First characterisation of the MAGO cavity, a superconducting RF detector for kHz-MHz gravitational waves

Fischer, Lars; Orlov, Yuriy; Posen, Sam; Grassellino, Anna; Wenskat, Marc; Pronitchev, Oleg; Hillert, Wolfgang; Khabiboulline, Timergali; Gonin, Ivan; Giaccone, Bianca; Krokotsch, Tom; Peters, Krisztian; Muhs, Andrea; Moortgat-Pick, Gudrid

Preprint

PUBDB-2024-07925

First characterisation of the MAGO cavity, a superconducting RF detector for kHz-MHz gravitational waves

Fischer, L. ; Giaccone, B. ; Gonin, I. ; Grassellino, A. ; Hillert, W. ; Khabiboulline, T. ; Krokotsch, T.Extern* ; Moortgat-Pick, G.DESY* ; Muhs, A. ; Orlov, Y. ; Peters, K. (Corresponding author)DESY* ; Posen, S. ; Pronitchev, O. ; Wenskat, M.DESY*

2024

[10.3204/PUBDB-2024-07925]

This record in other databases:

Please use a persistent id in citations: doi:10.3204/PUBDB-2024-07925

Report No.: DESY-24-181; FERMILAB-PUB-24-0819-SQMS-TD; arXiv:2411.18346

Abstract: Heterodyne detection using microwave cavities is a promising method for detecting high-frequency gravitational waves or ultralight axion dark matter. In this work, we report on studies conducted on a spherical 2-cell cavity developed by the MAGO collaboration for high-frequency gravitational waves detection. Although fabricated around 20 years ago, the cavity had not been used since. Due to deviations from the nominal geometry, we conducted a mechanical survey and performed room-temperature plastic tuning. Measurements and simulations of the mechanical resonances and electromagnetic properties were carried out, as these are critical for estimating the cavity's gravitational wave coupling potential. Based on these results, we plan further studies in a cryogenic environment. The cavity characterisation does not only provide valuable experience for a planned physics run but also informs the future development of improved cavity designs.

Classification: