Extragalactic sensors

Published: 03 September 2008  10:30 AM
Source: The Engineer Online

E2v will supply ESO, the largest astronomical institute in Europe, with a set of CCD231-84 sensors over a two-year period.

The image sensors will be used on a new Multi Unit Spectroscopic Explorer (MUSE); a second-generation instrument being built for the Very Large Telescope, which will be used by European astronomy researchers.

According to e2v, the instrument will allow many thousands of spectra to be recorded simultaneously to allow high-efficiency studies of dense stellar and extragalactic astrophysical fields.

ESO is said to have selected the e2v devices for their high technical performance, which includes area 4k x 4k pixels; high quantum efficiency through the use of backthinned deep depletion silicon with an optimised graded thickness coating; and very low readout noise, with 2 e-rms nominal noise level.

Roland Bacon, principal investigator of the MUSE project, said: ‘MUSE is built to observe very distant galaxies, where the light has taken billions of years to travel and reach our telescopes.

‘Observing galaxies when the Universe was only a few billion years old is a big challenge as, at such distances, galaxies look tiny and are dramatically faint. The ESO second-generation VLT instrument MUSE is built to face this challenge.

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