source design and potential... 

G. L. Carr, O. Chubar and P. Dumas, Multichannel detection with a synchrotron light source design and potential, in Spectrochemical Analysis Using Infrared Multichannel Detectors, eds. R. Bhargava and I. W. Levin, Blackwell Publishing Ltd., Oxford, 2005, pp. 56-84. 

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