EMMA:: A new underground cosmic-ray experiment

被引：2

作者：

Enqvist, T. ^{[1
]}

Fohr, V. ^{[1
]}

Joutsenvaara, J. ^{[1
]}

Jamsen, T. ^{[2
]}

Keranen, P. ^{[3
]}

Kuusiniemi, P. ^{[1
]}

Laitala, H. ^{[4
]}

Lehtola, M. ^{[1
]}

Mattila, A. ^{[4
]}

Narkilahti, J. ^{[1
]}

Peltoniemi, J. ^{[4
]}

Remes, H. ^{[4
]}

Reponen, M. ^{[1
]}

Raiha, T. ^{[4
]}

Sarkamo, J. ^{[4
]}

Shen, C. ^{[1
]}

Vaittinen, M. ^{[4
]}

Zhang, Z. ^{[1
]}

Ding, L. ^{[5
]}

Zhu, Q. ^{[5
]}

Roos, M. ^{[6
]}

Dzaparova, I. ^{[7
]}

Karpov, S. ^{[7
]}

Kurenya, A. ^{[7
]}

Petkov, V. ^{[7
]}

Yanin, A. ^{[7
]}

Fynbo, H. ^{[8
]}

机构：

[1] CUPP, POB 22, FIN-86801 Pyhasalmi, Finland

[2] Univ Oulu, SGO, SF-90100 Oulu, Finland

[3] Univ Jyvaskyla, Dept Phys, SF-40351 Jyvaskyla, Finland

[4] Univ Oulu, CUPP, SF-90100 Oulu, Finland

[5] Chinese Acad Sci, IHEP, Beijing 100864, Peoples R China

[6] Univ Helsinki, Dept Phys Sci, FIN-00014 Helsinki, Finland

[7] Russian Acad Sci, INR, Moscow 117901, Russia

[8] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark

来源：

TAUP 2005: PROCEEDINGS OF THE NINTH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS | 2006年 / 39卷

基金：

芬兰科学院;

关键词：

D O I：

10.1088/1742-6596/39/1/125

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A cosmic-ray experiment of new type is under construction in the Pyhasalmi 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 (energy above 1 PeV). The experiment, called EMMA, covers about 150 m(2) of detector area, and the setup is capable of measuring the multiplicity and the lateral distribution of underground muons, and the arrival direction of the air shower. The detector is placed at the depth of about 85 metres (corresponding about 240 mwe) which gives a threshold energy of muons of about 45 GeV. The rock overburden filters out all other particles of the air shower except the high-energy muons. These high-energy muons originate at high altitudes close to the first interaction of the primary cosmic ray and they carry more information about the primary than low-energy muons. The full-size detector is supposed to run by the end of 2007.

引用

页码：478 / +

页数：2

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