Seminars : Documents

E-TEST: A prototype of large cryogenic mirror isolated from low-frequency seismic noise
Christophe Collette (Precision mechatronics laboratory, ULiège & BEAMS department, ULB)

The objective of the E-TEST instrumentation program is to develop a prototype for validating the Einstein-telescope-low-frequency (ET-LF) technology, i.e. a ‘large’ silicon mirror, an excellent suspension system for isolating the mirror from seismic motion, and a cooling strategy that is compatible with the isolation system. An active isolation system will be used and combined with a quasi-radiative cooling system at 10 K. A new patterned heat exchanger working radiatively have to be designed and implemented. The prototype will be installed in the existing facilities at the Space Centre of Liège (CSL) to take advantages of the knowledge in cryogenic qualification of Space Instruments.