3 papers
physics.ins-det2025
Performance of Silicon photomultipliers at low temperatures
Otto Hanski, Tom Kiilerich, Sampsa Ahopelto +4
We present experimental results of characterization of Silicon photomultipliers (SiPM) in a temperature range from 90~mK to 40~K. Two SiPMs, one from ONSEMI and one from Hamamatsu…
physics.atom-ph2024
Cold source of atomic hydrogen for loading large magnetic traps
A. Semakin, J. Ahokas, O. Hanski +8
We present a design and performance tests of an intense source of cold hydrogen atoms for loading large magnetic traps. Our source is based on a cryogenic dissociator of molecular…
physics.atom-ph2024
GRASIAN: Shaping and characterization of the cold hydrogen and deuterium beams for the forthcoming first demonstration of gravitational quantum states of atoms
Carina Killian, Philipp Blumer, Paolo Crivelli +9
A low energy particle confined by a horizontal reflective surface and gravity settles in gravitationally bound quantum states. These gravitational quantum states (GQS) were so far…