4 papers
A centimeter-sized gas pressure sensor for high-vacuum measurements at cryogenic temperatures
Christoph Reinhardt, Lea Lara Stankewitz, Daniel Hartwig +5
Gas pressure sensors based on nanomechanical membranes have recently demonstrated an ultra-wide ten-decade measurement range, a gas-type-independent response, and a self-calibratin…
Any Light Particle Searches with ALPS II: first science results
Daniel C. Brotherton, Zachary R. Bush, Sandy Croatto +37
The light-shining-through-a-wall experiment ALPS II at DESY in Hamburg searched for axions and similar lightweight particles in its first science campaign from February to May 2024…
Distributed Acoustic Fiber Sensing for Research Campuses and Large Scientific Infrastructures -- The Hamburg WAVE proto-network
Oliver Bölt, Luigia Cristiano, Sandy Croatto +17
Here, we demonstrate and investigate how Distributed Acoustic Sensing (DAS) can be utilized on research campuses and in large scientific infrastructures to study environmental vibr…
Measurement of the thermal accommodation coefficient of helium on a crystalline silicon surface at low-temperatures
Alexander Franke, Nils Sültmann, Christoph Reinhardt +5
Next-generation gravitational wave observatories are expected to use cryogenically cooled, pendulum-suspended 200 kg test mass mirrors from a crystalline material such as crystalli…