HADES, Underground laboratory for ultra-low level gamma-ray spectrometry (EUFRAT)

JRC operates a laboratory for ultralow-level radioactivity measurements inside the 225 m deep underground laboratory HADES, which is located at the premises of the Belgian Nuclear Research Centre. In HADES, the muon flux (secondary cosmic rays) is a factor of 5000 lower compared to above ground and the flux of protons, neutrons and electrons is reduced to an insignificant level. This reduction of the cosmic ray flux makes the background in gamma-ray spectrometry measurements significantly lower compared to above ground. Therefore it is possible to detect very low amounts of radioactivity (sub mBq range). Eleven specially designed high purity germanium detectors are used for the measurements. There is also a scanning station by which the homogeneity of deadlayers in HPGe-detectors can be studied. Read further on the below link.

Call Deadline: 
Thursday, October 15, 2020
Further Information:
External Link