A Study on the emission characteristics of gadolinium ions in a water Cherenkov detector

Iwata, Yoshihiro; Sekiya, Hiroyuki*; Ieki, Kei*; Ito, Chikara

no journal, , 

Emission characteristics of gadolinium ions (Gd) in water are studied to estimate the effect of ion emission on the water Cherenkov detector. The emission lifetime is about 5 ms, and it was found that Gd emission measurement using a pulsed laser at 252.3 nm can be used for remote monitoring of Gd concentration in the range 0.01-0.1%.