Use of FP-SPLIT Slits for Reaching High Signal-to-Noise with MAMA Detectors

Details Use of FP-SPLIT Slits for Reaching High Signal-to-Noise with MAMA Detectors Use of FP-SPLIT Slits for Reaching High Signal-to-Noise with MAMA Detectors

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998stis.rept...16g&link_type=abstract

Instrument Science Report STIS 98-16, 18 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Stis, Space Telescope Imaging Spectrograph

Scientific paper

A pre-flight uncertainty for STIS was the extent to which the MAMA detectors would support high signal-to-noise observations given inherently low count rates, limitations on available flat fields, and the possibility of evolution in pixel-to-pixel response stability. This ISR reports on results from STIS/SMOV-7091 Pixel-to-pixel Response Stability in which spectra were acquired at high count levels through the FP-SPLIT slits with the express purpose of demonstrating the capability of reaching signal to noise of one hundred with the MAMA detectors. A S/N ratio of about 380 per resolution element was achieved for both FUV- and NUV-MAMA data.

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