SMuK 2023 – scientific programme
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GR: Fachverband Gravitation und Relativitätstheorie
GR 14: Gravitational Waves II
GR 14.2: Talk
Thursday, March 23, 2023, 16:20–16:40, ZEU/0255
Test setup for cryogenic sensors and actuators working towards the Einstein Telescope — •Robert Joppe1, Thomas Hebbeker2, Tim Kuhlbusch1, Oliver Pooth2, Achim Stahl2, Timo Wittler1, and Franz-Peter Zantis1 — 1III. Physikalisches Institut A, RWTH Aachen — 2III. Physikalisches Institut B, RWTH Aachen
The Einstein Telescope will be the first gravitational wave detector of the third generation. The sensitivity goal, especially in the low frequency region, will be achieved among other improvements by cooling the main parts of the interferometer. The required electronic components, sensors and actuators needed for mirror alignment and active dampening of suspension resonances have to perform at cryogenic temperatures.
The talk presents the progress on the development of electronics, optics and mechanics within the E-TEST project. Furthermore the performance of our cryogenic UHV test setup and the characterization of light emitting diodes at low temperatures will be explicated.