A new type of cosmic-ray experiment is under construction in the Pyh\"asalmi mine in the underground laboratory of the University of Oulu, Finland. It aims to study the composition of cosmic rays at and above the knee region. The experiment, called EMMA, will cover approximately 150 square-metres of detector area. The array is capable of measuring the multiplicity and the lateral distribution of underground muons, and the arrival direction of the air shower. The full-size detector is expected to run by the end of 2007.
@article{arxiv.astro-ph/0512398,
title = {EMMA - A New Underground Cosmic-Ray Experiment},
author = {T. Enqvist and V. Föhr and J. Joutsenvaara and T. Jämsén and P. Keränen and P. Kuusiniemi and H. Laitala and M. Lehtola and A. Mattila and J. Narkilahti and J. Peltoniemi and H. Remes and M. Reponen and T. Räihä and J. Sarkamo and C. Shen and I. Usoskin and M. Vaittinen and Z. Zhang and L. Ding and Q. Zhu and M. Roos and I. Dzaparova and S. Karpov and A. Kurenya and V. Petkov and A. Yanin and H. Fynbo},
journal= {arXiv preprint arXiv:astro-ph/0512398},
year = {2009}
}
Comments
Extended and updated TAUP2005 Proceedings contribution. 8 pages, 5 figures (part in colour). Preprint not submitted