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Polarisation optics

There are four optical components immediately above the dekker slide and immediately below the slit assembly which are used exclusively for polarimetric observations. The principles behind spectropolarimetric observing, and the ISIS/FOS-2 system, are described in detail in The ISIS Spectropolarimetry Users' manual, by J. Tinbergen and R.G.M. Rutten. Briefly the polarisation optics consist of:-



next up previous contents
Next: The slit area Up: ISIS Previous: Overall layout




Tue Aug 15 16:42:46 BST 1995