STIS MAMA Recovery from Anomalous Shutdown

Details STIS MAMA Recovery from Anomalous Shutdown STIS MAMA Recovery from Anomalous Shutdown

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008hst..prop11864w&link_type=abstract

HST Proposal ID #11864. Cycle 17

Computer Science

Scientific paper

This proposal is designed to permit recovery of the FUV- or NUV-MAMA detector after an anomalous shutdown. Anomalous shutdowns can occur as a result of bright object violations which trigger the Bright Scene Detection or Software Global Monitors. Anomalous shutdowns can also occur as a result of MAMA hardware problems. The anomalous recovery procedure consists of three separate tests where each must be successfully completed before proceeding onto the next: {1} a signal processing electronics check, {2} high voltage ramp-up to an intermediate voltage, and {3} high voltage ramp-up to the full operating voltage and fold analysis test During each of the two high voltage ramp-ups, diagnostics are performed during dark and flat field ACCUMs. This proposal executes the same steps as were in proposals 10036 during cycle 12.;

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