Ultracam camera control and data acquisition system

Details Ultracam camera control and data acquisition system Ultracam camera control and data acquisition system

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4848..218b&link_type=abstract

Advanced Telescope and Instrumentation Control Software II. Edited by Lewis, Hilton. Proceedings of the SPIE, Volume 4848, pp.

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Scientific paper

Ultracam is a high speed, three channel CCD camera designed to provide imaging photometry at high temporal resolution, allowing the study of rapidly changing astronomical phenomena such as eclipses, rapidly flickering light curves and occultation events. It is designed to provide frame rates up to 500 Hz with minimum inter-frame dead time and to time-tag each frame to within 1 millisecond of UT. The high data rates that this instrument produces, together with its use as a visitor instrument at a number of observatories, have lead to a highly modular design. Each major service (camera, control, sequencing, data handlers, etc.) is a separate process that communicates using XML documents via HTTP transport, allowing the services to be redeployed or reconfigured with minimal effort. The use of XML and HTTP also allows a web browser to act as a front end for any of the services, as well as providing easy access to services from other control systems. The overall design allows for simple re-engineering for a variety of imaging systems, and is already expected to provide control of IR arrays for the UKIRT Wide-Field Camera project. The instrument has been successfully commissioned on the William Herschel Telescope.

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