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Saturation

No saturation  problems are expected for the SWS Fabry-Pérot detectors. The saturation limit is given by the fact that the integration ramp for 1s detector reset time does not hit the saturation level of the warm electronics for signals less than about 20,000 tex2html_wrap_inline2404 V/s. Although not foreseen in the current design of the offline data processing, it is in principle possible to obtain data for signals about seven times stronger by analysis of partial integration ramps. It is assumed here that the expected strong flux has been correctly specified in the AOT input, since only then the gain and reset time are set properly. Taking typical values from Fig. 5.9 and Fig. 5.10, the 20,000 tex2html_wrap_inline2404 V/s limit corresponds to a saturating flux density of about tex2html_wrap_inline2875 Jy, or a saturating flux in an unresolved line of about tex2html_wrap_inline2877 Wm tex2html_wrap_inline2464 .



SWS Consortium
Wed Aug 7 17:20:29 MET DST 1996