The Read-Out Shutter Unit of the Euclid VIS Instrument

TL;DR

This paper discusses the development and manufacturing status of the Read-out Shutter Unit for the Euclid VIS instrument, crucial for preventing light interference during CCD read-out and enabling calibration.

Contribution

It provides detailed insights into the design, development, and manufacturing progress of the Euclid VIS Read-out Shutter Unit, a key component for space-based cosmological measurements.

Findings

Successful development milestones achieved

Design meets space mission requirements

Ready for integration and testing phases

Abstract

Euclid is the second medium-size mission (M2) of the ESA Cosmic Vision Program, currently scheduled for a launch in 2020. The two instruments on-board Euclid, VIS and NISP, will provide key measurements to investigate the nature of dark energy, advancing our knowledge on cosmology. We present in this contribution the development and manufacturing status of the VIS Read-out Shutter Unit, whose main function is to prevent direct light from falling onto the VIS CCDs during the read-out of the scientific exposures and to allow the dark-current/bias calibrations of the instrument.