First results with the ORPHEUS dark matter detector
Astrophysics
2011-01-17 v1
Abstract
The ORPHEUS dark matter detector is operating at our underground laboratory in Bern (70 m.w.e.). The detector relies on measuring the magnetic flux variation produced by weakly interacting massive particles (WIMPs) as they heat micron-sized superheated superconducting tin granules (SSG) and induce superconducting-to-normal phase transitions. In an initial phase, 0.45 kg of tin granules in a segmented detector volume have been used. In this paper a general description of the experimental set-up, overall performance of the detector, and first results are presented.
Cite
@article{arxiv.astro-ph/0404311,
title = {First results with the ORPHEUS dark matter detector},
author = {K. Borer and G. Czapek and F. Hasenbalg and M. Hauser and S. Janos and P. Loaiza and U. Moser and K. Pretzl and C. Schutz and P. Wicht and S. Wuthrich},
journal= {arXiv preprint arXiv:astro-ph/0404311},
year = {2011}
}
Comments
20 pages, Latex, submitted to Astropart. Phys