The COUPP-60 detector was assembled by Fermilab. It consists of a jar filled with water and an element used in fire extinguishers, which is then shielded and submerged in more water underground. Photo: Fermilab
July 20, 2016
The COUPP-60 detector was assembled by Fermilab. It consists of a jar filled with water and an element used in fire extinguishers, which is then shielded and submerged in more water underground. Photo: Fermilab