Swiss industry contribution

Contamination Control Cover

The cover, developed by external page RUAG Aerospace, will protect MIRI against external against external contamination during the cooldown phase of the tests and after the launch. Additionally, this cryo-mechanism acts as an optical shutter for the instrument to allow on-board calibration and to protect the detectors against bright objects.

Cryo-Cables

These cables, developed by external page SYDERAL SA consist of 250 electrical wires which connect the cryogenic mechanisms, calibration sources and temperature sensors of the cold optical bench with the warm electronics.

Enlarged view: Contamination Control Cover on its mechanical support bracket — Contamination Control Cover on its mechanical support bracket manufactured by RUAG Aerospace (Image: MIRI)

Enlarged view: Cryotest facility at PSI — Cryotest facility at PSI equipped with the SYDERAL cables ready for cryogenic performance testing (Image: MIRI)