Location of the COBRA Experiment

The Corno Grande in sunset twilight, Author:Hartmut Eckstein

The Corno Grande in sunset twilight
Author: Hartmut Eckstein

The COBRA experiment is located at the Gran Sasso National Laboratory (LNGS). LNGS is the largest underground laboratory in the world for experiments in particle physics, particle astrophysics and nuclear astrophysics. Located in the middle of Central Italy's largest massif, the extensive underground facilities are shielded with 1,400 m of rock and thus the cosmic ray flux is reduced by a factor of 106. Due to the smallness of the Uranium and Thorium content of the dolomite rocks of the mountain, the neutron flux is thousand times less than on surface.

Tunnel system of the LNGS underground laboratory

LNGS is located about 120 km from Rome, between the towns of L'Aquila and Teramo. The surface portion of LNGS houses support facilities, offices, conference rooms and a canteen. The underground facilities are located on a side of the ten kilometres long freeway tunnel crossing the Gran Sasso Mountain and are therefore easily accessible. In total 15 experiments are located in three large experimental halls, each about 100 m long, 20 m wide and 18 m high with a total volume of about 180,000 cubic metres. Besides neutrinoless double beta decay, main research topics are currently and have been in the past neutrino oscillations (OPERA, BOREXINO, ICARUS), dark matter (DAMA, CRESST, XENON) and proton decay (ICARUS).

 

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