ET-Pathfinder

ET-pathfinder involves the construction of a state-of-the-art R&D facility for interferometry with flexible high-tech laser setups. With this, extensive research can be done into gravitational waves. To be able to carry out this research, new technologies are needed, such as the use of highly cooled silicon mirrors with new coatings, to replace the usual quartz glass. The evacuation requirements of the system in which laser light propagates and the suppression of vibrations explore the limits of what is currently technologically feasible. Moreover, everything must be accommodated in an extremely dust-free environment or "clean room"..

Due to its unique character, ETpathfinder will also become an attraction for international research on high-precision measurement techniques, seismic isolation, measurement and control software, cryogenic technology and (quantum) optics.

With ETpathfinder, necessary tests can be done which can then be carried out on a large scale in the ultimately planned European Einstein telescope. This telescope is expected to be built in the coming decade. Geologically speaking and due to the presence of a number of top research institutes and high-tech industries, the Netherlands-Flanders region is a promising location for the telescope.

Project lead:

• Stichting Nederlandse Wetenschappelijk Onderzoek Instituten - Nikhef

Project partners:

• Universiteit Maastricht
• TU Eindhoven
• Universiteit Gent
• KULeuven
• Universiteit Hasselt - imo-imomec
• Universiteit Antwerpen

More information can be found on the project website.