Water is an excellent shielding material against radiations, but must be very pure.
To reveal particles like solar neutrinos, there’s need of a large water shielding that surrounds the core of experimental apparatus to protects it from environmental radiation. Since water contains small amounts of radioactive contaminants it needs to be purified. The process includes several stages of filtration. At the and of the treatment the water is ultra-pure, millions of times less radioactive then at the beginning.
Discover the experiments and help the alien to get back home!Play now